Telecom API updates (1/6)

Bug: 18292176

Change-Id: I060366234a5a60510c385dc837f2b7e79596eaf5

15 files changed, 644 insertions, 331 deletions

diff --git a/telecomm/java/android/telecom/AudioState.java b/telecomm/java/android/telecom/AudioState.java
index f78ce29..bd63e00 100644
--- a/telecomm/java/android/telecom/AudioState.java
+++ b/telecomm/java/android/telecom/AudioState.java
@@ -54,25 +54,25 @@ public final class AudioState implements Parcelable {
     public static final int ROUTE_ALL = ROUTE_EARPIECE | ROUTE_BLUETOOTH | ROUTE_WIRED_HEADSET |
             ROUTE_SPEAKER;
 
-    /** True if the call is muted, false otherwise. */
-    public final boolean isMuted;
+    /** @hide */
+    @Deprecated public final boolean isMuted;
 
-    /** The current audio route being used. */
-    public final int route;
+    /** @hide */
+    @Deprecated public final int route;
 
-    /** Bit mask of all routes supported by this call. */
-    public final int supportedRouteMask;
+    /** @hide */
+    @Deprecated public final int supportedRouteMask;
 
-    public AudioState(boolean isMuted, int route, int supportedRouteMask) {
-        this.isMuted = isMuted;
+    public AudioState(boolean muted, int route, int supportedRouteMask) {
+        this.isMuted = muted;
         this.route = route;
         this.supportedRouteMask = supportedRouteMask;
     }
 
     public AudioState(AudioState state) {
-        isMuted = state.isMuted;
-        route = state.route;
-        supportedRouteMask = state.supportedRouteMask;
+        isMuted = state.isMuted();
+        route = state.getRoute();
+        supportedRouteMask = state.getSupportedRouteMask();
     }
 
     @Override
@@ -84,15 +84,17 @@ public final class AudioState implements Parcelable {
             return false;
         }
         AudioState state = (AudioState) obj;
-        return isMuted == state.isMuted && route == state.route &&
-                supportedRouteMask == state.supportedRouteMask;
+        return isMuted() == state.isMuted() && getRoute() == state.getRoute() &&
+                getSupportedRouteMask() == state.getSupportedRouteMask();
     }
 
     @Override
     public String toString() {
         return String.format(Locale.US,
                 "[AudioState isMuted: %b, route; %s, supportedRouteMask: %s]",
-                isMuted, audioRouteToString(route), audioRouteToString(supportedRouteMask));
+                isMuted,
+                audioRouteToString(route),
+                audioRouteToString(supportedRouteMask));
     }
 
     /** @hide */
@@ -162,4 +164,25 @@ public final class AudioState implements Parcelable {
         destination.writeInt(route);
         destination.writeInt(supportedRouteMask);
     }
+
+    /**
+     * @return {@code true} if the call is muted, false otherwise.
+     */
+    public boolean isMuted() {
+        return isMuted;
+    }
+
+    /**
+     * @return The current audio route being used.
+     */
+    public int getRoute() {
+        return route;
+    }
+
+    /**
+     * @return Bit mask of all routes supported by this call.
+     */
+    public int getSupportedRouteMask() {
+        return supportedRouteMask;
+    }
 }
diff --git a/telecomm/java/android/telecom/Call.java b/telecomm/java/android/telecom/Call.java
index 354fa2e..7df40f1 100644
--- a/telecomm/java/android/telecom/Call.java
+++ b/telecomm/java/android/telecom/Call.java
@@ -97,6 +97,91 @@ public final class Call {
     public static final String AVAILABLE_PHONE_ACCOUNTS = "selectPhoneAccountAccounts";
 
     public static class Details {
+
+        /** Call can currently be put on hold or unheld. */
+        public static final int CAPABILITY_HOLD = 0x00000001;
+
+        /** Call supports the hold feature. */
+        public static final int CAPABILITY_SUPPORT_HOLD = 0x00000002;
+
+        /**
+         * Calls within a conference can be merged. A {@link ConnectionService} has the option to
+         * add a {@link Conference} call before the child {@link Connection}s are merged. This is how
+         * CDMA-based {@link Connection}s are implemented. For these unmerged {@link Conference}s, this
+         * capability allows a merge button to be shown while the conference call is in the foreground
+         * of the in-call UI.
+         * <p>
+         * This is only intended for use by a {@link Conference}.
+         */
+        public static final int CAPABILITY_MERGE_CONFERENCE = 0x00000004;
+
+        /**
+         * Calls within a conference can be swapped between foreground and background.
+         * See {@link #CAPABILITY_MERGE_CONFERENCE} for additional information.
+         * <p>
+         * This is only intended for use by a {@link Conference}.
+         */
+        public static final int CAPABILITY_SWAP_CONFERENCE = 0x00000008;
+
+        /**
+         * @hide
+         */
+        public static final int CAPABILITY_UNUSED = 0x00000010;
+
+        /** Call supports responding via text option. */
+        public static final int CAPABILITY_RESPOND_VIA_TEXT = 0x00000020;
+
+        /** Call can be muted. */
+        public static final int CAPABILITY_MUTE = 0x00000040;
+
+        /**
+         * Call supports conference call management. This capability only applies to {@link Conference}
+         * calls which can have {@link Connection}s as children.
+         */
+        public static final int CAPABILITY_MANAGE_CONFERENCE = 0x00000080;
+
+        /**
+         * Local device supports video telephony.
+         * @hide
+         */
+        public static final int CAPABILITY_SUPPORTS_VT_LOCAL = 0x00000100;
+
+        /**
+         * Remote device supports video telephony.
+         * @hide
+         */
+        public static final int CAPABILITY_SUPPORTS_VT_REMOTE = 0x00000200;
+
+        /**
+         * Call is using voice over LTE.
+         * @hide
+         */
+        public static final int CAPABILITY_VoLTE = 0x00000400;
+
+        /**
+         * Call is using voice over WIFI.
+         * @hide
+         */
+        public static final int CAPABILITY_VoWIFI = 0x00000800;
+
+        /**
+         * Call is able to be separated from its parent {@code Conference}, if any.
+         */
+        public static final int CAPABILITY_SEPARATE_FROM_CONFERENCE = 0x00001000;
+
+        /**
+         * Call is able to be individually disconnected when in a {@code Conference}.
+         */
+        public static final int CAPABILITY_DISCONNECT_FROM_CONFERENCE = 0x00002000;
+
+        /**
+         * Whether the call is a generic conference, where we do not know the precise state of
+         * participants in the conference (eg. on CDMA).
+         *
+         * @hide
+         */
+        public static final int CAPABILITY_GENERIC_CONFERENCE = 0x00004000;
+
         private final Uri mHandle;
         private final int mHandlePresentation;
         private final String mCallerDisplayName;
@@ -112,6 +197,78 @@ public final class Call {
         private final Bundle mExtras;
 
