diff --git a/talk/examples/android/AndroidManifest.xml b/talk/examples/android/AndroidManifest.xml
index e24942a13..91c027ec8 100644
--- a/talk/examples/android/AndroidManifest.xml
+++ b/talk/examples/android/AndroidManifest.xml
@@ -39,11 +39,11 @@
                   android:label="@string/settings_name">
         </activity>
 
-        <activity android:name="AppRTCDemoActivity"
+        <activity android:name="CallActivity"
                   android:label="@string/app_name"
                   android:screenOrientation="fullUser"
                   android:configChanges="orientation|screenSize"
-                  android:theme="@style/AppRTCDemoActivityTheme">
+                  android:theme="@style/CallActivityTheme">
         </activity>
     </application>
 </manifest>
diff --git a/talk/examples/android/res/layout/activity_call.xml b/talk/examples/android/res/layout/activity_call.xml
new file mode 100644
index 000000000..0aca7ad70
--- /dev/null
+++ b/talk/examples/android/res/layout/activity_call.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+    <android.opengl.GLSurfaceView
+        android:id="@+id/glview_call"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+    <FrameLayout
+        android:id="@+id/call_fragment_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</RelativeLayout>
diff --git a/talk/examples/android/res/layout/activity_fullscreen.xml b/talk/examples/android/res/layout/activity_fullscreen.xml
deleted file mode 100644
index d12ccfe3f..000000000
--- a/talk/examples/android/res/layout/activity_fullscreen.xml
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<RelativeLayout
-        xmlns:android="http://schemas.android.com/apk/res/android"
-        xmlns:tools="http://schemas.android.com/tools"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:orientation="vertical">
-
-    <android.opengl.GLSurfaceView
-            android:id="@+id/glview"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent" />
-
-    <TextView
-        android:id="@+id/encoder_stat"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignParentRight="true"
-        android:textStyle="bold"
-        android:textColor="#C000FF00"
-        android:textSize="12dp"
-        android:layout_margin="8dp"/>
-    <TextView
-        android:id="@+id/room_name"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
-        android:layout_above="@+id/menubar_fragment"
-        android:textSize="24sp"
-        android:layout_margin="8dp"/>
-    <fragment
-        android:name="org.appspot.apprtc.AppRTCDemoActivity$MenuBarFragment"
-        android:id="@+id/menubar_fragment"
-        android:layout_centerHorizontal="true"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_marginBottom="32dp"
-        tools:layout="@layout/fragment_menubar"/>
-
-</RelativeLayout>
diff --git a/talk/examples/android/res/layout/fragment_call.xml b/talk/examples/android/res/layout/fragment_call.xml
new file mode 100644
index 000000000..a6ef3731b
--- /dev/null
+++ b/talk/examples/android/res/layout/fragment_call.xml
@@ -0,0 +1,79 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/encoder_stat_call"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentRight="true"
+        android:textStyle="bold"
+        android:textColor="#C000FF00"
+        android:textSize="12dp"
+        android:layout_margin="8dp"/>
+
+    <TextView
+        android:id="@+id/contact_name_call"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerHorizontal="true"
+        android:layout_above="@+id/buttons_call_container"
+        android:textSize="24sp"
+        android:layout_margin="8dp"/>
+
+    <TextView
+        android:id="@+id/hud_stat_call"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:alpha="0.4"
+        android:background="@android:color/white"
+        android:textColor="@android:color/black" />
+
+    <ImageButton
+        android:id="@+id/button_toggle_debug"
+        android:background="@android:drawable/ic_menu_info_details"
+        android:contentDescription="@string/toggle_debug"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentLeft="true"
+        android:layout_width="48dp"
+        android:layout_height="48dp"/>
+
+    <LinearLayout
+           android:id="@+id/buttons_call_container"
+           android:orientation="horizontal"
+           android:layout_alignParentBottom="true"
+           android:layout_marginBottom="32dp"
+           android:layout_centerHorizontal="true"
+           android:layout_width="wrap_content"
+           android:layout_height="wrap_content">
+
+       <ImageButton
+           android:id="@+id/button_call_disconnect"
+           android:background="@drawable/disconnect"
+           android:contentDescription="@string/disconnect_call"
+           android:layout_marginRight="16dp"
+           android:layout_width="48dp"
+           android:layout_height="48dp"/>
+
+       <ImageButton
+           android:id="@+id/button_call_switch_camera"
+           android:background="@android:drawable/ic_menu_camera"
+           android:contentDescription="@string/switch_camera"
+           android:layout_marginRight="8dp"
+           android:layout_width="48dp"
+           android:layout_height="48dp"/>
+
+        <ImageButton
+           android:id="@+id/button_call_scaling_mode"
+           android:background="@drawable/ic_action_return_from_full_screen"
+           android:contentDescription="@string/disconnect_call"
+           android:layout_width="48dp"
+           android:layout_height="48dp"/>
+    </LinearLayout>
+
+</RelativeLayout>
diff --git a/talk/examples/android/res/layout/fragment_menubar.xml b/talk/examples/android/res/layout/fragment_menubar.xml
deleted file mode 100644
index 77dc819db..000000000
--- a/talk/examples/android/res/layout/fragment_menubar.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:tools="http://schemas.android.com/tools"
-              tools:context="org.appspot.apprtc.AppRTCDemoActivity$MenuBarFragment"
-              android:id="@+id/menubar"
-              android:orientation="horizontal"
-              android:layout_width="wrap_content"
-              android:layout_height="match_parent"
-              android:layout_gravity="center_vertical|center_horizontal">
-
-    <ImageButton
-        android:id="@+id/button_disconnect"
-        android:background="@drawable/disconnect"
-        android:contentDescription="@string/disconnect_call"
-        android:layout_marginRight="16dp"
-        android:layout_width="48dp"
-        android:layout_height="48dp"/>
-
-    <!-- TODO(kjellander): Add audio and video mute buttons. -->
-
-    <ImageButton
-        android:id="@+id/button_switch_camera"
-        android:background="@android:drawable/ic_menu_camera"
-        android:contentDescription="@string/switch_camera"
-        android:layout_marginRight="8dp"
-        android:layout_width="48dp"
-        android:layout_height="48dp"/>
-
-    <ImageButton
-        android:id="@+id/button_toggle_debug"
-        android:background="@android:drawable/ic_menu_info_details"
-        android:contentDescription="@string/disconnect_call"
-        android:layout_marginRight="8dp"
-        android:layout_width="48dp"
-        android:layout_height="48dp"/>
-
-    <ImageButton
-        android:id="@+id/button_scaling_mode"
-        android:background="@drawable/ic_action_return_from_full_screen"
-        android:contentDescription="@string/disconnect_call"
-        android:layout_width="48dp"
-        android:layout_height="48dp"/>
-
-</LinearLayout>
diff --git a/talk/examples/android/res/values/strings.xml b/talk/examples/android/res/values/strings.xml
index e63769286..b4d9095fb 100644
--- a/talk/examples/android/res/values/strings.xml
+++ b/talk/examples/android/res/values/strings.xml
@@ -17,6 +17,7 @@
     <string name="missing_url">FATAL ERROR: Missing URL to connect to.</string>
     <string name="ok">OK</string>
     <string name="switch_camera">Switch front/back camera</string>
+    <string name="toggle_debug">Toggle debug view</string>
     <string name="action_settings">Settings</string>
     <string name="add_room_description">Add new room to the list</string>
     <string name="remove_room_description">Remove room from the list</string>
@@ -40,7 +41,7 @@
     <string name="pref_cpu_usage_detection_key">cpu_usage_detection</string>
     <string name="pref_cpu_usage_detection_title">CPU overuse detection.</string>
     <string name="pref_cpu_usage_detection_dlg">Adapt transmission to CPU status.</string>
-    <string name="pref_cpu_usage_detection_default">true</string>
+    <string name="pref_cpu_usage_detection_default" translatable="false">true</string>
 
     <string name="pref_startbitrate_key">startbitrate_preference</string>
     <string name="pref_startbitrate_title">Start bitrate setting.</string>
@@ -68,6 +69,11 @@
     <string name="pref_room_server_url_key">room_server_url_preference</string>
     <string name="pref_room_server_url_title">Room server URL.</string>
     <string name="pref_room_server_url_dlg">Enter a room server URL.</string>
-    <string name="pref_room_server_url_default">https://apprtc.appspot.com</string>
+    <string name="pref_room_server_url_default" translatable="false">https://apprtc.appspot.com</string>
+
+    <string name="pref_displayhud_key">displayhud_preference</string>
+    <string name="pref_displayhud_title">Display call statistics.</string>
+    <string name="pref_displayhud_dlg">Display call statistics.</string>
+    <string name="pref_displayhud_default" translatable="false">false</string>
 
 </resources>
diff --git a/talk/examples/android/res/values/styles.xml b/talk/examples/android/res/values/styles.xml
index 7f809a657..1d7285006 100644
--- a/talk/examples/android/res/values/styles.xml
+++ b/talk/examples/android/res/values/styles.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-  <style name="AppRTCDemoActivityTheme" parent="android:Theme.Black">
+  <style name="CallActivityTheme" parent="android:Theme.Black">
     <item name="android:windowActionBar">false</item>
     <item name="android:windowFullscreen">true</item>
     <item name="android:windowNoTitle">true</item>
diff --git a/talk/examples/android/res/xml/preferences.xml b/talk/examples/android/res/xml/preferences.xml
index e49107710..3d7741843 100644
--- a/talk/examples/android/res/xml/preferences.xml
+++ b/talk/examples/android/res/xml/preferences.xml
@@ -58,4 +58,10 @@
         android:defaultValue="@string/pref_room_server_url_default"
         android:dialogTitle="@string/pref_room_server_url_dlg" />
 
+    <CheckBoxPreference
+        android:key="@string/pref_displayhud_key"
+        android:title="@string/pref_displayhud_title"
+        android:dialogTitle="@string/pref_displayhud_dlg"
+        android:defaultValue="@string/pref_displayhud_default" />
+
 </PreferenceScreen>
diff --git a/talk/examples/android/src/org/appspot/apprtc/AppRTCClient.java b/talk/examples/android/src/org/appspot/apprtc/AppRTCClient.java
index 138a32b3b..20f8a4a19 100644
--- a/talk/examples/android/src/org/appspot/apprtc/AppRTCClient.java
+++ b/talk/examples/android/src/org/appspot/apprtc/AppRTCClient.java
@@ -38,12 +38,28 @@ import java.util.List;
  * AppRTCClient is the interface representing an AppRTC client.
  */
 public interface AppRTCClient {
+
   /**
-   * Asynchronously connect to an AppRTC room URL, e.g.
-   * https://apprtc.appspot.com/?r=NNN. Once connection is established
-   * onConnectedToRoom() callback with room parameters is invoked.
+   * Struct holding the connection parameters of an AppRTC room.
    */
-  public void connectToRoom(final String url, final boolean loopback);
+  public static class RoomConnectionParameters {
+    public final String roomUrl;
+    public final String roomId;
+    public final boolean loopback;
+    public RoomConnectionParameters(
+        String roomUrl, String roomId, boolean loopback) {
+      this.roomUrl = roomUrl;
+      this.roomId = roomId;
+      this.loopback = loopback;
+    }
+  }
+
+  /**
+   * Asynchronously connect to an AppRTC room URL using supplied connection
+   * parameters. Once connection is established onConnectedToRoom()
+   * callback with room parameters is invoked.
+   */
+  public void connectToRoom(RoomConnectionParameters connectionParameters);
 
   /**
    * Send offer SDP to the other participant.
@@ -68,13 +84,12 @@ public interface AppRTCClient {
   /**
    * Struct holding the signaling parameters of an AppRTC room.
    */
-  public class SignalingParameters {
+  public static class SignalingParameters {
     public final List<PeerConnection.IceServer> iceServers;
     public final boolean initiator;
     public final MediaConstraints pcConstraints;
     public final MediaConstraints videoConstraints;
     public final MediaConstraints audioConstraints;
-    public final String roomId;
     public final String clientId;
     public final String wssUrl;
     public final String wssPostUrl;
@@ -85,15 +100,13 @@ public interface AppRTCClient {
         List<PeerConnection.IceServer> iceServers,
         boolean initiator, MediaConstraints pcConstraints,
         MediaConstraints videoConstraints, MediaConstraints audioConstraints,
-        String roomId, String clientId,
-        String wssUrl, String wssPostUrl,
+        String clientId, String wssUrl, String wssPostUrl,
         SessionDescription offerSdp, List<IceCandidate> iceCandidates) {
       this.iceServers = iceServers;
       this.initiator = initiator;
       this.pcConstraints = pcConstraints;
       this.videoConstraints = videoConstraints;
       this.audioConstraints = audioConstraints;
-      this.roomId = roomId;
       this.clientId = clientId;
       this.wssUrl = wssUrl;
       this.wssPostUrl = wssPostUrl;
diff --git a/talk/examples/android/src/org/appspot/apprtc/AppRTCDemoActivity.java b/talk/examples/android/src/org/appspot/apprtc/AppRTCDemoActivity.java
deleted file mode 100644
index 4705df655..000000000
--- a/talk/examples/android/src/org/appspot/apprtc/AppRTCDemoActivity.java
+++ /dev/null
@@ -1,691 +0,0 @@
-/*
- * libjingle
- * Copyright 2013 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. Redistributions in binary form must reproduce the above copyright notice,
- *     this list of conditions and the following disclaimer in the documentation
- *     and/or other materials provided with the distribution.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package org.appspot.apprtc;
-
-import org.appspot.apprtc.AppRTCClient.SignalingParameters;
-
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.app.Fragment;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.graphics.Color;
-import android.net.Uri;
-import android.opengl.GLSurfaceView;
-import android.os.Bundle;
-import android.util.Log;
-import android.util.TypedValue;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.ViewGroup.LayoutParams;
-import android.view.Window;
-import android.view.WindowManager;
-import android.widget.ImageButton;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import org.webrtc.IceCandidate;
-import org.webrtc.SessionDescription;
-import org.webrtc.StatsObserver;
-import org.webrtc.StatsReport;
-import org.webrtc.VideoRenderer;
-import org.webrtc.VideoRendererGui;
-import org.webrtc.VideoRendererGui.ScalingType;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Activity of the AppRTCDemo Android app demonstrating interoperability
- * between the Android/Java implementation of PeerConnection and the
- * apprtc.appspot.com demo webapp.
- */
-public class AppRTCDemoActivity extends Activity
-    implements AppRTCClient.SignalingEvents,
-      PeerConnectionClient.PeerConnectionEvents {
-  private static final String TAG = "AppRTCClient";
-  private PeerConnectionClient pc = null;
-  private AppRTCClient appRtcClient;
-  private SignalingParameters signalingParameters;
-  private AppRTCAudioManager audioManager = null;
-  private View rootView;
-  private View menuBar;
-  private GLSurfaceView videoView;
-  private VideoRenderer.Callbacks localRender;
-  private VideoRenderer.Callbacks remoteRender;
-  private ScalingType scalingType;
-  private Toast logToast;
-  private final LayoutParams hudLayout =
-      new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
-  private TextView hudView;
-  private TextView encoderStatView;
-  private TextView roomNameView;
-  private ImageButton videoScalingButton;
-  private String roomName;
-  private boolean commandLineRun;
-  private boolean activityRunning;
-  private int runTimeMs;
-  private int startBitrate;
-  private String videoCodec;
-  private boolean hwCodecAcceleration;
-  private boolean iceConnected;
-  private boolean isError;
-
-  @Override
-  public void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-
-    // Set window styles for fullscreen-window size. Needs to be done before
-    // adding content.
-    requestWindowFeature(Window.FEATURE_NO_TITLE);
-    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-    getWindow().getDecorView().setSystemUiVisibility(
-        View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
-        | View.SYSTEM_UI_FLAG_FULLSCREEN
-        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-
-    setContentView(R.layout.activity_fullscreen);
-
-    Thread.setDefaultUncaughtExceptionHandler(
-        new UnhandledExceptionHandler(this));
-    iceConnected = false;
-    signalingParameters = null;
-
-    rootView = findViewById(android.R.id.content);
-    encoderStatView = (TextView) findViewById(R.id.encoder_stat);
-    menuBar = findViewById(R.id.menubar_fragment);
-    roomNameView = (TextView) findViewById(R.id.room_name);
-    videoView = (GLSurfaceView) findViewById(R.id.glview);
-
-    VideoRendererGui.setView(videoView, new Runnable() {
-      @Override
-      public void run() {
-        createPeerConnectionFactory();
-      }
-    });
-    scalingType = ScalingType.SCALE_ASPECT_FILL;
-    remoteRender = VideoRendererGui.create(0, 0, 100, 100, scalingType, false);
-    localRender = VideoRendererGui.create(0, 0, 100, 100, scalingType, true);
-
-    videoView.setOnClickListener(
-        new View.OnClickListener() {
-          @Override
-          public void onClick(View view) {
-            int visibility = menuBar.getVisibility() == View.VISIBLE
-                    ? View.INVISIBLE : View.VISIBLE;
-            encoderStatView.setVisibility(visibility);
-            menuBar.setVisibility(visibility);
-            roomNameView.setVisibility(visibility);
-            if (visibility == View.VISIBLE) {
-              encoderStatView.bringToFront();
-              menuBar.bringToFront();
-              roomNameView.bringToFront();
-              rootView.invalidate();
-            }
-          }
-        });
-
-    ((ImageButton) findViewById(R.id.button_disconnect)).setOnClickListener(
-        new View.OnClickListener() {
-          @Override
-          public void onClick(View view) {
-            logAndToast("Disconnecting call.");
-            disconnect();
-          }
-        });
-
-    ((ImageButton) findViewById(R.id.button_switch_camera)).setOnClickListener(
-        new View.OnClickListener() {
-          @Override
-          public void onClick(View view) {
-            if (pc != null) {
-              pc.switchCamera();
-            }
-          }
-        });
-
-    ((ImageButton) findViewById(R.id.button_toggle_debug)).setOnClickListener(
-        new View.OnClickListener() {
-          @Override
-          public void onClick(View view) {
-            int visibility = hudView.getVisibility() == View.VISIBLE
-                ? View.INVISIBLE : View.VISIBLE;
-            hudView.setVisibility(visibility);
-          }
-        });
-
-    videoScalingButton = (ImageButton) findViewById(R.id.button_scaling_mode);
-    videoScalingButton.setOnClickListener(
-        new View.OnClickListener() {
-          @Override
-          public void onClick(View view) {
-            if (scalingType == ScalingType.SCALE_ASPECT_FILL) {
-              videoScalingButton.setBackgroundResource(
-                  R.drawable.ic_action_full_screen);
-              scalingType = ScalingType.SCALE_ASPECT_FIT;
-            } else {
-              videoScalingButton.setBackgroundResource(
-                  R.drawable.ic_action_return_from_full_screen);
-              scalingType = ScalingType.SCALE_ASPECT_FILL;
-            }
-            updateVideoView();
-          }
-        });
-
-    hudView = new TextView(this);
-    hudView.setTextColor(Color.BLACK);
-    hudView.setBackgroundColor(Color.WHITE);
-    hudView.setAlpha(0.4f);
-    hudView.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
-    hudView.setVisibility(View.INVISIBLE);
-    addContentView(hudView, hudLayout);
-
-    final Intent intent = getIntent();
-    Uri url = intent.getData();
-    roomName = intent.getStringExtra(ConnectActivity.EXTRA_ROOMNAME);
-    boolean loopback = intent.getBooleanExtra(
-        ConnectActivity.EXTRA_LOOPBACK, false);
-    commandLineRun = intent.getBooleanExtra(
-        ConnectActivity.EXTRA_CMDLINE, false);
-    runTimeMs = intent.getIntExtra(ConnectActivity.EXTRA_RUNTIME, 0);
-    startBitrate = intent.getIntExtra(ConnectActivity.EXTRA_BITRATE, 0);
-    if (intent.hasExtra(ConnectActivity.EXTRA_VIDEOCODEC)) {
-      videoCodec = intent.getStringExtra(ConnectActivity.EXTRA_VIDEOCODEC);
-    } else {
-      videoCodec = PeerConnectionClient.VIDEO_CODEC_VP8; // use VP8 by default.
-    }
-    hwCodecAcceleration = intent.getBooleanExtra(
-        ConnectActivity.EXTRA_HWCODEC, true);
-
-    if (url != null) {
-      if (loopback || (roomName != null && !roomName.equals(""))) {
-        // Start room connection.
-        logAndToast(getString(R.string.connecting_to, url));
-        appRtcClient = new WebSocketRTCClient(this);
-        appRtcClient.connectToRoom(url.toString(), loopback);
-        if (loopback) {
-          roomNameView.setText("loopback");
-        } else {
-          roomNameView.setText(roomName);
-        }
-
-        // Create and audio manager that will take care of audio routing,
-        // audio modes, audio device enumeration etc.
-        audioManager = AppRTCAudioManager.create(this, new Runnable() {
-            // This method will be called each time the audio state (number and
-            // type of devices) has been changed.
-            @Override
-            public void run() {
-              onAudioManagerChangedState();
-            }
-          }
-        );
-        // Store existing audio settings and change audio mode to
-        // MODE_IN_COMMUNICATION for best possible VoIP performance.
-        Log.d(TAG, "Initializing the audio manager...");
-        audioManager.init();
-
-        // For command line execution run connection for <runTimeMs> and exit.
-        if (commandLineRun && runTimeMs > 0) {
-          videoView.postDelayed(new Runnable() {
-            public void run() {
-              disconnect();
-            }
-          }, runTimeMs);
-        }
-      } else {
-        logAndToast("Empty or missing room name!");
-        setResult(RESULT_CANCELED);
-        finish();
-      }
-    } else {
-      logAndToast(getString(R.string.missing_url));
-      Log.e(TAG, "Didn't get any URL in intent!");
-      setResult(RESULT_CANCELED);
-      finish();
-    }
-  }
-
-  // Create peer connection factory when EGL context is ready.
-  private void createPeerConnectionFactory() {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (pc == null) {
-          pc = new PeerConnectionClient();
-          pc.createPeerConnectionFactory(AppRTCDemoActivity.this,
-              videoCodec, hwCodecAcceleration,
-              VideoRendererGui.getEGLContext(), AppRTCDemoActivity.this);
-        }
-        if (signalingParameters != null) {
-          Log.w(TAG, "EGL context is ready after room connection.");
-          onConnectedToRoomInternal(signalingParameters);
-        }
-      }
-    });
-  }
-
-  /**
-   * MenuBar fragment for AppRTC.
-   */
-  public static class MenuBarFragment extends Fragment {
-    @Override
-    public View onCreateView(
-        LayoutInflater inflater,
-        ViewGroup container,
-        Bundle savedInstanceState) {
-      return inflater.inflate(R.layout.fragment_menubar, container, false);
-    }
-  }
-
-  @Override
-  public void onPause() {
-    super.onPause();
-    videoView.onPause();
-    activityRunning = false;
-    if (pc != null) {
-      pc.stopVideoSource();
-    }
-  }
-
-  @Override
-  public void onResume() {
-    super.onResume();
-    videoView.onResume();
-    activityRunning = true;
-    if (pc != null) {
-      pc.startVideoSource();
-    }
-  }
-
-  @Override
-  protected void onDestroy() {
-    disconnect();
-    super.onDestroy();
-    if (logToast != null) {
-      logToast.cancel();
-    }
-    activityRunning = false;
-  }
-
-  private void updateVideoView() {
-    VideoRendererGui.update(remoteRender, 0, 0, 100, 100, scalingType);
-    if (iceConnected) {
-      VideoRendererGui.update(localRender, 70, 70, 28, 28,
-          ScalingType.SCALE_ASPECT_FIT);
-    } else {
-      VideoRendererGui.update(localRender, 0, 0, 100, 100, scalingType);
-    }
-  }
-
-  private void onAudioManagerChangedState() {
-    // TODO(henrika): disable video if AppRTCAudioManager.AudioDevice.EARPIECE
-    // is active.
-  }
-
-  // Disconnect from remote resources, dispose of local resources, and exit.
-  private void disconnect() {
-    if (appRtcClient != null) {
-      appRtcClient.disconnectFromRoom();
-      appRtcClient = null;
-    }
-    if (pc != null) {
-      pc.close();
-      pc = null;
-    }
-    if (audioManager != null) {
-      audioManager.close();
-      audioManager = null;
-    }
-    if (iceConnected && !isError) {
-      setResult(RESULT_OK);
-    } else {
-      setResult(RESULT_CANCELED);
-    }
-    finish();
-  }
-
-  private void disconnectWithErrorMessage(final String errorMessage) {
-    if (commandLineRun || !activityRunning) {
-      Log.e(TAG, "Critical error: " + errorMessage);
-      disconnect();
-    } else {
-      new AlertDialog.Builder(this)
-      .setTitle(getText(R.string.channel_error_title))
-      .setMessage(errorMessage)
-      .setCancelable(false)
-      .setNeutralButton(R.string.ok, new DialogInterface.OnClickListener() {
-          public void onClick(DialogInterface dialog, int id) {
-            dialog.cancel();
-            disconnect();
-          }
-        }).create().show();
-    }
-  }
-
-  // Log |msg| and Toast about it.
-  private void logAndToast(String msg) {
-    Log.d(TAG, msg);
-    if (logToast != null) {
-      logToast.cancel();
-    }
-    logToast = Toast.makeText(this, msg, Toast.LENGTH_SHORT);
-    logToast.show();
-  }
-
-  // Return the active connection stats,
-  // or null if active connection is not found.
-  private String getActiveConnectionStats(StatsReport report) {
-    StringBuilder activeConnectionbuilder = new StringBuilder();
-    // googCandidatePair to show information about the active
-    // connection.
-    for (StatsReport.Value value : report.values) {
-      if (value.name.equals("googActiveConnection")
-          && value.value.equals("false")) {
-        return null;
-      }
-      String name = value.name.replace("goog", "");
-      activeConnectionbuilder.append(name).append("=")
-          .append(value.value).append("\n");
-    }
-    return activeConnectionbuilder.toString();
-  }
-
-  // Update the heads-up display with information from |reports|.
-  private void updateHUD(StatsReport[] reports) {
-    StringBuilder builder = new StringBuilder();
-    for (StatsReport report : reports) {
-      Log.d(TAG, "Stats: " + report.toString());
-      // bweforvideo to show statistics for video Bandwidth Estimation,
-      // which is global per-session.
-      if (report.id.equals("bweforvideo")) {
-        for (StatsReport.Value value : report.values) {
-          String name = value.name.replace("goog", "")
-              .replace("Available", "").replace("Bandwidth", "")
-              .replace("Bitrate", "").replace("Enc", "");
-
-          builder.append(name).append("=").append(value.value)
-              .append(" ");
-        }
-        builder.append("\n");
-      } else if (report.type.equals("googCandidatePair")) {
-        String activeConnectionStats = getActiveConnectionStats(report);
-        if (activeConnectionStats == null) {
-          continue;
-        }
-        builder.append(activeConnectionStats);
-      } else {
-        continue;
-      }
-      builder.append("\n");
-    }
-    hudView.setText(builder.toString() + hudView.getText());
-  }
-
-  private Map<String, String> getReportMap(StatsReport report) {
-    Map<String, String> reportMap = new HashMap<String, String>();
-    for (StatsReport.Value value : report.values) {
-      reportMap.put(value.name, value.value);
-    }
-    return reportMap;
-  }
-
-  // Update encoder statistics view with information from |reports|.
-  private void updateEncoderStatistics(StatsReport[] reports) {
-    if (!iceConnected) {
-      return;
-    }
-    String fps = null;
-    String targetBitrate = null;
-    String actualBitrate = null;
-    for (StatsReport report : reports) {
-      if (report.type.equals("ssrc") && report.id.contains("ssrc")
-          && report.id.contains("send")) {
-        Map<String, String> reportMap = getReportMap(report);
-        String trackId = reportMap.get("googTrackId");
-        if (trackId != null
-            && trackId.contains(PeerConnectionClient.VIDEO_TRACK_ID)) {
-          fps = reportMap.get("googFrameRateSent");
-        }
-      } else if (report.id.equals("bweforvideo")) {
-        Map<String, String> reportMap = getReportMap(report);
-        targetBitrate = reportMap.get("googTargetEncBitrate");
-        actualBitrate = reportMap.get("googActualEncBitrate");
-      }
-    }
-    String stat = "";
-    if (fps != null) {
-      stat += "Fps:  " + fps + "\n";
-    }
-    if (targetBitrate != null) {
-      stat += "Target BR: " + targetBitrate + "\n";
-    }
-    if (actualBitrate != null) {
-      stat += "Actual BR: " + actualBitrate;
-    }
-    encoderStatView.setText(stat);
-  }
-
-  // -----Implementation of AppRTCClient.AppRTCSignalingEvents ---------------
-  // All callbacks are invoked from websocket signaling looper thread and
-  // are routed to UI thread.
-  private void onConnectedToRoomInternal(final SignalingParameters params) {
-    signalingParameters = params;
-    if (pc == null) {
-      Log.w(TAG, "Room is connected, but EGL context is not ready yet.");
-      return;
-    }
-    logAndToast("Creating peer connection...");
-    pc.createPeerConnection(
-        localRender, remoteRender, signalingParameters, startBitrate);
-
-    // Schedule statistics display.
-    final Runnable repeatedStatsLogger = new Runnable() {
-      public void run() {
-        if (pc == null) {
-          return;
-        }
-        final Runnable runnableThis = this;
-        if (hudView.getVisibility() == View.INVISIBLE
-            && encoderStatView.getVisibility() == View.INVISIBLE) {
-          videoView.postDelayed(runnableThis, 1000);
-          return;
-        }
-        boolean success = pc.getStats(new StatsObserver() {
-            public void onComplete(final StatsReport[] reports) {
-              runOnUiThread(new Runnable() {
-                  public void run() {
-                    if (hudView.getVisibility() == View.VISIBLE) {
-                      updateHUD(reports);
-                    }
-                    if (encoderStatView.getVisibility() == View.VISIBLE) {
-                      updateEncoderStatistics(reports);
-                    }
-                  }
-                });
-              videoView.postDelayed(runnableThis, 1000);
-            }
-          }, null);
-        if (!success) {
-          Log.w(TAG, "getStats() return false!");
-          videoView.postDelayed(runnableThis, 1000);
-        }
-      }
-    };
-    videoView.postDelayed(repeatedStatsLogger, 1000);
-
-    if (signalingParameters.initiator) {
-      logAndToast("Creating OFFER...");
-      // Create offer. Offer SDP will be sent to answering client in
-      // PeerConnectionEvents.onLocalDescription event.
-      pc.createOffer();
-    }
-  }
-
-  @Override
-  public void onConnectedToRoom(final SignalingParameters params) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        onConnectedToRoomInternal(params);
-      }
-    });
-  }
-
-  @Override
-  public void onRemoteDescription(final SessionDescription sdp) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (pc == null) {
-          return;
-        }
-        logAndToast("Received remote " + sdp.type + " ...");
-        pc.setRemoteDescription(sdp);
-        if (!signalingParameters.initiator) {
-          logAndToast("Creating ANSWER...");
-          // Create answer. Answer SDP will be sent to offering client in
-          // PeerConnectionEvents.onLocalDescription event.
-          pc.createAnswer();
-        }
-      }
-    });
-  }
-
-  @Override
-  public void onRemoteIceCandidate(final IceCandidate candidate) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (pc != null) {
-          pc.addRemoteIceCandidate(candidate);
-        }
-      }
-    });
-  }
-
-  @Override
-  public void onChannelClose() {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        logAndToast("Remote end hung up; dropping PeerConnection");
-        disconnect();
-      }
-    });
-  }
-
-  @Override
-  public void onChannelError(final String description) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (!isError) {
-          isError = true;
-          disconnectWithErrorMessage(description);
-        }
-      }
-    });
-  }
-
-  // -----Implementation of PeerConnectionClient.PeerConnectionEvents.---------
-  // Send local peer connection SDP and ICE candidates to remote party.
-  // All callbacks are invoked from peer connection client looper thread and
-  // are routed to UI thread.
-  @Override
-  public void onLocalDescription(final SessionDescription sdp) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (appRtcClient != null) {
-          logAndToast("Sending " + sdp.type + " ...");
-          if (signalingParameters.initiator) {
-            appRtcClient.sendOfferSdp(sdp);
-          } else {
-            appRtcClient.sendAnswerSdp(sdp);
-          }
-        }
-      }
-    });
-  }
-
-  @Override
-  public void onIceCandidate(final IceCandidate candidate) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (appRtcClient != null) {
-          appRtcClient.sendLocalIceCandidate(candidate);
-        }
-      }
-    });
-  }
-
-  @Override
-  public void onIceConnected() {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        logAndToast("ICE connected");
-        iceConnected = true;
-        updateVideoView();
-      }
-    });
-  }
-
-  @Override
-  public void onIceDisconnected() {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        logAndToast("ICE disconnected");
-        iceConnected = false;
-        disconnect();
-      }
-    });
-  }
-
-  @Override
-  public void onPeerConnectionClosed() {
-  }
-
-  @Override
-  public void onPeerConnectionError(final String description) {
-    runOnUiThread(new Runnable() {
-      @Override
-      public void run() {
-        if (!isError) {
-          isError = true;
-          disconnectWithErrorMessage(description);
-        }
-      }
-    });
-  }
-}
diff --git a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
new file mode 100644
index 000000000..1c8026603
--- /dev/null
+++ b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
@@ -0,0 +1,618 @@
+/*
+ * libjingle
+ * Copyright 2015 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.appspot.apprtc;
+
+import org.appspot.apprtc.AppRTCClient.RoomConnectionParameters;
+import org.appspot.apprtc.AppRTCClient.SignalingParameters;
+import org.appspot.apprtc.PeerConnectionClient.PeerConnectionParameters;
+import org.appspot.apprtc.util.LooperExecutor;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.FragmentTransaction;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.net.Uri;
+import android.opengl.GLSurfaceView;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.Toast;
+
+import org.webrtc.IceCandidate;
+import org.webrtc.SessionDescription;
+import org.webrtc.StatsReport;
+import org.webrtc.VideoRenderer;
+import org.webrtc.VideoRendererGui;
+import org.webrtc.VideoRendererGui.ScalingType;
+
+/**
+ * Activity for peer connection call setup, call waiting
+ * and call view.
+ */
+public class CallActivity extends Activity
+    implements AppRTCClient.SignalingEvents,
+      PeerConnectionClient.PeerConnectionEvents,