         /**
+         * Whether the supplied capabilities  supports the specified capability.
+         *
+         * @param capabilities A bit field of capabilities.
+         * @param capability The capability to check capabilities for.
+         * @return Whether the specified capability is supported.
+         * @hide
+         */
+        public static boolean can(int capabilities, int capability) {
+            return (capabilities & capability) != 0;
+        }
+
+        /**
+         * Whether the capabilities of this {@code Details} supports the specified capability.
+         *
+         * @param capability The capability to check capabilities for.
+         * @return Whether the specified capability is supported.
+         * @hide
+         */
+        public boolean can(int capability) {
+            return can(mCallCapabilities, capability);
+        }
+
+        /**
+         * Render a set of capability bits ({@code CAPABILITY_*}) as a human readable string.
+         *
+         * @param capabilities A capability bit field.
+         * @return A human readable string representation.
+         */
+        public static String capabilitiesToString(int capabilities) {
+            StringBuilder builder = new StringBuilder();
+            builder.append("[Capabilities:");
+            if (can(capabilities, CAPABILITY_HOLD)) {
+                builder.append(" CAPABILITY_HOLD");
+            }
+            if (can(capabilities, CAPABILITY_SUPPORT_HOLD)) {
+                builder.append(" CAPABILITY_SUPPORT_HOLD");
+            }
+            if (can(capabilities, CAPABILITY_MERGE_CONFERENCE)) {
+                builder.append(" CAPABILITY_MERGE_CONFERENCE");
+            }
+            if (can(capabilities, CAPABILITY_SWAP_CONFERENCE)) {
+                builder.append(" CAPABILITY_SWAP_CONFERENCE");
+            }
+            if (can(capabilities, CAPABILITY_RESPOND_VIA_TEXT)) {
+                builder.append(" CAPABILITY_RESPOND_VIA_TEXT");
+            }
+            if (can(capabilities, CAPABILITY_MUTE)) {
+                builder.append(" CAPABILITY_MUTE");
+            }
+            if (can(capabilities, CAPABILITY_MANAGE_CONFERENCE)) {
+                builder.append(" CAPABILITY_MANAGE_CONFERENCE");
+            }
+            if (can(capabilities, CAPABILITY_SUPPORTS_VT_LOCAL)) {
+                builder.append(" CAPABILITY_SUPPORTS_VT_LOCAL");
+            }
+            if (can(capabilities, CAPABILITY_SUPPORTS_VT_REMOTE)) {
+                builder.append(" CAPABILITY_SUPPORTS_VT_REMOTE");
+            }
+            if (can(capabilities, CAPABILITY_VoLTE)) {
+                builder.append(" CAPABILITY_VoLTE");
+            }
+            if (can(capabilities, CAPABILITY_VoWIFI)) {
+                builder.append(" CAPABILITY_VoWIFI");
+            }
+            if (can(capabilities, CAPABILITY_GENERIC_CONFERENCE)) {
+                builder.append(" CAPABILITY_GENERIC_CONFERENCE");
+            }
+            builder.append("]");
+            return builder.toString();
+        }
+
+        /**
          * @return The handle (e.g., phone number) to which the {@code Call} is currently
          * connected.
          */
@@ -151,8 +308,8 @@ public final class Call {
         }
 
         /**
-         * @return A bitmask of the capabilities of the {@code Call}, as defined in
-         *         {@link PhoneCapabilities}.
+         * @return A bitmask of the capabilities of the {@code Call}, as defined by the various
+         *         {@code CAPABILITY_*} constants in this class.
          */
         public int getCallCapabilities() {
             return mCallCapabilities;
@@ -511,14 +668,14 @@ public final class Call {
     }
 
     /**
-     * Merges the calls within this conference. See {@link PhoneCapabilities#MERGE_CONFERENCE}.
+     * Merges the calls within this conference. See {@link Details#CAPABILITY_MERGE_CONFERENCE}.
      */
     public void mergeConference() {
         mInCallAdapter.mergeConference(mTelecomCallId);
     }
 
     /**
-     * Swaps the calls within this conference. See {@link PhoneCapabilities#SWAP_CONFERENCE}.
+     * Swaps the calls within this conference. See {@link Details#CAPABILITY_SWAP_CONFERENCE}.
      */
     public void swapConference() {
         mInCallAdapter.swapConference(mTelecomCallId);
diff --git a/telecomm/java/android/telecom/Conference.java b/telecomm/java/android/telecom/Conference.java
index 6e404de..5371481 100644
--- a/telecomm/java/android/telecom/Conference.java
+++ b/telecomm/java/android/telecom/Conference.java
@@ -41,7 +41,8 @@ public abstract class Conference implements IConferenceable {
         public void onConferenceableConnectionsChanged(
                 Conference conference, List<Connection> conferenceableConnections) {}
         public void onDestroyed(Conference conference) {}
-        public void onCapabilitiesChanged(Conference conference, int capabilities) {}
+        public void onConnectionCapabilitiesChanged(
+                Conference conference, int connectionCapabilities) {}
     }
 
     private final Set<Listener> mListeners = new CopyOnWriteArraySet<>();
@@ -56,7 +57,7 @@ public abstract class Conference implements IConferenceable {
     private AudioState mAudioState;
     private int mState = Connection.STATE_NEW;
     private DisconnectCause mDisconnectCause;
-    private int mCapabilities;
+    private int mConnectionCapabilities;
     private String mDisconnectMessage;
 
     private final Connection.Listener mConnectionDeathListener = new Connection.Listener() {
@@ -104,13 +105,62 @@ public abstract class Conference implements IConferenceable {
         return mState;
     }
 
+    /** @hide */
+    @Deprecated public final int getCapabilities() {
+        return getConnectionCapabilities();
+    }
+
+    /**
+     * Returns the capabilities of a conference. See {@code CAPABILITY_*} constants in class
+     * {@link Connection} for valid values.
+     *
+     * @return A bitmask of the capabilities of the conference call.
+     */
+    public final int getConnectionCapabilities() {
+        return mConnectionCapabilities;
+    }
+
+    /**
+     * Whether the given capabilities support the specified capability.
+     *
+     * @param capabilities A capability bit field.
+     * @param capability The capability to check capabilities for.
+     * @return Whether the specified capability is supported.
+     * @hide
+     */
+    public static boolean can(int capabilities, int capability) {
+        return (capabilities & capability) != 0;
+    }
+
+    /**
+     * Whether the capabilities of this {@code Connection} supports the specified capability.
+     *
+     * @param capability The capability to check capabilities for.
+     * @return Whether the specified capability is supported.
+     * @hide
+     */
+    public boolean can(int capability) {
+        return can(mConnectionCapabilities, capability);
+    }
+
     /**
-     * Returns the capabilities of a conference. See {@link PhoneCapabilities} for valid values.
+     * Removes the specified capability from the set of capabilities of this {@code Conference}.
      *
-     * @return A bitmask of the {@code PhoneCapabilities} of the conference call.
+     * @param capability The capability to remove from the set.
+     * @hide
      */
-    public final int getCapabilities() {
-        return mCapabilities;
+    public void removeCapability(int capability) {
+        mConnectionCapabilities &= ~capability;
+    }
+
+    /**
+     * Adds the specified capability to the set of capabilities of this {@code Conference}.
+     *
+     * @param capability The capability to add to the set.
+     * @hide
+     */
+    public void addCapability(int capability) {
+        mConnectionCapabilities |= capability;
     }
 