+      CallFragment.OnCallEvents {
+
+  public static final String EXTRA_ROOMID =
+      "org.appspot.apprtc.ROOMID";
+  public static final String EXTRA_LOOPBACK =
+      "org.appspot.apprtc.LOOPBACK";
+  public static final String EXTRA_HWCODEC =
+      "org.appspot.apprtc.HWCODEC";
+  public static final String EXTRA_VIDEO_BITRATE =
+      "org.appspot.apprtc.VIDEO_BITRATE";
+  public static final String EXTRA_VIDEO_WIDTH =
+      "org.appspot.apprtc.VIDEO_WIDTH";
+  public static final String EXTRA_VIDEO_HEIGHT =
+      "org.appspot.apprtc.VIDEO_HEIGHT";
+  public static final String EXTRA_VIDEO_FPS =
+      "org.appspot.apprtc.VIDEO_FPS";
+  public static final String EXTRA_VIDEOCODEC =
+      "org.appspot.apprtc.VIDEOCODEC";
+  public static final String EXTRA_CPUOVERUSE_DETECTION =
+      "org.appspot.apprtc.CPUOVERUSE_DETECTION";
+  public static final String EXTRA_DISPLAY_HUD =
+      "org.appspot.apprtc.DISPLAY_HUD";
+  public static final String EXTRA_CMDLINE =
+      "org.appspot.apprtc.CMDLINE";
+  public static final String EXTRA_RUNTIME =
+      "org.appspot.apprtc.RUNTIME";
+  private static final String TAG = "CallRTCClient";
+  // Peer connection statistics callback period in ms.
+  private static final int STAT_CALLBACK_PERIOD = 1000;
+  // Local preview screen position before call is connected.
+  private static final int LOCAL_X_CONNECTING = 0;
+  private static final int LOCAL_Y_CONNECTING = 0;
+  private static final int LOCAL_WIDTH_CONNECTING = 100;
+  private static final int LOCAL_HEIGHT_CONNECTING = 100;
+  // Local preview screen position after call is connected.
+  private static final int LOCAL_X_CONNECTED = 72;
+  private static final int LOCAL_Y_CONNECTED = 72;
+  private static final int LOCAL_WIDTH_CONNECTED = 25;
+  private static final int LOCAL_HEIGHT_CONNECTED = 25;
+  // Remote video screen position
+  private static final int REMOTE_X = 0;
+  private static final int REMOTE_Y = 0;
+  private static final int REMOTE_WIDTH = 100;
+  private static final int REMOTE_HEIGHT = 100;
+
+  private PeerConnectionClient peerConnectionClient = null;
+  private AppRTCClient appRtcClient;
+  private SignalingParameters signalingParameters;
+  private AppRTCAudioManager audioManager = null;
+  private VideoRenderer.Callbacks localRender;
+  private VideoRenderer.Callbacks remoteRender;
+  private ScalingType scalingType;
+  private Toast logToast;
+  private boolean commandLineRun;
+  private int runTimeMs;
+  private boolean activityRunning;
+  private RoomConnectionParameters roomConnectionParameters;
+  private PeerConnectionParameters peerConnectionParameters;
+  private boolean hwCodecAcceleration;
+  private String videoCodec;
+  private boolean iceConnected;
+  private boolean isError;
+  private boolean callControlFragmentVisible = true;
+
+  // Controls
+  private GLSurfaceView videoView;
+  CallFragment callFragment;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    Thread.setDefaultUncaughtExceptionHandler(
+        new UnhandledExceptionHandler(this));
+
+    // Set window styles for fullscreen-window size. Needs to be done before
+    // adding content.
+    requestWindowFeature(Window.FEATURE_NO_TITLE);
+    getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+    getWindow().getDecorView().setSystemUiVisibility(
+        View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+        | View.SYSTEM_UI_FLAG_FULLSCREEN
+        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+    setContentView(R.layout.activity_call);
+
+    iceConnected = false;
+    signalingParameters = null;
+    scalingType = ScalingType.SCALE_ASPECT_FILL;
+
+    // Create UI controls.
+    videoView = (GLSurfaceView) findViewById(R.id.glview_call);
+    callFragment = new CallFragment();
+
+    // Create video renderers.
+    VideoRendererGui.setView(videoView, new Runnable() {
+      @Override
+      public void run() {
+        createPeerConnectionFactory();
+      }
+    });
+    remoteRender = VideoRendererGui.create(
+        REMOTE_X, REMOTE_Y,
+        REMOTE_WIDTH, REMOTE_HEIGHT, scalingType, false);
+    localRender = VideoRendererGui.create(
+        LOCAL_X_CONNECTING, LOCAL_Y_CONNECTING,
+        LOCAL_WIDTH_CONNECTING, LOCAL_HEIGHT_CONNECTING, scalingType, true);
+
+    // Show/hide call control fragment on view click.
+    videoView.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View view) {
+        toggleCallControlFragmentVisibility();
+      }
+    });
+
+    // Get Intent parameters.
+    final Intent intent = getIntent();
+    Uri roomUri = intent.getData();
+    if (roomUri == null) {
+      logAndToast(getString(R.string.missing_url));
+      Log.e(TAG, "Didn't get any URL in intent!");
+      setResult(RESULT_CANCELED);
+      finish();
+      return;
+    }
+    String roomId = intent.getStringExtra(EXTRA_ROOMID);
+    if (roomId == null || roomId.length() == 0) {
+      logAndToast(getString(R.string.missing_url));
+      Log.e(TAG, "Incorrect room ID in intent!");
+      setResult(RESULT_CANCELED);
+      finish();
+      return;
+    }
+    boolean loopback = intent.getBooleanExtra(EXTRA_LOOPBACK, false);
+    hwCodecAcceleration = intent.getBooleanExtra(EXTRA_HWCODEC, true);
+    if (intent.hasExtra(EXTRA_VIDEOCODEC)) {
+      videoCodec = intent.getStringExtra(EXTRA_VIDEOCODEC);
+    } else {
+      videoCodec = PeerConnectionClient.VIDEO_CODEC_VP8; // use VP8 by default.
+    }
+    peerConnectionParameters = new PeerConnectionParameters(
+        intent.getIntExtra(EXTRA_VIDEO_WIDTH, 0),
+        intent.getIntExtra(EXTRA_VIDEO_HEIGHT, 0),
+        intent.getIntExtra(EXTRA_VIDEO_FPS, 0),
+        intent.getIntExtra(EXTRA_VIDEO_BITRATE, 0),
+        intent.getBooleanExtra(EXTRA_CPUOVERUSE_DETECTION, true));
+    commandLineRun = intent.getBooleanExtra(EXTRA_CMDLINE, false);
+    runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
+
+    // Create connection client and connection parameters.
+    appRtcClient = new WebSocketRTCClient(this, new LooperExecutor());
+    roomConnectionParameters = new RoomConnectionParameters(
+        roomUri.toString(), roomId, loopback);
+
+    // Send intent arguments to fragment.
+    callFragment.setArguments(intent.getExtras());
+    // Activate call fragment and start the call.
+    getFragmentManager().beginTransaction()
+        .add(R.id.call_fragment_container, callFragment).commit();
+    startCall();
+
+    // For command line execution run connection for <runTimeMs> and exit.
+    if (commandLineRun && runTimeMs > 0) {
+      videoView.postDelayed(new Runnable() {
+        public void run() {
+          disconnect();
+        }
+      }, runTimeMs);
+    }
+  }
+
+  // Activity interfaces
+  @Override
+  public void onPause() {
+    super.onPause();
+    videoView.onPause();
+    activityRunning = false;
+    if (peerConnectionClient != null) {
+      peerConnectionClient.stopVideoSource();
+    }
+  }
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    videoView.onResume();
+    activityRunning = true;
+    if (peerConnectionClient != null) {
+      peerConnectionClient.startVideoSource();
+    }
+  }
+
+  @Override
+  protected void onDestroy() {
+    disconnect();
+    super.onDestroy();
+    if (logToast != null) {
+      logToast.cancel();
+    }
+    activityRunning = false;
+  }
+
+  // CallFragment.OnCallEvents interface implementation.
+  @Override
+  public void onCallHangUp() {
+    disconnect();
+  }
+
+  @Override
+  public void onCameraSwitch() {
+    if (peerConnectionClient != null) {
+      peerConnectionClient.switchCamera();
+    }
+  }
+
+  @Override
+  public void onVideoScalingSwitch(ScalingType scalingType) {
+    this.scalingType = scalingType;
+    updateVideoView();
+  }
+
+  // Helper functions.
+  private void toggleCallControlFragmentVisibility() {
+    if (!iceConnected || !callFragment.isAdded()) {
+      return;
+    }
+    // Show/hide call control fragment
+    callControlFragmentVisible = !callControlFragmentVisible;
+    FragmentTransaction ft = getFragmentManager().beginTransaction();
+    if (callControlFragmentVisible) {
+      ft.show(callFragment);
+    } else {
+      ft.hide(callFragment);
+    }
+    ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
+    ft.commit();
+  }
+
+  private void updateVideoView() {
+    VideoRendererGui.update(remoteRender,
+        REMOTE_X, REMOTE_Y,
+        REMOTE_WIDTH, REMOTE_HEIGHT, scalingType);
+    if (iceConnected) {
+      VideoRendererGui.update(localRender,
+          LOCAL_X_CONNECTED, LOCAL_Y_CONNECTED,
+          LOCAL_WIDTH_CONNECTED, LOCAL_HEIGHT_CONNECTED,
+          ScalingType.SCALE_ASPECT_FIT);
+    } else {
+      VideoRendererGui.update(localRender,
+          LOCAL_X_CONNECTING, LOCAL_Y_CONNECTING,
+          LOCAL_WIDTH_CONNECTING, LOCAL_HEIGHT_CONNECTING, scalingType);
+    }
+  }
+
+  private void startCall() {
+    if (appRtcClient == null) {
+      Log.e(TAG, "AppRTC client is not allocated for a call.");
+      return;
+    }
+    // Start room connection.
+    logAndToast(getString(R.string.connecting_to,
+        roomConnectionParameters.roomUrl));
+    appRtcClient.connectToRoom(roomConnectionParameters);
+
+    // Create and audio manager that will take care of audio routing,
+    // audio modes, audio device enumeration etc.
+    audioManager = AppRTCAudioManager.create(this, new Runnable() {
+        // This method will be called each time the audio state (number and
+        // type of devices) has been changed.
+        @Override
+        public void run() {
+          onAudioManagerChangedState();
+        }
+      }
+    );
+    // Store existing audio settings and change audio mode to
+    // MODE_IN_COMMUNICATION for best possible VoIP performance.
+    Log.d(TAG, "Initializing the audio manager...");
+    audioManager.init();
+  }
+
+  // Should be called from UI thread
+  private void callConnected() {
+    // Update video view.
+    updateVideoView();
+    // Enable statistics callback.
+    peerConnectionClient.enableStatsEvents(true, STAT_CALLBACK_PERIOD);
+  }
+
+  private void onAudioManagerChangedState() {
+    // TODO(henrika): disable video if AppRTCAudioManager.AudioDevice.EARPIECE
+    // is active.
+  }
+
+  // Create peer connection factory when EGL context is ready.
+  private void createPeerConnectionFactory() {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (peerConnectionClient == null) {
+          peerConnectionClient = new PeerConnectionClient();
+          peerConnectionClient.createPeerConnectionFactory(CallActivity.this,
+              videoCodec, hwCodecAcceleration,
+              VideoRendererGui.getEGLContext(), CallActivity.this);
+        }
+        if (signalingParameters != null) {
+          Log.w(TAG, "EGL context is ready after room connection.");
+          onConnectedToRoomInternal(signalingParameters);
+        }
+      }
+    });
+  }
+
+  // Disconnect from remote resources, dispose of local resources, and exit.
+  private void disconnect() {
+    if (appRtcClient != null) {
+      appRtcClient.disconnectFromRoom();
+      appRtcClient = null;
+    }
+    if (peerConnectionClient != null) {
+      peerConnectionClient.close();
+      peerConnectionClient = null;
+    }
+    if (audioManager != null) {
+      audioManager.close();
+      audioManager = null;
+    }
+    if (iceConnected && !isError) {
+      setResult(RESULT_OK);
+    } else {
+      setResult(RESULT_CANCELED);
+    }
+    finish();
+  }
+
+  private void disconnectWithErrorMessage(final String errorMessage) {
+    if (commandLineRun || !activityRunning) {
+      Log.e(TAG, "Critical error: " + errorMessage);
+      disconnect();
+    } else {
+      new AlertDialog.Builder(this)
+          .setTitle(getText(R.string.channel_error_title))
+          .setMessage(errorMessage)
+          .setCancelable(false)
+          .setNeutralButton(R.string.ok, new DialogInterface.OnClickListener() {
+            @Override
+            public void onClick(DialogInterface dialog, int id) {
+              dialog.cancel();
+              disconnect();
+            }
+          }).create().show();
+    }
+  }
+
+  // Log |msg| and Toast about it.
+  private void logAndToast(String msg) {
+    Log.d(TAG, msg);
+    if (logToast != null) {
+      logToast.cancel();
+    }
+    logToast = Toast.makeText(this, msg, Toast.LENGTH_SHORT);
+    logToast.show();
+  }
+
+  // -----Implementation of AppRTCClient.AppRTCSignalingEvents ---------------
+  // All callbacks are invoked from websocket signaling looper thread and
+  // are routed to UI thread.
+  private void onConnectedToRoomInternal(final SignalingParameters params) {
+    signalingParameters = params;
+    if (peerConnectionClient == null) {
+      Log.w(TAG, "Room is connected, but EGL context is not ready yet.");
+      return;
+    }
+    logAndToast("Creating peer connection...");
+    peerConnectionClient.createPeerConnection(
+        localRender, remoteRender,
+        signalingParameters, peerConnectionParameters);
+
+    if (signalingParameters.initiator) {
+      logAndToast("Creating OFFER...");
+      // Create offer. Offer SDP will be sent to answering client in
+      // PeerConnectionEvents.onLocalDescription event.
+      peerConnectionClient.createOffer();
+    } else {
+      if (params.offerSdp != null) {
+        peerConnectionClient.setRemoteDescription(params.offerSdp);
+        logAndToast("Creating ANSWER...");
+        // Create answer. Answer SDP will be sent to offering client in
+        // PeerConnectionEvents.onLocalDescription event.
+        peerConnectionClient.createAnswer();
+      }
+      if (params.iceCandidates != null) {
+        // Add remote ICE candidates from room.
+        for (IceCandidate iceCandidate : params.iceCandidates) {
+          peerConnectionClient.addRemoteIceCandidate(iceCandidate);
+        }
+      }
+    }
+  }
+
+  @Override
+  public void onConnectedToRoom(final SignalingParameters params) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        onConnectedToRoomInternal(params);
+      }
+    });
+  }
+
+  @Override
+  public void onRemoteDescription(final SessionDescription sdp) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (peerConnectionClient == null) {
+          Log.e(TAG, "Received remote SDP for non-initilized peer connection.");
+          return;
+        }
+        logAndToast("Received remote " + sdp.type + " ...");
+        peerConnectionClient.setRemoteDescription(sdp);
+        if (!signalingParameters.initiator) {
+          logAndToast("Creating ANSWER...");
+          // Create answer. Answer SDP will be sent to offering client in
+          // PeerConnectionEvents.onLocalDescription event.
+          peerConnectionClient.createAnswer();
+        }
+      }
+    });
+  }
+
+  @Override
+  public void onRemoteIceCandidate(final IceCandidate candidate) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (peerConnectionClient == null) {
+          Log.e(TAG,
+              "Received ICE candidate for non-initilized peer connection.");
+          return;
+        }
+        peerConnectionClient.addRemoteIceCandidate(candidate);
+      }
+    });
+  }
+
+  @Override
+  public void onChannelClose() {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        logAndToast("Remote end hung up; dropping PeerConnection");
+        disconnect();
+      }
+    });
+  }
+
+  @Override
+  public void onChannelError(final String description) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (!isError) {
+          isError = true;
+          disconnectWithErrorMessage(description);
+        }
+      }
+    });
+  }
+
+  // -----Implementation of PeerConnectionClient.PeerConnectionEvents.---------
+  // Send local peer connection SDP and ICE candidates to remote party.
+  // All callbacks are invoked from peer connection client looper thread and
+  // are routed to UI thread.
+  @Override
+  public void onLocalDescription(final SessionDescription sdp) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (appRtcClient != null) {
+          logAndToast("Sending " + sdp.type + " ...");
+          if (signalingParameters.initiator) {
+            appRtcClient.sendOfferSdp(sdp);
+          } else {
+            appRtcClient.sendAnswerSdp(sdp);
+          }
+        }
+      }
+    });
+  }
+
+  @Override
+  public void onIceCandidate(final IceCandidate candidate) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (appRtcClient != null) {
+          appRtcClient.sendLocalIceCandidate(candidate);
+        }
+      }
+    });
+  }
+
+  @Override
+  public void onIceConnected() {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        logAndToast("ICE connected");
+        iceConnected = true;
+        callConnected();
+      }
+    });
+  }
+
+  @Override
+  public void onIceDisconnected() {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        logAndToast("ICE disconnected");
+        iceConnected = false;
+        disconnect();
+      }
+    });
+  }
+
+  @Override
+  public void onPeerConnectionClosed() {
+  }
+
+  @Override
+  public void onPeerConnectionStatsReady(final StatsReport[] reports) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (!isError && iceConnected) {
+          callFragment.updateEncoderStatistics(reports);
+        }
+      }
+    });
+  }
+
+  @Override
+  public void onPeerConnectionError(final String description) {
+    runOnUiThread(new Runnable() {
+      @Override
+      public void run() {
+        if (!isError) {
+          isError = true;
+          disconnectWithErrorMessage(description);
+        }
+      }
+    });
+  }
+}
diff --git a/talk/examples/android/src/org/appspot/apprtc/CallFragment.java b/talk/examples/android/src/org/appspot/apprtc/CallFragment.java
new file mode 100644
index 000000000..e6b5a6f73
--- /dev/null
+++ b/talk/examples/android/src/org/appspot/apprtc/CallFragment.java
@@ -0,0 +1,230 @@
+/*
+ * libjingle
+ * Copyright 2015 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.appspot.apprtc;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.os.Bundle;
+import android.util.TypedValue;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.TextView;
+
+import org.webrtc.StatsReport;
+import org.webrtc.VideoRendererGui.ScalingType;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Fragment for call control.
+ */
+public class CallFragment extends Fragment {
+  private View controlView;
+  private TextView encoderStatView;
+  private TextView roomIdView;
+  private ImageButton disconnectButton;
+  private ImageButton cameraSwitchButton;
+  private ImageButton videoScalingButton;
+  private ImageButton toggleDebugButton;
+  private OnCallEvents callEvents;
+  private ScalingType scalingType;
+  private boolean displayHud;
+  private volatile boolean isRunning;
+  private TextView hudView;
+
+  /**
+   * Call control interface for container activity.
+   */
+  public interface OnCallEvents {
+    public void onCallHangUp();
+    public void onCameraSwitch();
+    public void onVideoScalingSwitch(ScalingType scalingType);
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater, ViewGroup container,
+      Bundle savedInstanceState) {
+    controlView =
+        inflater.inflate(R.layout.fragment_call, container, false);
+
+    // Create UI controls.
+    encoderStatView =
+        (TextView) controlView.findViewById(R.id.encoder_stat_call);
+    roomIdView =
+        (TextView) controlView.findViewById(R.id.contact_name_call);
+    hudView =
+        (TextView) controlView.findViewById(R.id.hud_stat_call);
+    disconnectButton =
+        (ImageButton) controlView.findViewById(R.id.button_call_disconnect);
+    cameraSwitchButton =
+        (ImageButton) controlView.findViewById(R.id.button_call_switch_camera);
+    videoScalingButton =
+        (ImageButton) controlView.findViewById(R.id.button_call_scaling_mode);
+    toggleDebugButton =
+        (ImageButton) controlView.findViewById(R.id.button_toggle_debug);
+
+    // Add buttons click events.
+    disconnectButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View view) {
+        callEvents.onCallHangUp();
+      }
+    });
+
+    cameraSwitchButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View view) {
+        callEvents.onCameraSwitch();
+      }
+    });
+
+    videoScalingButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View view) {
+        if (scalingType == ScalingType.SCALE_ASPECT_FILL) {
+          videoScalingButton.setBackgroundResource(
+              R.drawable.ic_action_full_screen);
+          scalingType = ScalingType.SCALE_ASPECT_FIT;
+        } else {
+          videoScalingButton.setBackgroundResource(
+              R.drawable.ic_action_return_from_full_screen);
+          scalingType = ScalingType.SCALE_ASPECT_FILL;
+        }
+        callEvents.onVideoScalingSwitch(scalingType);
+      }
+    });
+    scalingType = ScalingType.SCALE_ASPECT_FILL;
+
+    toggleDebugButton.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View view) {
+        if (displayHud) {
+          int visibility = (hudView.getVisibility() == View.VISIBLE)
+              ? View.INVISIBLE : View.VISIBLE;
+          hudView.setVisibility(visibility);
+        }
+      }
+    });
+
+    return controlView;
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+
+    Bundle args = getArguments();
+    if (args != null) {
+      String roomId = args.getString(CallActivity.EXTRA_ROOMID);
+      roomIdView.setText(roomId);
+      displayHud = args.getBoolean(CallActivity.EXTRA_DISPLAY_HUD, false);
+    }
+    int visibility = displayHud ? View.VISIBLE : View.INVISIBLE;
+    encoderStatView.setVisibility(visibility);
+    toggleDebugButton.setVisibility(visibility);
+    hudView.setVisibility(View.INVISIBLE);
+    hudView.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
+    isRunning = true;
+  }
+
+  @Override
+  public void onStop() {
+    isRunning = false;
+    super.onStop();
+  }
+
+  @Override
+  public void onAttach(Activity activity) {
+    super.onAttach(activity);
+    callEvents = (OnCallEvents) activity;
+  }
+
+  private Map<String, String> getReportMap(StatsReport report) {
+    Map<String, String> reportMap = new HashMap<String, String>();
+    for (StatsReport.Value value : report.values) {
+      reportMap.put(value.name, value.value);
+    }
+    return reportMap;
+  }
+
+  public void updateEncoderStatistics(final StatsReport[] reports) {
+    if (!isRunning || !displayHud) {
+      return;
+    }
+    String fps = null;
+    String targetBitrate = null;
+    String actualBitrate = null;
+    StringBuilder bweBuilder = new StringBuilder();
+    for (StatsReport report : reports) {
+      if (report.type.equals("ssrc") && report.id.contains("ssrc")
+          && report.id.contains("send")) {
+        Map<String, String> reportMap = getReportMap(report);
+        String trackId = reportMap.get("googTrackId");
+        if (trackId != null
+            && trackId.contains(PeerConnectionClient.VIDEO_TRACK_ID)) {
+          fps = reportMap.get("googFrameRateSent");
+        }
+      } else if (report.id.equals("bweforvideo")) {
+        Map<String, String> reportMap = getReportMap(report);
+        targetBitrate = reportMap.get("googTargetEncBitrate");
+        actualBitrate = reportMap.get("googActualEncBitrate");
+
+        for (StatsReport.Value value : report.values) {
+          String name = value.name.replace("goog", "")
+              .replace("Available", "").replace("Bandwidth", "")
+              .replace("Bitrate", "").replace("Enc", "");
+          bweBuilder.append(name).append("=").append(value.value)
+              .append(" ");
+        }
+        bweBuilder.append("\n");
+      }
+    }
+
+    StringBuilder stat = new StringBuilder(128);
+    if (fps != null) {
+      stat.append("Fps:  ")
+          .append(fps)
+          .append("\n");
+    }
+    if (targetBitrate != null) {
+      stat.append("Target BR: ")
+          .append(targetBitrate)
+          .append("\n");
+    }
+    if (actualBitrate != null) {
+      stat.append("Actual BR: ")
+          .append(actualBitrate)
+          .append("\n");
+    }
+    encoderStatView.setText(stat.toString());
+    hudView.setText(bweBuilder.toString() + hudView.getText());
+  }
+}
diff --git a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
index 1f90f54e4..8c2323dd8 100644
--- a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
@@ -52,7 +52,6 @@ import android.widget.TextView;
 