     /**
@@ -153,13 +203,13 @@ public abstract class Conference implements IConferenceable {
 
     /**
      * Invoked when the child calls should be merged. Only invoked if the conference contains the
-     * capability {@link PhoneCapabilities#MERGE_CONFERENCE}.
+     * capability {@link Connection#CAPABILITY_MERGE_CONFERENCE}.
      */
     public void onMerge() {}
 
     /**
      * Invoked when the child calls should be swapped. Only invoked if the conference contains the
-     * capability {@link PhoneCapabilities#SWAP_CONFERENCE}.
+     * capability {@link Connection#CAPABILITY_SWAP_CONFERENCE}.
      */
     public void onSwap() {}
 
@@ -224,17 +274,23 @@ public abstract class Conference implements IConferenceable {
         return mDisconnectCause;
     }
 
+    /** @hide */
+    @Deprecated public final void setCapabilities(int connectionCapabilities) {
+        setConnectionCapabilities(connectionCapabilities);
+    }
+
     /**
-     * Sets the capabilities of a conference. See {@link PhoneCapabilities} for valid values.
+     * Sets the capabilities of a conference. See {@code CAPABILITY_*} constants of class
+     * {@link Connection} for valid values.
      *
-     * @param capabilities A bitmask of the {@code PhoneCapabilities} of the conference call.
+     * @param connectionCapabilities A bitmask of the {@code PhoneCapabilities} of the conference call.
      */
-    public final void setCapabilities(int capabilities) {
-        if (capabilities != mCapabilities) {
-            mCapabilities = capabilities;
+    public final void setConnectionCapabilities(int connectionCapabilities) {
+        if (connectionCapabilities != mConnectionCapabilities) {
+            mConnectionCapabilities = connectionCapabilities;
 
             for (Listener l : mListeners) {
-                l.onCapabilitiesChanged(this, mCapabilities);
+                l.onConnectionCapabilitiesChanged(this, mConnectionCapabilities);
             }
         }
     }
diff --git a/telecomm/java/android/telecom/Connection.java b/telecomm/java/android/telecom/Connection.java
index fb63c85..125ada0 100644
--- a/telecomm/java/android/telecom/Connection.java
+++ b/telecomm/java/android/telecom/Connection.java
@@ -63,9 +63,180 @@ public abstract class Connection implements IConferenceable {
 
     public static final int STATE_DISCONNECTED = 6;
 
+    /** Connection can currently be put on hold or unheld. */
+    public static final int CAPABILITY_HOLD = 0x00000001;
+
+    /** Connection supports the hold feature. */
+    public static final int CAPABILITY_SUPPORT_HOLD = 0x00000002;
+
+    /**
+     * Connections within a conference can be merged. A {@link ConnectionService} has the option to
+     * add a {@link Conference} before the child {@link Connection}s are merged. This is how
+     * CDMA-based {@link Connection}s are implemented. For these unmerged {@link Conference}s, this
+     * capability allows a merge button to be shown while the conference is in the foreground
+     * of the in-call UI.
+     * <p>
+     * This is only intended for use by a {@link Conference}.
+     */
+    public static final int CAPABILITY_MERGE_CONFERENCE = 0x00000004;
+
+    /**
+     * Connections within a conference can be swapped between foreground and background.
+     * See {@link #CAPABILITY_MERGE_CONFERENCE} for additional information.
+     * <p>
+     * This is only intended for use by a {@link Conference}.
+     */
+    public static final int CAPABILITY_SWAP_CONFERENCE = 0x00000008;
+
+    /**
+     * @hide
+     */
+    public static final int CAPABILITY_UNUSED = 0x00000010;
+
+    /** Connection supports responding via text option. */
+    public static final int CAPABILITY_RESPOND_VIA_TEXT = 0x00000020;
+
+    /** Connection can be muted. */
+    public static final int CAPABILITY_MUTE = 0x00000040;
+
+    /**
+     * Connection supports conference management. This capability only applies to
+     * {@link Conference}s which can have {@link Connection}s as children.
+     */
+    public static final int CAPABILITY_MANAGE_CONFERENCE = 0x00000080;
+
+    /**
+     * Local device supports video telephony.
+     * @hide
+     */
+    public static final int CAPABILITY_SUPPORTS_VT_LOCAL = 0x00000100;
+
+    /**
+     * Remote device supports video telephony.
+     * @hide
+     */
+    public static final int CAPABILITY_SUPPORTS_VT_REMOTE = 0x00000200;
+
+    /**
+     * Connection is using voice over LTE.
+     * @hide
+     */
+    public static final int CAPABILITY_VoLTE = 0x00000400;
+
+    /**
+     * Connection is using voice over WIFI.
+     * @hide
+     */
+    public static final int CAPABILITY_VoWIFI = 0x00000800;
+
+    /**
+     * Connection is able to be separated from its parent {@code Conference}, if any.
+     */
+    public static final int CAPABILITY_SEPARATE_FROM_CONFERENCE = 0x00001000;
+
+    /**
+     * Connection is able to be individually disconnected when in a {@code Conference}.
+     */
+    public static final int CAPABILITY_DISCONNECT_FROM_CONFERENCE = 0x00002000;
+
+    /**
+     * Whether the call is a generic conference, where we do not know the precise state of
+     * participants in the conference (eg. on CDMA).
+     *
+     * @hide
+     */
+    public static final int CAPABILITY_GENERIC_CONFERENCE = 0x00004000;
+
     // Flag controlling whether PII is emitted into the logs
     private static final boolean PII_DEBUG = Log.isLoggable(android.util.Log.DEBUG);
 
+    /**
+     * Whether the given capabilities support the specified capability.
+     *
+     * @param capabilities A capability bit field.
+     * @param capability The capability to check capabilities for.
+     * @return Whether the specified capability is supported.
+     * @hide
+     */
+    public static boolean can(int capabilities, int capability) {
+        return (capabilities & capability) != 0;
+    }
+
+    /**
+     * Whether the capabilities of this {@code Connection} supports the specified capability.
+     *
+     * @param capability The capability to check capabilities for.
+     * @return Whether the specified capability is supported.
+     * @hide
+     */
+    public boolean can(int capability) {
+        return can(mConnectionCapabilities, capability);
+    }
+
+    /**
+     * Removes the specified capability from the set of capabilities of this {@code Connection}.
+     *
+     * @param capability The capability to remove from the set.
+     * @hide
+     */
+    public void removeCapability(int capability) {
+        mConnectionCapabilities &= ~capability;
+    }
+
+    /**
+     * Adds the specified capability to the set of capabilities of this {@code Connection}.
+     *
+     * @param capability The capability to add to the set.
+     * @hide
+     */
+    public void addCapability(int capability) {
+        mConnectionCapabilities |= capability;
+    }
+
+
+    public static String capabilitiesToString(int capabilities) {
+        StringBuilder builder = new StringBuilder();
+        builder.append("[Capabilities:");
+        if (can(capabilities, CAPABILITY_HOLD)) {
+            builder.append(" CAPABILITY_HOLD");
+        }
+        if (can(capabilities, CAPABILITY_SUPPORT_HOLD)) {
+            builder.append(" CAPABILITY_SUPPORT_HOLD");
+        }
+        if (can(capabilities, CAPABILITY_MERGE_CONFERENCE)) {
+            builder.append(" CAPABILITY_MERGE_CONFERENCE");
+        }
+        if (can(capabilities, CAPABILITY_SWAP_CONFERENCE)) {
+            builder.append(" CAPABILITY_SWAP_CONFERENCE");
+        }
+        if (can(capabilities, CAPABILITY_RESPOND_VIA_TEXT)) {
+            builder.append(" CAPABILITY_RESPOND_VIA_TEXT");
+        }
+        if (can(capabilities, CAPABILITY_MUTE)) {
+            builder.append(" CAPABILITY_MUTE");
+        }
+        if (can(capabilities, CAPABILITY_MANAGE_CONFERENCE)) {
+            builder.append(" CAPABILITY_MANAGE_CONFERENCE");
+        }
+        if (can(capabilities, CAPABILITY_SUPPORTS_VT_LOCAL)) {
+            builder.append(" CAPABILITY_SUPPORTS_VT_LOCAL");
+        }
+        if (can(capabilities, CAPABILITY_SUPPORTS_VT_REMOTE)) {
+            builder.append(" CAPABILITY_SUPPORTS_VT_REMOTE");
+        }
+        if (can(capabilities, CAPABILITY_VoLTE)) {
+            builder.append(" CAPABILITY_VoLTE");
+        }
+        if (can(capabilities, CAPABILITY_VoWIFI)) {
+            builder.append(" CAPABILITY_VoWIFI");
+        }
+        if (can(capabilities, CAPABILITY_GENERIC_CONFERENCE)) {
+            builder.append(" CAPABILITY_GENERIC_CONFERENCE");
+        }
+        builder.append("]");
+        return builder.toString();
+    }
+
     /** @hide */
     public abstract static class Listener {
         public void onStateChanged(Connection c, int state) {}
@@ -77,7 +248,7 @@ public abstract class Connection implements IConferenceable {
         public void onPostDialWait(Connection c, String remaining) {}
         public void onRingbackRequested(Connection c, boolean ringback) {}
         public void onDestroyed(Connection c) {}
-        public void onCallCapabilitiesChanged(Connection c, int callCapabilities) {}
+        public void onConnectionCapabilitiesChanged(Connection c, int capabilities) {}
         public void onVideoProviderChanged(
                 Connection c, VideoProvider videoProvider) {}
         public void onAudioModeIsVoipChanged(Connection c, boolean isVoip) {}
@@ -152,7 +323,7 @@ public abstract class Connection implements IConferenceable {
         private static final int MSG_SEND_SESSION_MODIFY_REQUEST = 7;
         private static final int MSG_SEND_SESSION_MODIFY_RESPONSE = 8;
         private static final int MSG_REQUEST_CAMERA_CAPABILITIES = 9;
-        private static final int MSG_REQUEST_CALL_DATA_USAGE = 10;
+        private static final int MSG_REQUEST_CONNECTION_DATA_USAGE = 10;
         private static final int MSG_SET_PAUSE_IMAGE = 11;
 
         private final VideoProvider.VideoProviderHandler
@@ -194,8 +365,8 @@ public abstract class Connection implements IConferenceable {
                     case MSG_REQUEST_CAMERA_CAPABILITIES:
                         onRequestCameraCapabilities();
                         break;
-                    case MSG_REQUEST_CALL_DATA_USAGE:
-                        onRequestCallDataUsage();
+                    case MSG_REQUEST_CONNECTION_DATA_USAGE:
+                        onRequestConnectionDataUsage();
                         break;
                     case MSG_SET_PAUSE_IMAGE:
                         onSetPauseImage((String) msg.obj);
@@ -250,7 +421,7 @@ public abstract class Connection implements IConferenceable {
             }
 
             public void requestCallDataUsage() {
-                mMessageHandler.obtainMessage(MSG_REQUEST_CALL_DATA_USAGE).sendToTarget();
+                mMessageHandler.obtainMessage(MSG_REQUEST_CONNECTION_DATA_USAGE).sendToTarget();
             }
 
             public void setPauseImage(String uri) {
@@ -271,7 +442,7 @@ public abstract class Connection implements IConferenceable {
         }
 
         /**
-         * Sets the camera to be used for video recording in a video call.
+         * Sets the camera to be used for video recording in a video connection.
          *
          * @param cameraId The id of the camera.
          */
@@ -311,19 +482,19 @@ public abstract class Connection implements IConferenceable {
         /**
          * Issues a request to modify the properties of the current session.  The request is
          * sent to the remote device where it it handled by the In-Call UI.
-         * Some examples of session modification requests: upgrade call from audio to video,
-         * downgrade call from video to audio, pause video.
+         * Some examples of session modification requests: upgrade connection from audio to video,
+         * downgrade connection from video to audio, pause video.
          *
-         * @param requestProfile The requested call video properties.
+         * @param requestProfile The requested connection video properties.
          */
         public abstract void onSendSessionModifyRequest(VideoProfile requestProfile);
 
         /**te
-         * Provides a response to a request to change the current call session video
+         * Provides a response to a request to change the current connection session video
          * properties.
          * This is in response to a request the InCall UI has received via the InCall UI.
          *
-         * @param responseProfile The response call video properties.
+         * @param responseProfile The response connection video properties.
          */
         public abstract void onSendSessionModifyResponse(VideoProfile responseProfile);
 
@@ -335,10 +506,10 @@ public abstract class Connection implements IConferenceable {
 
         /**
          * Issues a request to the video telephony framework to retrieve the cumulative data usage
-         * for the current call.  Data usage is reported back to the caller via the
+         * for the current connection.  Data usage is reported back to the caller via the
          * InCall UI.
          */
-        public abstract void onRequestCallDataUsage();
+        public abstract void onRequestConnectionDataUsage();
 
         /**
          * Provides the video telephony framework with the URI of an image to be displayed to remote
@@ -351,7 +522,7 @@ public abstract class Connection implements IConferenceable {
         /**
          * Invokes callback method defined in In-Call UI.
          *
-         * @param videoProfile The requested video call profile.
+         * @param videoProfile The requested video connection profile.
          */
         public void receiveSessionModifyRequest(VideoProfile videoProfile) {
             if (mVideoCallback != null) {
@@ -482,7 +653,7 @@ public abstract class Connection implements IConferenceable {
     private String mCallerDisplayName;
     private int mCallerDisplayNamePresentation;
     private boolean mRingbackRequested = false;
-    private int mCallCapabilities;
+    private int mConnectionCapabilities;
     private VideoProvider mVideoProvider;
     private boolean mAudioModeIsVoip;
     private StatusHints mStatusHints;
@@ -534,13 +705,13 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
-     * Returns the video state of the call.
+     * Returns the video state of the connection.
      * Valid values: {@link VideoProfile.VideoState#AUDIO_ONLY},
      * {@link VideoProfile.VideoState#BIDIRECTIONAL},
      * {@link VideoProfile.VideoState#TX_ENABLED},
      * {@link VideoProfile.VideoState#RX_ENABLED}.
      *
-     * @return The video state of the call.
+     * @return The video state of the connection.
      * @hide
      */
     public final int getVideoState() {
@@ -548,7 +719,7 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
-     * @return The audio state of the call, describing how its audio is currently
+     * @return The audio state of the connection, describing how its audio is currently
      *         being routed by the system. This is {@code null} if this Connection
      *         does not directly know about its audio state.
      */
@@ -628,6 +799,7 @@ public abstract class Connection implements IConferenceable {
      * @hide
      */
     final void setAudioState(AudioState state) {
+        checkImmutable();
         Log.d(this, "setAudioState %s", state);
         mAudioState = state;
         onAudioStateChanged(state);
@@ -660,10 +832,10 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
-     * Returns the connection's {@link PhoneCapabilities}
+     * Returns the connection's capabilities, as a bit mask of the {@code CAPABILITY_*} constants.
      */
-    public final int getCallCapabilities() {
-        return mCallCapabilities;
+    public final int getConnectionCapabilities() {
+        return mConnectionCapabilities;
     }
 