 import org.json.JSONArray;
 import org.json.JSONException;
-import org.webrtc.MediaCodecVideoEncoder;
 
 import java.util.ArrayList;
 import java.util.Random;
@@ -61,14 +60,6 @@ import java.util.Random;
  * Handles the initial setup where the user selects which room to join.
  */
 public class ConnectActivity extends Activity {
-
-  public static final String EXTRA_ROOMNAME = "org.appspot.apprtc.ROOMNAME";
-  public static final String EXTRA_LOOPBACK = "org.appspot.apprtc.LOOPBACK";
-  public static final String EXTRA_CMDLINE = "org.appspot.apprtc.CMDLINE";
-  public static final String EXTRA_RUNTIME = "org.appspot.apprtc.RUNTIME";
-  public static final String EXTRA_BITRATE = "org.appspot.apprtc.BITRATE";
-  public static final String EXTRA_VIDEOCODEC = "org.appspot.apprtc.VIDEOCODEC";
-  public static final String EXTRA_HWCODEC = "org.appspot.apprtc.HWCODEC";
   private static final String TAG = "ConnectActivity";
   private static final int CONNECTION_REQUEST = 1;
   private static boolean commandLineRun = false;
@@ -87,6 +78,7 @@ public class ConnectActivity extends Activity {
   private String keyprefVideoCodec;
   private String keyprefHwCodecAcceleration;
   private String keyprefCpuUsageDetection;
+  private String keyprefDisplayHud;
   private String keyprefRoomServerUrl;
   private String keyprefRoom;
   private String keyprefRoomList;
@@ -107,6 +99,7 @@ public class ConnectActivity extends Activity {
     keyprefVideoCodec = getString(R.string.pref_videocodec_key);
     keyprefHwCodecAcceleration = getString(R.string.pref_hwcodec_key);
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
+    keyprefDisplayHud = getString(R.string.pref_displayhud_key);
     keyprefRoomServerUrl = getString(R.string.pref_room_server_url_key);
     keyprefRoom = getString(R.string.pref_room_key);
     keyprefRoomList = getString(R.string.pref_room_list_key);
@@ -146,8 +139,10 @@ public class ConnectActivity extends Activity {
     if ("android.intent.action.VIEW".equals(intent.getAction())
         && !commandLineRun) {
       commandLineRun = true;
-      boolean loopback = intent.getBooleanExtra(EXTRA_LOOPBACK, false);
-      int runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
+      boolean loopback = intent.getBooleanExtra(
+          CallActivity.EXTRA_LOOPBACK, false);
+      int runTimeMs = intent.getIntExtra(
+          CallActivity.EXTRA_RUNTIME, 0);
       String room = sharedPref.getString(keyprefRoom, "");
       roomEditText.setText(room);
       connectToRoom(loopback, runTimeMs);
@@ -216,6 +211,7 @@ public class ConnectActivity extends Activity {
     if (requestCode == CONNECTION_REQUEST && commandLineRun) {
       Log.d(TAG, "Return: " + resultCode);
       setResult(resultCode);
+      commandLineRun = false;
       finish();
     }
   }
@@ -232,32 +228,21 @@ public class ConnectActivity extends Activity {
     }
   };
 