     /**
@@ -674,6 +846,7 @@ public abstract class Connection implements IConferenceable {
      *        See {@link TelecomManager} for valid values.
      */
     public final void setAddress(Uri address, int presentation) {
+        checkImmutable();
         Log.d(this, "setAddress %s", address);
         mAddress = address;
         mAddressPresentation = presentation;
@@ -690,6 +863,7 @@ public abstract class Connection implements IConferenceable {
      *        See {@link TelecomManager} for valid values.
      */
     public final void setCallerDisplayName(String callerDisplayName, int presentation) {
+        checkImmutable();
         Log.d(this, "setCallerDisplayName %s", callerDisplayName);
         mCallerDisplayName = callerDisplayName;
         mCallerDisplayNamePresentation = presentation;
@@ -709,6 +883,7 @@ public abstract class Connection implements IConferenceable {
      * @hide
      */
     public final void setVideoState(int videoState) {
+        checkImmutable();
         Log.d(this, "setVideoState %d", videoState);
         mVideoState = videoState;
         for (Listener l : mListeners) {
@@ -717,18 +892,20 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
-     * Sets state to active (e.g., an ongoing call where two or more parties can actively
+     * Sets state to active (e.g., an ongoing connection where two or more parties can actively
      * communicate).
      */
     public final void setActive() {
+        checkImmutable();
         setRingbackRequested(false);
         setState(STATE_ACTIVE);
     }
 
     /**
-     * Sets state to ringing (e.g., an inbound ringing call).
+     * Sets state to ringing (e.g., an inbound ringing connection).
      */
     public final void setRinging() {
+        checkImmutable();
         setState(STATE_RINGING);
     }
 
@@ -736,6 +913,7 @@ public abstract class Connection implements IConferenceable {
      * Sets state to initializing (this Connection is not yet ready to be used).
      */
     public final void setInitializing() {
+        checkImmutable();
         setState(STATE_INITIALIZING);
     }
 
@@ -743,13 +921,15 @@ public abstract class Connection implements IConferenceable {
      * Sets state to initialized (the Connection has been set up and is now ready to be used).
      */
     public final void setInitialized() {
+        checkImmutable();
         setState(STATE_NEW);
     }
 
     /**
-     * Sets state to dialing (e.g., dialing an outbound call).
+     * Sets state to dialing (e.g., dialing an outbound connection).
      */
     public final void setDialing() {
+        checkImmutable();
         setState(STATE_DIALING);
     }
 
@@ -757,15 +937,17 @@ public abstract class Connection implements IConferenceable {
      * Sets state to be on hold.
      */
     public final void setOnHold() {
+        checkImmutable();
         setState(STATE_HOLDING);
     }
 
     /**
-     * Sets the video call provider.
+     * Sets the video connection provider.
      * @param videoProvider The video provider.
      * @hide
      */
     public final void setVideoProvider(VideoProvider videoProvider) {
+        checkImmutable();
         mVideoProvider = videoProvider;
         for (Listener l : mListeners) {
             l.onVideoProviderChanged(this, videoProvider);
@@ -784,6 +966,7 @@ public abstract class Connection implements IConferenceable {
      *         {@link DisconnectCause}.
      */
     public final void setDisconnected(DisconnectCause disconnectCause) {
+        checkImmutable();
         mDisconnectCause = disconnectCause;
         setState(STATE_DISCONNECTED);
         Log.d(this, "Disconnected with cause %s", disconnectCause);
@@ -793,9 +976,17 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
-     * TODO: Needs documentation.
+     * Informs listeners that this {@code Connection} is in a post-dial wait state. This is done
+     * when (a) the {@code Connection} is issuing a DTMF sequence; (b) it has encountered a "wait"
+     * character; and (c) it wishes to inform the In-Call app that it is waiting for the end-user
+     * to send an {@link #onPostDialContinue(boolean)} signal.
+     *
+     * @param remaining The DTMF character sequence remaining to be emitted once the
+     *         {@link #onPostDialContinue(boolean)} is received, including any "wait" characters
+     *         that remaining sequence may contain.
      */
     public final void setPostDialWait(String remaining) {
+        checkImmutable();
         for (Listener l : mListeners) {
             l.onPostDialWait(this, remaining);
         }
@@ -803,11 +994,12 @@ public abstract class Connection implements IConferenceable {
 
     /**
      * Requests that the framework play a ringback tone. This is to be invoked by implementations
-     * that do not play a ringback tone themselves in the call's audio stream.
+     * that do not play a ringback tone themselves in the connection's audio stream.
      *
      * @param ringback Whether the ringback tone is to be played.
      */
     public final void setRingbackRequested(boolean ringback) {
+        checkImmutable();
         if (mRingbackRequested != ringback) {
             mRingbackRequested = ringback;
             for (Listener l : mListeners) {
@@ -816,16 +1008,22 @@ public abstract class Connection implements IConferenceable {
         }
     }
 
+    /** @hide */
+    @Deprecated public final void setCapabilities(int connectionCapabilities) {
+        setConnectionCapabilities(connectionCapabilities);
+    }
+
     /**
-     * Sets the connection's {@link PhoneCapabilities}.
+     * Sets the connection's capabilities as a bit mask of the {@code CAPABILITY_*} constants.
      *
-     * @param callCapabilities The new call capabilities.
+     * @param connectionCapabilities The new connection capabilities.
      */
-    public final void setCallCapabilities(int callCapabilities) {
-        if (mCallCapabilities != callCapabilities) {
-            mCallCapabilities = callCapabilities;
+    public final void setConnectionCapabilities(int connectionCapabilities) {
+        checkImmutable();
+        if (mConnectionCapabilities != connectionCapabilities) {
+            mConnectionCapabilities = connectionCapabilities;
             for (Listener l : mListeners) {
-                l.onCallCapabilitiesChanged(this, mCallCapabilities);
+                l.onConnectionCapabilitiesChanged(this, mConnectionCapabilities);
             }
         }
     }
@@ -845,6 +1043,7 @@ public abstract class Connection implements IConferenceable {
      * @param isVoip True if the audio mode is VOIP.
      */
     public final void setAudioModeIsVoip(boolean isVoip) {
+        checkImmutable();
         mAudioModeIsVoip = isVoip;
         for (Listener l : mListeners) {
             l.onAudioModeIsVoipChanged(this, isVoip);
@@ -857,6 +1056,7 @@ public abstract class Connection implements IConferenceable {
      * @param statusHints The status label and icon to set.
      */
     public final void setStatusHints(StatusHints statusHints) {
+        checkImmutable();
         mStatusHints = statusHints;
         for (Listener l : mListeners) {
             l.onStatusHintsChanged(this, statusHints);
@@ -869,6 +1069,7 @@ public abstract class Connection implements IConferenceable {
      * @param conferenceableConnections The set of connections this connection can conference with.
      */
     public final void setConferenceableConnections(List<Connection> conferenceableConnections) {
+        checkImmutable();
         clearConferenceableList();
         for (Connection c : conferenceableConnections) {
             // If statement checks for duplicates in input. It makes it N^2 but we're dealing with a
@@ -917,6 +1118,7 @@ public abstract class Connection implements IConferenceable {
      * @hide
      */
     public final void setConnectionService(ConnectionService connectionService) {
+        checkImmutable();
         if (mConnectionService != null) {
             Log.e(this, new Exception(), "Trying to set ConnectionService on a connection " +
                     "which is already associated with another ConnectionService.");
@@ -946,13 +1148,14 @@ public abstract class Connection implements IConferenceable {
 