-  private String appendQueryParameter(String url, String parameter) {
-    String newUrl = url;
-    if (newUrl.contains("?")) {
-      newUrl += "&" + parameter;
-    } else {
-      newUrl += "?" + parameter;
-    }
-    return newUrl;
-  }
-
   private void connectToRoom(boolean loopback, int runTimeMs) {
     // Get room name (random for loopback).
-    String roomName;
+    String roomId;
     if (loopback) {
-      roomName = Integer.toString((new Random()).nextInt(100000000));
+      roomId = Integer.toString((new Random()).nextInt(100000000));
     } else {
-      roomName = getSelectedItem();
-      if (roomName == null) {
-        roomName = roomEditText.getText().toString();
+      roomId = getSelectedItem();
+      if (roomId == null) {
+        roomId = roomEditText.getText().toString();
       }
     }
 
-    String url = sharedPref.getString(
+    String roomUrl = sharedPref.getString(
         keyprefRoomServerUrl,
         getString(R.string.pref_room_server_url_default));
-    url = WebSocketRTCClient.getGAEConnectionUrl(url, roomName);
 
     // Get default video codec.
     String videoCodec = sharedPref.getString(keyprefVideoCodec,
@@ -267,60 +252,36 @@ public class ConnectActivity extends Activity {
     boolean hwCodec = sharedPref.getBoolean(keyprefHwCodecAcceleration,
         Boolean.valueOf(getString(R.string.pref_hwcodec_default)));
 
-    // Add video resolution constraints.
-    String parametersResolution = null;
-    String parametersFps = null;
+    // Get video resolution from settings.
+    int videoWidth = 0;
+    int videoHeight = 0;
     String resolution = sharedPref.getString(keyprefResolution,
         getString(R.string.pref_resolution_default));
     String[] dimensions = resolution.split("[ x]+");
     if (dimensions.length == 2) {
       try {
-        int maxWidth = Integer.parseInt(dimensions[0]);
-        int maxHeight = Integer.parseInt(dimensions[1]);
-        if (maxWidth > 0 && maxHeight > 0) {
-          parametersResolution = "minHeight=" + maxHeight + ",maxHeight="
-              + maxHeight + ",minWidth=" + maxWidth + ",maxWidth=" + maxWidth;
-        }
+        videoWidth = Integer.parseInt(dimensions[0]);
+        videoHeight = Integer.parseInt(dimensions[1]);
       } catch (NumberFormatException e) {
+        videoWidth = 0;
+        videoHeight = 0;
         Log.e(TAG, "Wrong video resolution setting: " + resolution);
       }
     }
 
-    // Add camera fps constraints.
+    // Get camera fps from settings.
+    int cameraFps = 0;
     String fps = sharedPref.getString(keyprefFps,
         getString(R.string.pref_fps_default));
     String[] fpsValues = fps.split("[ x]+");
     if (fpsValues.length == 2) {
       try {
-        int cameraFps = Integer.parseInt(fpsValues[0]);
-        if (cameraFps > 0) {
-          parametersFps = "minFrameRate=" + cameraFps
-              + ",maxFrameRate=" + cameraFps;
-        }
+        cameraFps = Integer.parseInt(fpsValues[0]);
       } catch (NumberFormatException e) {
         Log.e(TAG, "Wrong camera fps setting: " + fps);
       }
     }
 
-    // Modify connection URL.
-    if (parametersResolution != null || parametersFps != null) {
-      String urlVideoParameters = "video=";
-      if (parametersResolution != null) {
-        urlVideoParameters += parametersResolution;
-        if (parametersFps != null) {
-          urlVideoParameters += ",";
-        }
-      }
-      if (parametersFps != null) {
-        urlVideoParameters += parametersFps;
-      }
-      url = appendQueryParameter(url, urlVideoParameters);
-    } else {
-      if (hwCodec && MediaCodecVideoEncoder.isPlatformSupported()) {
-        url = appendQueryParameter(url, "hd=true");
-      }
-    }
-
     // Get start bitrate.
     int startBitrate = 0;
     String bitrateTypeDefault = getString(R.string.pref_startbitrate_default);
@@ -337,23 +298,31 @@ public class ConnectActivity extends Activity {
         keyprefCpuUsageDetection,
         Boolean.valueOf(
             getString(R.string.pref_cpu_usage_detection_default)));
-    if (!cpuOveruseDetection) {
-      url = appendQueryParameter(url, "googCpuOveruseDetection=false");
-    }
+
+    // Check statistics display option.
+    boolean displayHud = sharedPref.getBoolean(keyprefDisplayHud,
+        Boolean.valueOf(getString(R.string.pref_displayhud_default)));
 