     /**
      * Sets the conference that this connection is a part of. This will fail if the connection is
-     * already part of a conference call. {@link #resetConference} to un-set the conference first.
+     * already part of a conference. {@link #resetConference} to un-set the conference first.
      *
      * @param conference The conference.
      * @return {@code true} if the conference was successfully set.
      * @hide
      */
     public final boolean setConference(Conference conference) {
+        checkImmutable();
         // We check to see if it is already part of another conference.
         if (mConference == null) {
             mConference = conference;
@@ -979,7 +1182,7 @@ public abstract class Connection implements IConferenceable {
     /**
      * Notifies this Connection that the {@link #getAudioState()} property has a new value.
      *
-     * @param state The new call audio state.
+     * @param state The new connection audio state.
      */
     public void onAudioStateChanged(AudioState state) {}
 
@@ -1041,7 +1244,7 @@ public abstract class Connection implements IConferenceable {
      * Notifies this Connection, which is in {@link #STATE_RINGING}, of
      * a request to accept.
      *
-     * @param videoState The video state in which to answer the call.
+     * @param videoState The video state in which to answer the connection.
      * @hide
      */
     public void onAnswer(int videoState) {}
@@ -1091,6 +1294,7 @@ public abstract class Connection implements IConferenceable {
     }
 
     private void setState(int state) {
+        checkImmutable();
         if (mState == STATE_DISCONNECTED && mState != state) {
             Log.d(this, "Connection already DISCONNECTED; cannot transition out of this state.");
             return;
@@ -1109,6 +1313,10 @@ public abstract class Connection implements IConferenceable {
         public FailureSignalingConnection(DisconnectCause disconnectCause) {
             setDisconnected(disconnectCause);
         }
+
+        public void checkImmutable() {
+            throw new UnsupportedOperationException("Connection is immutable");
+        }
     }
 
     /**
@@ -1127,21 +1335,30 @@ public abstract class Connection implements IConferenceable {
     }
 
     /**
+     * Override to throw an {@link UnsupportedOperationException} if this {@code Connection} is
+     * not intended to be mutated, e.g., if it is a marker for failure. Only for framework use;
+     * this should never be un-@hide-den.
+     *
+     * @hide
+     */
+    public void checkImmutable() {}
+
+    /**
      * Return a {@code Connection} which represents a canceled connection attempt. The returned
      * {@code Connection} will have state {@link #STATE_DISCONNECTED}, and cannot be moved out of
      * that state. This connection should not be used for anything, and no other
      * {@code Connection}s should be attempted.
      * <p>
-     * The returned {@code Connection} can be assumed to {@link #destroy()} itself when appropriate,
      * so users of this method need not maintain a reference to its return value to destroy it.
      *
-     * @return A {@code Connection} which indicates that the underlying call should be canceled.
+     * @return A {@code Connection} which indicates that the underlying connection should
+     * be canceled.
      */
     public static Connection createCanceledConnection() {
         return new FailureSignalingConnection(new DisconnectCause(DisconnectCause.CANCELED));
     }
 
-    private final void  fireOnConferenceableConnectionsChanged() {
+    private final void fireOnConferenceableConnectionsChanged() {
         for (Listener l : mListeners) {
             l.onConferenceablesChanged(this, getConferenceables());
         }
diff --git a/telecomm/java/android/telecom/ConnectionService.java b/telecomm/java/android/telecom/ConnectionService.java
index 08f3853..d0a8aee 100644
--- a/telecomm/java/android/telecom/ConnectionService.java
+++ b/telecomm/java/android/telecom/ConnectionService.java
@@ -407,11 +407,13 @@ public abstract class ConnectionService extends Service {
         }
 
         @Override
-        public void onCapabilitiesChanged(Conference conference, int capabilities) {
+        public void onConnectionCapabilitiesChanged(
+                Conference conference,
+                int connectionCapabilities) {
             String id = mIdByConference.get(conference);
             Log.d(this, "call capabilities: conference: %s",
-                    PhoneCapabilities.toString(capabilities));
-            mAdapter.setCallCapabilities(id, capabilities);
+                    Connection.capabilitiesToString(connectionCapabilities));
+            mAdapter.setConnectionCapabilities(id, connectionCapabilities);
         }
     };
 
@@ -489,11 +491,11 @@ public abstract class ConnectionService extends Service {
         }
 
         @Override
-        public void onCallCapabilitiesChanged(Connection c, int capabilities) {
+        public void onConnectionCapabilitiesChanged(Connection c, int capabilities) {
             String id = mIdByConnection.get(c);
             Log.d(this, "capabilities: parcelableconnection: %s",
-                    PhoneCapabilities.toString(capabilities));
-            mAdapter.setCallCapabilities(id, capabilities);
+                    Connection.capabilitiesToString(capabilities));
+            mAdapter.setConnectionCapabilities(id, capabilities);
         }
 
         @Override
@@ -581,7 +583,7 @@ public abstract class ConnectionService extends Service {
         Log.v(this, "createConnection, number: %s, state: %s, capabilities: %s",
                 Connection.toLogSafePhoneNumber(number),
                 Connection.stateToString(connection.getState()),
-                PhoneCapabilities.toString(connection.getCallCapabilities()));
+                Connection.capabilitiesToString(connection.getConnectionCapabilities()));
 
         Log.d(this, "createConnection, calling handleCreateConnectionSuccessful %s", callId);
         mAdapter.handleCreateConnectionComplete(
@@ -590,7 +592,7 @@ public abstract class ConnectionService extends Service {
                 new ParcelableConnection(
                         request.getAccountHandle(),
                         connection.getState(),
-                        connection.getCallCapabilities(),
+                        connection.getConnectionCapabilities(),
                         connection.getAddress(),
                         connection.getAddressPresentation(),
                         connection.getCallerDisplayName(),
@@ -873,7 +875,7 @@ public abstract class ConnectionService extends Service {
             ParcelableConference parcelableConference = new ParcelableConference(
                     conference.getPhoneAccountHandle(),
                     conference.getState(),
-                    conference.getCapabilities(),
+                    conference.getConnectionCapabilities(),
                     connectionIds);
             mAdapter.addConferenceCall(id, parcelableConference);
 