     // Start AppRTCDemo activity.
-    Log.d(TAG, "Connecting to room " + roomName + " at URL " + url);
-    if (validateUrl(url)) {
-      Uri uri = Uri.parse(url);
-      Intent intent = new Intent(this, AppRTCDemoActivity.class);
+    Log.d(TAG, "Connecting to room " + roomId + " at URL " + roomUrl);
+    if (validateUrl(roomUrl)) {
+      Uri uri = Uri.parse(roomUrl);
+      Intent intent = new Intent(this, CallActivity.class);
       intent.setData(uri);
-      intent.putExtra(EXTRA_ROOMNAME, roomName);
-      intent.putExtra(EXTRA_LOOPBACK, loopback);
-      intent.putExtra(EXTRA_CMDLINE, commandLineRun);
-      intent.putExtra(EXTRA_RUNTIME, runTimeMs);
-      intent.putExtra(EXTRA_BITRATE, startBitrate);
-      intent.putExtra(EXTRA_VIDEOCODEC, videoCodec);
-      intent.putExtra(EXTRA_HWCODEC, hwCodec);
+      intent.putExtra(CallActivity.EXTRA_ROOMID, roomId);
+      intent.putExtra(CallActivity.EXTRA_LOOPBACK, loopback);
+      intent.putExtra(CallActivity.EXTRA_VIDEOCODEC, videoCodec);
+      intent.putExtra(CallActivity.EXTRA_HWCODEC, hwCodec);
+      intent.putExtra(CallActivity.EXTRA_VIDEO_BITRATE, startBitrate);
+      intent.putExtra(CallActivity.EXTRA_VIDEO_WIDTH, videoWidth);
+      intent.putExtra(CallActivity.EXTRA_VIDEO_HEIGHT, videoHeight);
+      intent.putExtra(CallActivity.EXTRA_VIDEO_FPS, cameraFps);
+      intent.putExtra(CallActivity.EXTRA_CPUOVERUSE_DETECTION,
+          cpuOveruseDetection);
+      intent.putExtra(CallActivity.EXTRA_DISPLAY_HUD, displayHud);
+      intent.putExtra(CallActivity.EXTRA_CMDLINE, commandLineRun);
+      intent.putExtra(CallActivity.EXTRA_RUNTIME, runTimeMs);
+
       startActivityForResult(intent, CONNECTION_REQUEST);
     }
   }
diff --git a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
index 11676c9f0..bc239fe04 100644
--- a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
+++ b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
@@ -36,21 +36,25 @@ import android.util.Log;
 
 import org.webrtc.DataChannel;
 import org.webrtc.IceCandidate;
+import org.webrtc.MediaCodecVideoEncoder;
 import org.webrtc.MediaConstraints;
+import org.webrtc.MediaConstraints.KeyValuePair;
 import org.webrtc.MediaStream;
-import org.webrtc.MediaStreamTrack;
 import org.webrtc.PeerConnection;
 import org.webrtc.PeerConnection.IceConnectionState;
 import org.webrtc.PeerConnectionFactory;
 import org.webrtc.SdpObserver;
 import org.webrtc.SessionDescription;
 import org.webrtc.StatsObserver;
+import org.webrtc.StatsReport;
 import org.webrtc.VideoCapturer;
 import org.webrtc.VideoRenderer;
 import org.webrtc.VideoSource;
 import org.webrtc.VideoTrack;
 
 import java.util.LinkedList;
+import java.util.Timer;
+import java.util.TimerTask;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -61,39 +65,77 @@ import java.util.regex.Pattern;
  * All PeerConnectionEvents callbacks are invoked from the same looper thread.
  */
 public class PeerConnectionClient {
+  public static final String VIDEO_TRACK_ID = "ARDAMSv0";
+  public static final String AUDIO_TRACK_ID = "ARDAMSa0";
   private static final String TAG = "PCRTCClient";
   private static final boolean PREFER_ISAC = false;
   public static final String VIDEO_CODEC_VP8 = "VP8";
   public static final String VIDEO_CODEC_VP9 = "VP9";
   private static final String FIELD_TRIAL_VP9 = "WebRTC-SupportVP9/Enabled/";
-  public static final String VIDEO_TRACK_ID = "ARDAMSv0";
-  public static final String AUDIO_TRACK_ID = "ARDAMSa0";
+  private static final String MAX_VIDEO_WIDTH_CONSTRAINT = "maxWidth";
+  private static final String MIN_VIDEO_WIDTH_CONSTRAINT = "minWidth";
+  private static final String MAX_VIDEO_HEIGHT_CONSTRAINT = "maxHeight";
+  private static final String MIN_VIDEO_HEIGHT_CONSTRAINT = "minHeight";
+  private static final String MAX_VIDEO_FPS_CONSTRAINT = "maxFrameRate";
+  private static final String MIN_VIDEO_FPS_CONSTRAINT = "minFrameRate";
+  private static final int HD_VIDEO_WIDTH = 1280;
+  private static final int HD_VIDEO_HEIGHT = 720;
+  private static final int MAX_VIDEO_WIDTH = 1280;
+  private static final int MAX_VIDEO_HEIGHT = 1280;
+  private static final int MAX_VIDEO_FPS = 30;
 
   private final LooperExecutor executor;
   private PeerConnectionFactory factory = null;
-  private PeerConnection pc = null;
+  private PeerConnection peerConnection = null;
   private VideoSource videoSource;
   private boolean videoSourceStopped = false;
   private boolean isError = false;
+  private boolean videoCodecHwAcceleration;
+  private final Timer statsTimer = new Timer();
   private final PCObserver pcObserver = new PCObserver();
   private final SDPObserver sdpObserver = new SDPObserver();
   private VideoRenderer.Callbacks localRender;
   private VideoRenderer.Callbacks remoteRender;
   private SignalingParameters signalingParameters;
+  private MediaConstraints videoConstraints;
+  private PeerConnectionParameters peerConnectionParameters;
   // Queued remote ICE candidates are consumed only after both local and
   // remote descriptions are set. Similarly local ICE candidates are sent to
   // remote peer after both local and remote description are set.
   private LinkedList<IceCandidate> queuedRemoteCandidates = null;
   private MediaConstraints sdpMediaConstraints;
   private PeerConnectionEvents events;
-  private int startBitrate;
   private boolean isInitiator;
   private boolean useFrontFacingCamera = true;
   private SessionDescription localSdp = null; // either offer or answer SDP
   private MediaStream mediaStream = null;
+  // enableVideo is set to true if video should be rendered and sent.
+  private boolean renderVideo = true;
+  private VideoTrack localVideoTrack = null;
+  private VideoTrack remoteVideoTrack = null;
 
   /**
-   * SDP/ICE ready callbacks.
+   * Peer connection parameters.
+   */
+  public static class PeerConnectionParameters {
+    public final int videoWidth;
+    public final int videoHeight;
+    public final int videoFps;
+    public final int videoStartBitrate;
+    public final boolean cpuOveruseDetection;
+
+    public PeerConnectionParameters(int videoWidth, int videoHeight,
+        int videoFps, int videoStartBitrate, boolean cpuOveruseDetection) {
+      this.videoWidth = videoWidth;
+      this.videoHeight = videoHeight;
+      this.videoFps = videoFps;
+      this.videoStartBitrate = videoStartBitrate;
+      this.cpuOveruseDetection = cpuOveruseDetection;
+    }
+  }
+
+  /**
+   * Peer connection events.
    */
   public static interface PeerConnectionEvents {
     /**
@@ -123,11 +165,15 @@ public class PeerConnectionClient {
      */
     public void onPeerConnectionClosed();
 
+    /**
+     * Callback fired once peer connection statistics is ready.
+     */
+    public void onPeerConnectionStatsReady(final StatsReport[] reports);
+
     /**
      * Callback fired once peer connection error happened.
      */
     public void onPeerConnectionError(final String description);
-
   }
 
   public PeerConnectionClient() {
@@ -141,12 +187,13 @@ public class PeerConnectionClient {
       final EGLContext renderEGLContext,
       final PeerConnectionEvents events) {
     this.events = events;
+    this.videoCodecHwAcceleration = videoCodecHwAcceleration;
     executor.requestStart();
     executor.execute(new Runnable() {
       @Override
       public void run() {
         createPeerConnectionFactoryInternal(
-            context, videoCodec, videoCodecHwAcceleration, renderEGLContext);
+            context, videoCodec, renderEGLContext);
       }
     });
   }
@@ -155,11 +202,51 @@ public class PeerConnectionClient {
       final VideoRenderer.Callbacks localRender,
       final VideoRenderer.Callbacks remoteRender,
       final SignalingParameters signalingParameters,
-      final int startBitrate) {
+      final PeerConnectionParameters peerConnectionParameters) {
     this.localRender = localRender;
     this.remoteRender = remoteRender;
     this.signalingParameters = signalingParameters;
-    this.startBitrate = startBitrate;
+    this.peerConnectionParameters = peerConnectionParameters;
+    // Merge video constraints from signaling parameters and peer connection
+    // parameters.
+    videoConstraints = signalingParameters.videoConstraints;
+    if (videoConstraints != null && peerConnectionParameters != null) {
+      int videoWidth = peerConnectionParameters.videoWidth;
+      int videoHeight = peerConnectionParameters.videoHeight;
+
+      // If HW video encoder is supported and video resolution is not
+      // specified force it to HD.
+      if ((videoWidth == 0 || videoHeight == 0) && videoCodecHwAcceleration &&
+          MediaCodecVideoEncoder.isPlatformSupported()) {
+        videoWidth = HD_VIDEO_WIDTH;
+        videoHeight = HD_VIDEO_HEIGHT;
+      }
+
+      // Add video resolution constraints.
+      if (videoWidth > 0 && videoHeight > 0) {
+        videoWidth = Math.min(videoWidth, MAX_VIDEO_WIDTH);
+        videoHeight = Math.min(videoHeight, MAX_VIDEO_HEIGHT);
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MIN_VIDEO_WIDTH_CONSTRAINT, Integer.toString(videoWidth)));
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MAX_VIDEO_WIDTH_CONSTRAINT, Integer.toString(videoWidth)));
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MIN_VIDEO_HEIGHT_CONSTRAINT, Integer.toString(videoHeight)));
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MAX_VIDEO_HEIGHT_CONSTRAINT, Integer.toString(videoHeight)));
+      }
+
+      // Add fps constraints.
+      int videoFps = peerConnectionParameters.videoFps;
+      if (videoFps > 0) {
+        videoFps = Math.min(videoFps, MAX_VIDEO_FPS);
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MIN_VIDEO_FPS_CONSTRAINT, Integer.toString(videoFps)));
+        videoConstraints.mandatory.add(new KeyValuePair(
+            MAX_VIDEO_FPS_CONSTRAINT, Integer.toString(videoFps)));
+      }
+    }
+
     executor.execute(new Runnable() {
       @Override
       public void run() {
@@ -181,7 +268,6 @@ public class PeerConnectionClient {
   private void createPeerConnectionFactoryInternal(
       Context context,
       String videoCodec,
-      boolean videoCodecHwAcceleration,
       EGLContext renderEGLContext) {
     Log.d(TAG, "Create peer connection factory with EGLContext "
       + renderEGLContext);
@@ -204,7 +290,8 @@ public class PeerConnectionClient {
       Log.e(TAG, "Peerconnection factory is not created");
       return;
     }
-    Log.d(TAG, "Create peer connection.");
+    Log.d(TAG, "Create peer connection. VideoConstraints: "
+        + videoConstraints.toString());
     isInitiator = signalingParameters.initiator;
     queuedRemoteCandidates = new LinkedList<IceCandidate>();
 
@@ -217,8 +304,8 @@ public class PeerConnectionClient {
     MediaConstraints pcConstraints = signalingParameters.pcConstraints;
     pcConstraints.optional.add(
         new MediaConstraints.KeyValuePair("RtpDataChannels", "true"));
-    pc = factory.createPeerConnection(signalingParameters.iceServers,
-        pcConstraints, pcObserver);
+    peerConnection = factory.createPeerConnection(
+        signalingParameters.iceServers, pcConstraints, pcObserver);
     isInitiator = false;
 
     // Uncomment to get ALL WebRTC tracing and SENSITIVE libjingle logging.
@@ -229,7 +316,7 @@ public class PeerConnectionClient {
     //     Logging.Severity.LS_SENSITIVE);
 
     mediaStream = factory.createLocalMediaStream("ARDAMS");
-    if (signalingParameters.videoConstraints != null) {
+    if (videoConstraints != null) {
       mediaStream.addTrack(createVideoTrack(useFrontFacingCamera));
     }
 
@@ -238,15 +325,17 @@ public class PeerConnectionClient {
           AUDIO_TRACK_ID,
           factory.createAudioSource(signalingParameters.audioConstraints)));
     }
-    pc.addStream(mediaStream);
+    peerConnection.addStream(mediaStream);
+
     Log.d(TAG, "Peer connection created.");
   }
 
   private void closeInternal() {
     Log.d(TAG, "Closing peer connection.");
-    if (pc != null) {
-      pc.dispose();
-      pc = null;
+    statsTimer.cancel();
+    if (peerConnection != null) {
+      peerConnection.dispose();
+      peerConnection = null;
     }
     if (videoSource != null) {
       videoSource.dispose();
@@ -261,22 +350,90 @@ public class PeerConnectionClient {
     events.onPeerConnectionClosed();
   }
 
-  public boolean getStats(StatsObserver observer, MediaStreamTrack track) {
-    if (pc != null && !isError) {
-      return pc.getStats(observer, track);
+  public boolean isHDVideo() {
+    if (videoConstraints == null) {
+      return false;
+    }
+    int minWidth = 0;
+    int minHeight = 0;
+    for (KeyValuePair keyValuePair : videoConstraints.mandatory) {
+      if (keyValuePair.getKey().equals("minWidth")) {
+        try {
+          minWidth = Integer.parseInt(keyValuePair.getValue());
+        } catch (NumberFormatException e) {
+          Log.e(TAG, "Can not parse video width from video constraints");
+        }
+      } else if (keyValuePair.getKey().equals("minHeight")) {
+        try {
+          minHeight = Integer.parseInt(keyValuePair.getValue());
+        } catch (NumberFormatException e) {
+          Log.e(TAG, "Can not parse video height from video constraints");
+        }
+      }
+    }
+    if (minWidth * minHeight >= 1280 * 720) {
+      return true;
     } else {
       return false;
     }
   }
 