@@ -904,7 +906,7 @@ public abstract class ConnectionService extends Service {
             ParcelableConnection parcelableConnection = new ParcelableConnection(
                     phoneAccountHandle,
                     connection.getState(),
-                    connection.getCallCapabilities(),
+                    connection.getConnectionCapabilities(),
                     connection.getAddress(),
                     connection.getAddressPresentation(),
                     connection.getCallerDisplayName(),
diff --git a/telecomm/java/android/telecom/ConnectionServiceAdapter.java b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
index e67af8c..aee9675 100644
--- a/telecomm/java/android/telecom/ConnectionServiceAdapter.java
+++ b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
@@ -175,10 +175,10 @@ final class ConnectionServiceAdapter implements DeathRecipient {
         }
     }
 
-    void setCallCapabilities(String callId, int capabilities) {
+    void setConnectionCapabilities(String callId, int capabilities) {
         for (IConnectionServiceAdapter adapter : mAdapters) {
             try {
-                adapter.setCallCapabilities(callId, capabilities);
+                adapter.setConnectionCapabilities(callId, capabilities);
             } catch (RemoteException ignored) {
             }
         }
diff --git a/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java b/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
index 519a400..7619da5 100644
--- a/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
+++ b/telecomm/java/android/telecom/ConnectionServiceAdapterServant.java
@@ -44,7 +44,7 @@ final class ConnectionServiceAdapterServant {
     private static final int MSG_SET_DISCONNECTED = 5;
     private static final int MSG_SET_ON_HOLD = 6;
     private static final int MSG_SET_RINGBACK_REQUESTED = 7;
-    private static final int MSG_SET_CALL_CAPABILITIES = 8;
+    private static final int MSG_SET_CONNECTION_CAPABILITIES = 8;
     private static final int MSG_SET_IS_CONFERENCED = 9;
     private static final int MSG_ADD_CONFERENCE_CALL = 10;
     private static final int MSG_REMOVE_CALL = 11;
@@ -109,8 +109,8 @@ final class ConnectionServiceAdapterServant {
                 case MSG_SET_RINGBACK_REQUESTED:
                     mDelegate.setRingbackRequested((String) msg.obj, msg.arg1 == 1);
                     break;
-                case MSG_SET_CALL_CAPABILITIES:
-                    mDelegate.setCallCapabilities((String) msg.obj, msg.arg1);
+                case MSG_SET_CONNECTION_CAPABILITIES:
+                    mDelegate.setConnectionCapabilities((String) msg.obj, msg.arg1);
                     break;
                 case MSG_SET_IS_CONFERENCED: {
                     SomeArgs args = (SomeArgs) msg.obj;
@@ -263,8 +263,9 @@ final class ConnectionServiceAdapterServant {
         }
 
         @Override
-        public void setCallCapabilities(String connectionId, int callCapabilities) {
-            mHandler.obtainMessage(MSG_SET_CALL_CAPABILITIES, callCapabilities, 0, connectionId)
+        public void setConnectionCapabilities(String connectionId, int connectionCapabilities) {
+            mHandler.obtainMessage(
+                    MSG_SET_CONNECTION_CAPABILITIES, connectionCapabilities, 0, connectionId)
                     .sendToTarget();
         }
 
diff --git a/telecomm/java/android/telecom/ParcelableConference.java b/telecomm/java/android/telecom/ParcelableConference.java
index 97c709c..c4e11d6 100644
--- a/telecomm/java/android/telecom/ParcelableConference.java
+++ b/telecomm/java/android/telecom/ParcelableConference.java
@@ -30,17 +30,17 @@ public final class ParcelableConference implements Parcelable {
 
     private PhoneAccountHandle mPhoneAccount;
     private int mState;
-    private int mCapabilities;
+    private int mConnectionCapabilities;
     private List<String> mConnectionIds;
 
     public ParcelableConference(
             PhoneAccountHandle phoneAccount,
             int state,
-            int capabilities,
+            int connectionCapabilities,
             List<String> connectionIds) {
         mPhoneAccount = phoneAccount;
         mState = state;
-        mCapabilities = capabilities;
+        mConnectionCapabilities = connectionCapabilities;
         mConnectionIds = connectionIds;
     }
 
@@ -52,7 +52,7 @@ public final class ParcelableConference implements Parcelable {
                 .append(", state: ")
                 .append(Connection.stateToString(mState))
                 .append(", capabilities: ")
-                .append(PhoneCapabilities.toString(mCapabilities))
+                .append(Connection.capabilitiesToString(mConnectionCapabilities))
                 .append(", children: ")
                 .append(mConnectionIds)
                 .toString();
@@ -66,8 +66,8 @@ public final class ParcelableConference implements Parcelable {
         return mState;
     }
 
-    public int getCapabilities() {
-        return mCapabilities;
+    public int getConnectionCapabilities() {
+        return mConnectionCapabilities;
     }
 
     public List<String> getConnectionIds() {
@@ -105,7 +105,7 @@ public final class ParcelableConference implements Parcelable {
     public void writeToParcel(Parcel destination, int flags) {
         destination.writeParcelable(mPhoneAccount, 0);
         destination.writeInt(mState);
-        destination.writeInt(mCapabilities);
+        destination.writeInt(mConnectionCapabilities);
         destination.writeList(mConnectionIds);
     }
 }
diff --git a/telecomm/java/android/telecom/ParcelableConnection.java b/telecomm/java/android/telecom/ParcelableConnection.java
index 9004448..552e250 100644
--- a/telecomm/java/android/telecom/ParcelableConnection.java
+++ b/telecomm/java/android/telecom/ParcelableConnection.java
@@ -34,7 +34,7 @@ import java.util.List;
 public final class ParcelableConnection implements Parcelable {
     private final PhoneAccountHandle mPhoneAccount;
     private final int mState;
-    private final int mCapabilities;
+    private final int mConnectionCapabilities;
     private final Uri mAddress;
     private final int mAddressPresentation;
     private final String mCallerDisplayName;
@@ -65,7 +65,7 @@ public final class ParcelableConnection implements Parcelable {
             List<String> conferenceableConnectionIds) {
         mPhoneAccount = phoneAccount;
         mState = state;
-        mCapabilities = capabilities;
+        mConnectionCapabilities = capabilities;
         mAddress = address;
         mAddressPresentation = addressPresentation;
         mCallerDisplayName = callerDisplayName;
@@ -88,8 +88,8 @@ public final class ParcelableConnection implements Parcelable {
     }
 
     // Bit mask of actions a call supports, values are defined in {@link CallCapabilities}.
-    public int getCapabilities() {
-        return mCapabilities;
+    public int getConnectionCapabilities() {
+        return mConnectionCapabilities;
     }
 
     public Uri getHandle() {
@@ -144,7 +144,7 @@ public final class ParcelableConnection implements Parcelable {
                 .append(", state:")
                 .append(mState)
                 .append(", capabilities:")
-                .append(PhoneCapabilities.toString(mCapabilities))
+                .append(Connection.capabilitiesToString(mConnectionCapabilities))
                 .toString();
     }
 