+  private void getStats() {
+    if (peerConnection == null || isError) {
+      return;
+    }
+    boolean success = peerConnection.getStats(new StatsObserver() {
+      @Override
+      public void onComplete(final StatsReport[] reports) {
+        events.onPeerConnectionStatsReady(reports);
+      }
+    }, null);
+    if (!success) {
+      Log.e(TAG, "getStats() returns false!");
+    }
+  }
+
+  public void enableStatsEvents(boolean enable, int periodMs) {
+    if (enable) {
+      statsTimer.schedule(new TimerTask() {
+        @Override
+        public void run() {
+          executor.execute(new Runnable() {
+            @Override
+            public void run() {
+              getStats();
+            }
+          });
+        }
+      }, 0, periodMs);
+    } else {
+      statsTimer.cancel();
+    }
+  }
+
+  public void setVideoEnabled(final boolean enable) {
+    executor.execute(new Runnable() {
+      @Override
+      public void run() {
+        renderVideo = enable;
+        if (localVideoTrack != null) {
+          localVideoTrack.setEnabled(renderVideo);
+        }
+        if (remoteVideoTrack != null) {
+          remoteVideoTrack.setEnabled(renderVideo);
+        }
+      }
+    });
+  }
+
   public void createOffer() {
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (pc != null && !isError) {
+        if (peerConnection != null && !isError) {
           Log.d(TAG, "PC Create OFFER");
           isInitiator = true;
-          pc.createOffer(sdpObserver, sdpMediaConstraints);
+          peerConnection.createOffer(sdpObserver, sdpMediaConstraints);
         }
       }
     });
@@ -286,10 +443,10 @@ public class PeerConnectionClient {
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (pc != null && !isError) {
+        if (peerConnection != null && !isError) {
           Log.d(TAG, "PC create ANSWER");
           isInitiator = false;
-          pc.createAnswer(sdpObserver, sdpMediaConstraints);
+          peerConnection.createAnswer(sdpObserver, sdpMediaConstraints);
         }
       }
     });
@@ -299,11 +456,11 @@ public class PeerConnectionClient {
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (pc != null && !isError) {
+        if (peerConnection != null && !isError) {
           if (queuedRemoteCandidates != null) {
             queuedRemoteCandidates.add(candidate);
           } else {
-            pc.addIceCandidate(candidate);
+            peerConnection.addIceCandidate(candidate);
           }
         }
       }
@@ -314,20 +471,21 @@ public class PeerConnectionClient {
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (pc == null || isError) {
+        if (peerConnection == null || isError) {
           return;
         }
         String sdpDescription = sdp.description;
         if (PREFER_ISAC) {
           sdpDescription = preferISAC(sdpDescription);
         }
-        if (startBitrate > 0) {
-          sdpDescription = setStartBitrate(sdpDescription, startBitrate);
+        if (peerConnectionParameters.videoStartBitrate > 0) {
+          sdpDescription = setStartBitrate(sdpDescription,
+              peerConnectionParameters.videoStartBitrate);
         }
         Log.d(TAG, "Set remote SDP.");
         SessionDescription sdpRemote = new SessionDescription(
             sdp.type, sdpDescription);
-        pc.setRemoteDescription(sdpObserver, sdpRemote);
+        peerConnection.setRemoteDescription(sdpObserver, sdpRemote);
       }
     });
   }
@@ -405,13 +563,14 @@ public class PeerConnectionClient {
       videoSource.dispose();
     }
 
-    videoSource = factory.createVideoSource(
-        capturer, signalingParameters.videoConstraints);
+    videoSource = factory.createVideoSource(capturer, videoConstraints);
     String trackExtension = frontFacing ? "frontFacing" : "backFacing";
-    VideoTrack videoTrack =
+
+    localVideoTrack =
         factory.createVideoTrack(VIDEO_TRACK_ID + trackExtension, videoSource);
-    videoTrack.addRenderer(new VideoRenderer(localRender));
-    return videoTrack;
+    localVideoTrack.setEnabled(renderVideo);
+    localVideoTrack.addRenderer(new VideoRenderer(localRender));
+    return localVideoTrack;
   }
 
   private static String setStartBitrate(
@@ -500,23 +659,24 @@ public class PeerConnectionClient {
     if (queuedRemoteCandidates != null) {
       Log.d(TAG, "Add " + queuedRemoteCandidates.size() + " remote candidates");
       for (IceCandidate candidate : queuedRemoteCandidates) {
-        pc.addIceCandidate(candidate);
+        peerConnection.addIceCandidate(candidate);
       }
       queuedRemoteCandidates = null;
     }
   }
 
   private void switchCameraInternal() {
-    if (signalingParameters.videoConstraints == null) {
+    if (videoConstraints == null) {
       return;  // No video is sent.
     }
-    if (pc.signalingState() != PeerConnection.SignalingState.STABLE) {
+    if (peerConnection.signalingState()
+        != PeerConnection.SignalingState.STABLE) {
       Log.e(TAG, "Switching camera during negotiation is not handled.");
       return;
     }
 
     Log.d(TAG, "Switch camera");
-    pc.removeStream(mediaStream);
+    peerConnection.removeStream(mediaStream);
     VideoTrack currentTrack = mediaStream.videoTracks.get(0);
     mediaStream.removeTrack(currentTrack);
 
@@ -530,9 +690,9 @@ public class PeerConnectionClient {
     useFrontFacingCamera = !useFrontFacingCamera;
     VideoTrack newTrack = createVideoTrack(useFrontFacingCamera);
     mediaStream.addTrack(newTrack);
-    pc.addStream(mediaStream);
+    peerConnection.addStream(mediaStream);
 
-    SessionDescription remoteDesc = pc.getRemoteDescription();
+    SessionDescription remoteDesc = peerConnection.getRemoteDescription();
     if (localSdp == null || remoteDesc == null) {
       Log.d(TAG, "Switching camera before the negotiation started.");
       return;
@@ -542,11 +702,15 @@ public class PeerConnectionClient {
         localSdp.description.replaceAll(trackId, newTrack.id()));
 
     if (isInitiator) {
-      pc.setLocalDescription(new SwitchCameraSdbObserver(), localSdp);
-      pc.setRemoteDescription(new SwitchCameraSdbObserver(), remoteDesc);
+      peerConnection.setLocalDescription(
+          new SwitchCameraSdbObserver(), localSdp);
+      peerConnection.setRemoteDescription(
+          new SwitchCameraSdbObserver(), remoteDesc);
     } else {
-      pc.setRemoteDescription(new SwitchCameraSdbObserver(), remoteDesc);
-      pc.setLocalDescription(new SwitchCameraSdbObserver(), localSdp);
+      peerConnection.setRemoteDescription(
+          new SwitchCameraSdbObserver(), remoteDesc);
+      peerConnection.setLocalDescription(
+          new SwitchCameraSdbObserver(), localSdp);
     }
     Log.d(TAG, "Switch camera done");
   }
@@ -555,7 +719,7 @@ public class PeerConnectionClient {
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (pc != null && !isError) {
+        if (peerConnection != null && !isError) {
           switchCameraInternal();
         }
       }
@@ -609,7 +773,7 @@ public class PeerConnectionClient {
       executor.execute(new Runnable() {
         @Override
         public void run() {
-          if (pc == null || isError) {
+          if (peerConnection == null || isError) {
             return;
           }
           if (stream.audioTracks.size() > 1 || stream.videoTracks.size() > 1) {
@@ -617,8 +781,9 @@ public class PeerConnectionClient {
             return;
           }
           if (stream.videoTracks.size() == 1) {
-            stream.videoTracks.get(0).addRenderer(
-                new VideoRenderer(remoteRender));
+            remoteVideoTrack = stream.videoTracks.get(0);
+            remoteVideoTrack.setEnabled(renderVideo);
+            remoteVideoTrack.addRenderer(new VideoRenderer(remoteRender));
           }
         }
       });
@@ -629,9 +794,10 @@ public class PeerConnectionClient {
       executor.execute(new Runnable() {
         @Override
         public void run() {
-          if (pc == null || isError) {
+          if (peerConnection == null || isError) {
             return;
           }
+          remoteVideoTrack = null;
           stream.videoTracks.get(0).dispose();
         }
       });
@@ -669,9 +835,9 @@ public class PeerConnectionClient {
       executor.execute(new Runnable() {
         @Override
         public void run() {
-          if (pc != null && !isError) {
+          if (peerConnection != null && !isError) {
             Log.d(TAG, "Set local SDP from " + sdp.type);
-            pc.setLocalDescription(sdpObserver, sdp);
+            peerConnection.setLocalDescription(sdpObserver, sdp);
           }
         }
       });
@@ -682,13 +848,13 @@ public class PeerConnectionClient {
       executor.execute(new Runnable() {
         @Override
         public void run() {
-          if (pc == null || isError) {
+          if (peerConnection == null || isError) {
             return;
           }
           if (isInitiator) {
             // For offering peer connection we first create offer and set
             // local SDP, then after receiving answer set remote SDP.
-            if (pc.getRemoteDescription() == null) {
+            if (peerConnection.getRemoteDescription() == null) {
               // We've just set our local SDP so time to send it.
               Log.d(TAG, "Local SDP set succesfully");
               events.onLocalDescription(localSdp);
@@ -701,7 +867,7 @@ public class PeerConnectionClient {
           } else {
             // For answering peer connection we set remote SDP and then
             // create answer and set local SDP.
-            if (pc.getLocalDescription() != null) {
+            if (peerConnection.getLocalDescription() != null) {
               // We've just set our local SDP so time to send it, drain
               // remote and send local ICE candidates.
               Log.d(TAG, "Local SDP set succesfully");
diff --git a/talk/examples/android/src/org/appspot/apprtc/RoomParametersFetcher.java b/talk/examples/android/src/org/appspot/apprtc/RoomParametersFetcher.java
index 4c26e07dc..2bb3cee98 100644
--- a/talk/examples/android/src/org/appspot/apprtc/RoomParametersFetcher.java
+++ b/talk/examples/android/src/org/appspot/apprtc/RoomParametersFetcher.java
@@ -56,6 +56,8 @@ public class RoomParametersFetcher {
   private static final String TAG = "RoomRTCClient";
   private final RoomParametersFetcherEvents events;
   private final boolean loopback;
+  private final String registerUrl;
+  private final String registerMessage;
   private AsyncHttpURLConnection httpConnection;
 
   /**
@@ -75,12 +77,17 @@ public class RoomParametersFetcher {
   }
 
   public RoomParametersFetcher(boolean loopback, String registerUrl,
-      final RoomParametersFetcherEvents events) {
-    Log.d(TAG, "Connecting to room: " + registerUrl);
+      String registerMessage, final RoomParametersFetcherEvents events) {
     this.loopback = loopback;
+    this.registerUrl = registerUrl;
+    this.registerMessage = registerMessage;
     this.events = events;
+  }
 
-    httpConnection = new AsyncHttpURLConnection("POST", registerUrl, null,
+  public void makeRequest() {
+    Log.d(TAG, "Connecting to room: " + registerUrl);
+    httpConnection = new AsyncHttpURLConnection(
+        "POST", registerUrl, registerMessage,
         new AsyncHttpEvents() {
           @Override
           public void onHttpError(String errorMessage) {
@@ -179,8 +186,7 @@ public class RoomParametersFetcher {
       SignalingParameters params = new SignalingParameters(
           iceServers, initiator,
           pcConstraints, videoConstraints, audioConstraints,
-          roomId, clientId,
-          wssUrl, wssPostUrl,
+          clientId, wssUrl, wssPostUrl,
           offerSdp, iceCandidates);
       events.onSignalingParametersReady(params);
     } catch (JSONException e) {
diff --git a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
index 3d68cf7c0..0e9278d77 100644
--- a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
@@ -47,6 +47,7 @@ public class SettingsActivity extends Activity
   private String keyprefHwCodec;
   private String keyprefCpuUsageDetection;
   private String keyPrefRoomServerUrl;
+  private String keyPrefDisplayHud;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
@@ -59,6 +60,7 @@ public class SettingsActivity extends Activity
     keyprefHwCodec = getString(R.string.pref_hwcodec_key);
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
     keyPrefRoomServerUrl = getString(R.string.pref_room_server_url_key);
+    keyPrefDisplayHud = getString(R.string.pref_displayhud_key);
 
     // Display the fragment as the main content.
     settingsFragment = new SettingsFragment();
@@ -83,6 +85,7 @@ public class SettingsActivity extends Activity
     updateSummaryB(sharedPreferences, keyprefHwCodec);
     updateSummaryB(sharedPreferences, keyprefCpuUsageDetection);
     updateSummary(sharedPreferences, keyPrefRoomServerUrl);
+    updateSummaryB(sharedPreferences, keyPrefDisplayHud);
   }
 
   @Override
@@ -105,7 +108,7 @@ public class SettingsActivity extends Activity
     } else if (key.equals(keyprefStartBitrateValue)) {
       updateSummaryBitrate(sharedPreferences, key);
     } else if (key.equals(keyprefCpuUsageDetection)
-        || key.equals(keyprefHwCodec)) {
+        || key.equals(keyprefHwCodec) || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);
     }
     if (key.equals(keyprefStartBitrateType)) {
diff --git a/talk/examples/android/src/org/appspot/apprtc/WebSocketRTCClient.java b/talk/examples/android/src/org/appspot/apprtc/WebSocketRTCClient.java
index d3c656a2c..1142533f2 100644
--- a/talk/examples/android/src/org/appspot/apprtc/WebSocketRTCClient.java
+++ b/talk/examples/android/src/org/appspot/apprtc/WebSocketRTCClient.java
@@ -54,43 +54,43 @@ import org.webrtc.SessionDescription;
 public class WebSocketRTCClient implements AppRTCClient,
     WebSocketChannelEvents {
   private static final String TAG = "WSRTCClient";
-  public static final String GAE_JOIN = "join";
-  private static final String GAE_MESSAGE = "message";
-  private static final String GAE_LEAVE = "leave";
+  private static final String ROOM_JOIN = "join";
+  private static final String ROOM_MESSAGE = "message";
+  private static final String ROOM_LEAVE = "leave";
 
   private enum ConnectionState {
     NEW, CONNECTED, CLOSED, ERROR
   };
   private enum MessageType {
-    MESSAGE, BYE
+    MESSAGE, LEAVE
   };
   private final LooperExecutor executor;
-  private boolean loopback;
   private boolean initiator;
   private SignalingEvents events;
   private WebSocketChannelClient wsClient;
   private ConnectionState roomState;
-  private String roomUrl;
-  private String postMessageUrl;
-  private String byeMessageUrl;
+  private RoomConnectionParameters connectionParameters;
+  private String messageUrl;
+  private String leaveUrl;
 
-  public WebSocketRTCClient(SignalingEvents events) {
+  public WebSocketRTCClient(SignalingEvents events, LooperExecutor executor) {
     this.events = events;
-    executor = new LooperExecutor();
+    this.executor = executor;
+    roomState = ConnectionState.NEW;
   }
 
   // --------------------------------------------------------------------
   // AppRTCClient interface implementation.
-  // Asynchronously connect to an AppRTC room URL, e.g.
-  // https://apprtc.appspot.com/register/<room>, retrieve room parameters
-  // and connect to WebSocket server.
+  // Asynchronously connect to an AppRTC room URL using supplied connection
+  // parameters, retrieves room parameters and connect to WebSocket server.
   @Override
-  public void connectToRoom(final String url, final boolean loopback) {
+  public void connectToRoom(RoomConnectionParameters connectionParameters) {
+    this.connectionParameters = connectionParameters;
     executor.requestStart();
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        connectToRoomInternal(url, loopback);
+        connectToRoomInternal();
       }
     });
   }
@@ -107,33 +107,32 @@ public class WebSocketRTCClient implements AppRTCClient,
   }
 
   // Connects to room - function runs on a local looper thread.
-  private void connectToRoomInternal(String url, boolean loopback) {
-    Log.d(TAG, "Connect to room: " + url);
-    this.loopback = loopback;
+  private void connectToRoomInternal() {
+    String connectionUrl = getConnectionUrl(connectionParameters);
+    Log.d(TAG, "Connect to room: " + connectionUrl);
     roomState = ConnectionState.NEW;
-    roomUrl = url.substring(0, url.indexOf("/" + GAE_JOIN));
-    // Create WebSocket client.
     wsClient = new WebSocketChannelClient(executor, this);
-    // Get room parameters.
-    new RoomParametersFetcher(loopback, url,
-      new RoomParametersFetcherEvents() {
-        @Override
-        public void onSignalingParametersReady(
-            final SignalingParameters params) {
-          executor.execute(new Runnable() {
-            @Override
-            public void run() {
-              signalingParametersReady(params);
-            }
-          });
-        }
 
-        @Override
-        public void onSignalingParametersError(String description) {
-          reportError(description);
-        }
+    RoomParametersFetcherEvents callbacks = new RoomParametersFetcherEvents() {
+      @Override
+      public void onSignalingParametersReady(
+          final SignalingParameters params) {
+        WebSocketRTCClient.this.executor.execute(new Runnable() {
+          @Override
+          public void run() {
+            WebSocketRTCClient.this.signalingParametersReady(params);
+          }
+        });
       }
-    );
+
+      @Override
+      public void onSignalingParametersError(String description) {
+        WebSocketRTCClient.this.reportError(description);
+      }
+    };
+
+    new RoomParametersFetcher(connectionParameters.loopback, connectionUrl,
+        null, callbacks).makeRequest();
   }
 
   // Disconnect from room and send bye messages - runs on a local looper thread.
@@ -141,7 +140,7 @@ public class WebSocketRTCClient implements AppRTCClient,
     Log.d(TAG, "Disconnect. Room state: " + roomState);
     if (roomState == ConnectionState.CONNECTED) {
       Log.d(TAG, "Closing room.");
-      sendPostMessage(MessageType.BYE, byeMessageUrl, "");
+      sendPostMessage(MessageType.LEAVE, leaveUrl, null);
     }
     roomState = ConnectionState.CLOSED;
     if (wsClient != null) {
@@ -150,57 +149,53 @@ public class WebSocketRTCClient implements AppRTCClient,
   }
 
   // Helper functions to get connection, post message and leave message URLs
-  public static String getGAEConnectionUrl(String roomUrl, String roomId) {
-    return roomUrl + "/" + GAE_JOIN + "/" + roomId;
+  private String getConnectionUrl(
+      RoomConnectionParameters connectionParameters) {
+    return connectionParameters.roomUrl + "/" + ROOM_JOIN + "/"
+        + connectionParameters.roomId;
   }
 
-  private String getGAEPostMessageUrl(String roomUrl, String roomId,
-      String clientId) {
-    return roomUrl + "/" + GAE_MESSAGE + "/" + roomId + "/" + clientId;
+  private String getMessageUrl(RoomConnectionParameters connectionParameters,
+      SignalingParameters signalingParameters) {
+    return connectionParameters.roomUrl + "/" + ROOM_MESSAGE + "/"
+      + connectionParameters.roomId + "/" + signalingParameters.clientId;
   }
 
-  private String getGAEByeMessageUrl(String roomUrl, String roomId,
-      String clientId) {
-    return roomUrl + "/" + GAE_LEAVE + "/" + roomId + "/" + clientId;
+  private String getLeaveUrl(RoomConnectionParameters connectionParameters,
+      SignalingParameters signalingParameters) {
+    return connectionParameters.roomUrl + "/" + ROOM_LEAVE + "/"
+        + connectionParameters.roomId + "/" + signalingParameters.clientId;
   }
 
   // Callback issued when room parameters are extracted. Runs on local
   // looper thread.
-  private void signalingParametersReady(final SignalingParameters params) {
+  private void signalingParametersReady(
+      final SignalingParameters signalingParameters) {
     Log.d(TAG, "Room connection completed.");
-    if (loopback && (!params.initiator || params.offerSdp != null)) {
+    if (connectionParameters.loopback
+        && (!signalingParameters.initiator
+            || signalingParameters.offerSdp != null)) {
       reportError("Loopback room is busy.");
       return;
     }
-    if (!loopback && !params.initiator && params.offerSdp == null) {
+    if (!connectionParameters.loopback
+        && !signalingParameters.initiator
+        && signalingParameters.offerSdp == null) {
       Log.w(TAG, "No offer SDP in room response.");
     }
-    initiator = params.initiator;
-    postMessageUrl = getGAEPostMessageUrl(
-        roomUrl, params.roomId, params.clientId);
-    byeMessageUrl = getGAEByeMessageUrl(
-        roomUrl, params.roomId, params.clientId);
+    initiator = signalingParameters.initiator;
+    messageUrl = getMessageUrl(connectionParameters, signalingParameters);
+    leaveUrl = getLeaveUrl(connectionParameters, signalingParameters);
+    Log.d(TAG, "Message URL: " + messageUrl);
+    Log.d(TAG, "Leave URL: " + leaveUrl);
     roomState = ConnectionState.CONNECTED;
 
     // Fire connection and signaling parameters events.
-    events.onConnectedToRoom(params);
+    events.onConnectedToRoom(signalingParameters);
 
     // Connect to WebSocket server.
-    wsClient.connect(
-        params.wssUrl, params.wssPostUrl, params.roomId, params.clientId);
-
-    // For call receiver get sdp offer and ice candidates
-    // from room parameters and fire corresponding events.
-    if (!params.initiator) {
-      if (params.offerSdp != null) {
-        events.onRemoteDescription(params.offerSdp);
-      }
-      if (params.iceCandidates != null) {
-        for (IceCandidate iceCandidate : params.iceCandidates) {
-          events.onRemoteIceCandidate(iceCandidate);
-        }
-      }
-    }
+    wsClient.connect(signalingParameters.wssUrl, signalingParameters.wssPostUrl,
+        connectionParameters.roomId, signalingParameters.clientId);
   }
 
   // Send local offer SDP to the other participant.
@@ -216,8 +211,8 @@ public class WebSocketRTCClient implements AppRTCClient,
         JSONObject json = new JSONObject();
         jsonPut(json, "sdp", sdp.description);
         jsonPut(json, "type", "offer");
-        sendPostMessage(MessageType.MESSAGE, postMessageUrl, json.toString());
-        if (loopback) {
+        sendPostMessage(MessageType.MESSAGE, messageUrl, json.toString());
+        if (connectionParameters.loopback) {
           // In loopback mode rename this offer to answer and route it back.
           SessionDescription sdpAnswer = new SessionDescription(
               SessionDescription.Type.fromCanonicalForm("answer"),
@@ -234,7 +229,7 @@ public class WebSocketRTCClient implements AppRTCClient,
     executor.execute(new Runnable() {
       @Override
       public void run() {
-        if (loopback) {
+        if (connectionParameters.loopback) {
           Log.e(TAG, "Sending answer in loopback mode.");
           return;
         }
@@ -267,8 +262,8 @@ public class WebSocketRTCClient implements AppRTCClient,
             reportError("Sending ICE candidate in non connected state.");
             return;
           }
-          sendPostMessage(MessageType.MESSAGE, postMessageUrl, json.toString());
-          if (loopback) {
+          sendPostMessage(MessageType.MESSAGE, messageUrl, json.toString());
+          if (connectionParameters.loopback) {
             events.onRemoteIceCandidate(candidate);
           }
         } else {
@@ -384,11 +379,11 @@ public class WebSocketRTCClient implements AppRTCClient,
   // Send SDP or ICE candidate to a room server.
   private void sendPostMessage(
       final MessageType messageType, final String url, final String message) {
-    if (messageType == MessageType.BYE) {
-      Log.d(TAG, "C->GAE: " + url);
-    } else {
-      Log.d(TAG, "C->GAE: " + message);
+    String logInfo = url;
+    if (message != null) {
+      logInfo += ". Message: " + message;
     }
+    Log.d(TAG, "C->GAE: " + logInfo);
     AsyncHttpURLConnection httpConnection = new AsyncHttpURLConnection(
       "POST", url, message, new AsyncHttpEvents() {
         @Override
diff --git a/talk/examples/android/src/org/appspot/apprtc/util/AsyncHttpURLConnection.java b/talk/examples/android/src/org/appspot/apprtc/util/AsyncHttpURLConnection.java
index 4c71cde7b..120644c5d 100644
--- a/talk/examples/android/src/org/appspot/apprtc/util/AsyncHttpURLConnection.java
+++ b/talk/examples/android/src/org/appspot/apprtc/util/AsyncHttpURLConnection.java
@@ -36,7 +36,7 @@ import java.net.URL;
 import java.util.Scanner;
 
 /**
- * Asynchronious http requests implementation.
+ * Asynchronous http requests implementation.
  */
 public class AsyncHttpURLConnection {
   private static final int HTTP_TIMEOUT_MS = 5000;
diff --git a/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java b/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
index cb8e76cea..a49bf3c9b 100644
--- a/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
+++ b/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
@@ -35,11 +35,13 @@ import java.util.concurrent.TimeUnit;
 import org.appspot.apprtc.AppRTCClient.SignalingParameters;
 import org.appspot.apprtc.PeerConnectionClient;
 import org.appspot.apprtc.PeerConnectionClient.PeerConnectionEvents;
+import org.appspot.apprtc.PeerConnectionClient.PeerConnectionParameters;
 import org.appspot.apprtc.util.LooperExecutor;
 import org.webrtc.IceCandidate;
 import org.webrtc.MediaConstraints;
 import org.webrtc.PeerConnection;
 import org.webrtc.SessionDescription;
+import org.webrtc.StatsReport;
 import org.webrtc.VideoRenderer;
 
 import android.test.InstrumentationTestCase;
@@ -167,6 +169,10 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
     fail("PC Error: " + description);
   }
 
+  @Override
+  public void onPeerConnectionStatsReady(StatsReport[] reports) {
+  }
+
   // Helper wait functions.
   private boolean waitForLocalSDP(int timeoutMs)
       throws InterruptedException {
@@ -220,8 +226,7 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
     SignalingParameters signalingParameters = new SignalingParameters(
         iceServers, true,
         pcConstraints, videoConstraints, audioConstraints,
-        null, null,
-        null, null,
+        null, null, null,
         null, null);
     return signalingParameters;
   }
@@ -229,12 +234,14 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
   PeerConnectionClient createPeerConnectionClient(MockRenderer localRenderer,
                                                   MockRenderer remoteRenderer) {
     SignalingParameters signalingParameters = getTestSignalingParameters();
+    PeerConnectionParameters peerConnectionParameters =
+        new PeerConnectionParameters(0, 0, 0, 0, false);
 
     PeerConnectionClient client = new PeerConnectionClient();
     client.createPeerConnectionFactory(
         getInstrumentation().getContext(), "VP8", true, null, this);
-    client.createPeerConnection(
-        localRenderer, remoteRenderer, signalingParameters, 1000);
+    client.createPeerConnection(localRenderer, remoteRenderer,
+        signalingParameters, peerConnectionParameters);
     client.createOffer();
     return client;
   }
@@ -313,4 +320,5 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
     assertTrue(waitForPeerConnectionClosed(WAIT_TIMEOUT));
     Log.d(TAG, "testLoopback Done.");
   }
+
 }
diff --git a/talk/libjingle_examples.gyp b/talk/libjingle_examples.gyp
index c136ca845..b31eeb3ac 100755
--- a/talk/libjingle_examples.gyp
+++ b/talk/libjingle_examples.gyp
@@ -355,17 +355,18 @@
                 'examples/android/res/drawable-xhdpi/ic_action_return_from_full_screen.png',
                 'examples/android/res/drawable-xhdpi/ic_loopback_call.png',
                 'examples/android/res/drawable-xhdpi/ic_launcher.png',
+                'examples/android/res/layout/activity_call.xml',
                 'examples/android/res/layout/activity_connect.xml',
-                'examples/android/res/layout/activity_fullscreen.xml',
-                'examples/android/res/layout/fragment_menubar.xml',
+                'examples/android/res/layout/fragment_call.xml',
                 'examples/android/res/menu/connect_menu.xml',
                 'examples/android/res/values/arrays.xml',
                 'examples/android/res/values/strings.xml',
                 'examples/android/res/xml/preferences.xml',
                 'examples/android/src/org/appspot/apprtc/AppRTCAudioManager.java',
                 'examples/android/src/org/appspot/apprtc/AppRTCClient.java',
-                'examples/android/src/org/appspot/apprtc/AppRTCDemoActivity.java',
                 'examples/android/src/org/appspot/apprtc/AppRTCProximitySensor.java',
+                'examples/android/src/org/appspot/apprtc/CallActivity.java',
+                'examples/android/src/org/appspot/apprtc/CallFragment.java',
                 'examples/android/src/org/appspot/apprtc/ConnectActivity.java',
                 'examples/android/src/org/appspot/apprtc/PeerConnectionClient.java',
                 'examples/android/src/org/appspot/apprtc/RoomParametersFetcher.java',