@@ -205,7 +205,7 @@ public final class ParcelableConnection implements Parcelable {
     public void writeToParcel(Parcel destination, int flags) {
         destination.writeParcelable(mPhoneAccount, 0);
         destination.writeInt(mState);
-        destination.writeInt(mCapabilities);
+        destination.writeInt(mConnectionCapabilities);
         destination.writeParcelable(mAddress, 0);
         destination.writeInt(mAddressPresentation);
         destination.writeString(mCallerDisplayName);
diff --git a/telecomm/java/android/telecom/PhoneAccount.java b/telecomm/java/android/telecom/PhoneAccount.java
index 2240c44..6bd6a2f 100644
--- a/telecomm/java/android/telecom/PhoneAccount.java
+++ b/telecomm/java/android/telecom/PhoneAccount.java
@@ -120,9 +120,14 @@ public class PhoneAccount implements Parcelable {
     public static final String SCHEME_SIP = "sip";
 
     /**
-     * Indicating no color is set.
+     * Indicating no icon tint is set.
      */
-    public static final int NO_COLOR = -1;
+    public static final int NO_ICON_TINT = 0;
+
+    /**
+     * Indicating no hightlight color is set.
+     */
+    public static final int NO_HIGHLIGHT_COLOR = 0;
 
     /**
      * Indicating no resource ID is set.
@@ -153,8 +158,8 @@ public class PhoneAccount implements Parcelable {
         private int mIconResId;
         private String mIconPackageName;
         private Bitmap mIconBitmap;
-        private int mIconTint = NO_COLOR;
-        private int mHighlightColor = NO_COLOR;
+        private int mIconTint = NO_ICON_TINT;
+        private int mHighlightColor = NO_HIGHLIGHT_COLOR;
         private CharSequence mLabel;
         private CharSequence mShortDescription;
         private List<String> mSupportedUriSchemes = new ArrayList<String>();
@@ -240,7 +245,7 @@ public class PhoneAccount implements Parcelable {
          * @return The builder.
          */
         public Builder setIcon(String iconPackageName, int iconResId) {
-            return setIcon(iconPackageName, iconResId, NO_COLOR);
+            return setIcon(iconPackageName, iconResId, NO_ICON_TINT);
         }
 
         /**
@@ -280,7 +285,7 @@ public class PhoneAccount implements Parcelable {
             this.mIconBitmap = iconBitmap;
             this.mIconPackageName = null;
             this.mIconResId = NO_RESOURCE_ID;
-            this.mIconTint = NO_COLOR;
+            this.mIconTint = NO_ICON_TINT;
             return this;
         }
 
@@ -589,7 +594,7 @@ public class PhoneAccount implements Parcelable {
                 Context packageContext = context.createPackageContext(mIconPackageName, 0);
                 try {
                     Drawable iconDrawable = packageContext.getDrawable(mIconResId);
-                    if (mIconTint != NO_COLOR) {
+                    if (mIconTint != NO_ICON_TINT) {
                         iconDrawable.setTint(mIconTint);
                     }
                     return iconDrawable;
diff --git a/telecomm/java/android/telecom/PhoneCapabilities.java b/telecomm/java/android/telecom/PhoneCapabilities.java
deleted file mode 100644
index c21a6d1..0000000
--- a/telecomm/java/android/telecom/PhoneCapabilities.java
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright 2014, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.telecom;
-
-import android.annotation.SystemApi;
-
-/**
- * Defines capabilities for {@link Connection}s and {@link Conference}s such as hold, swap, and
- * merge.
- * @hide
- */
-@SystemApi
-public final class PhoneCapabilities {
-    /** Call can currently be put on hold or unheld. */
-    public static final int HOLD               = 0x00000001;
-
-    /** Call supports the hold feature. */
-    public static final int SUPPORT_HOLD       = 0x00000002;
-
-    /**
-     * Calls within a conference can be merged. A {@link ConnectionService} has the option to
-     * add a {@link Conference} call before the child {@link Connection}s are merged. This is how
-     * CDMA-based {@link Connection}s are implemented. For these unmerged {@link Conference}s, this
-     * capability allows a merge button to be shown while the conference call is in the foreground
-     * of the in-call UI.
-     * <p>
-     * This is only intended for use by a {@link Conference}.
-     */
-    public static final int MERGE_CONFERENCE   = 0x00000004;
-
-    /**
-     * Calls within a conference can be swapped between foreground and background.
-     * See {@link #MERGE_CONFERENCE} for additional information.
-     * <p>
-     * This is only intended for use by a {@link Conference}.
-     */
-    public static final int SWAP_CONFERENCE    = 0x00000008;
-
-    /**
-     * @hide
-     */
-    public static final int UNUSED             = 0x00000010;
-
-    /** Call supports responding via text option. */
-    public static final int RESPOND_VIA_TEXT   = 0x00000020;
-
-    /** Call can be muted. */
-    public static final int MUTE               = 0x00000040;
-
-    /**
-     * Call supports conference call management. This capability only applies to {@link Conference}
-     * calls which can have {@link Connection}s as children.
-     */
-    public static final int MANAGE_CONFERENCE = 0x00000080;
-
-    /**
-     * Local device supports video telephony.
-     * @hide
-     */
-    public static final int SUPPORTS_VT_LOCAL  = 0x00000100;
-
-    /**
-     * Remote device supports video telephony.
-     * @hide
-     */
-    public static final int SUPPORTS_VT_REMOTE = 0x00000200;
-
-    /**
-     * Call is using voice over LTE.
-     * @hide
-     */
-    public static final int VoLTE = 0x00000400;
-
-    /**
-     * Call is using voice over WIFI.
-     * @hide
-     */
-    public static final int VoWIFI = 0x00000800;
-
-    /**
-     * Call is able to be separated from its parent {@code Conference}, if any.
-     */
-    public static final int SEPARATE_FROM_CONFERENCE = 0x00001000;
-
-    /**
-     * Call is able to be individually disconnected when in a {@code Conference}.
-     */
-    public static final int DISCONNECT_FROM_CONFERENCE = 0x00002000;
-
-    /**
-     * Whether the call is a generic conference, where we do not know the precise state of
-     * participants in the conference (eg. on CDMA).
-     *
-     * TODO: Move to CallProperties.
-     *
-     * @hide
-     */
-    public static final int GENERIC_CONFERENCE = 0x00004000;
-
-    public static final int ALL = HOLD | SUPPORT_HOLD | MERGE_CONFERENCE | SWAP_CONFERENCE
-            | RESPOND_VIA_TEXT | MUTE | MANAGE_CONFERENCE | SEPARATE_FROM_CONFERENCE
-            | DISCONNECT_FROM_CONFERENCE;
-
-    /**
-     * Whether this set of capabilities supports the specified capability.
-     * @param capabilities The set of capabilities.
-     * @param capability The capability to check capabilities for.
-     * @return Whether the specified capability is supported.
-     * @hide
-     */
-    public static boolean can(int capabilities, int capability) {
-        return (capabilities & capability) != 0;
-    }
-
-    /**
-     * Removes the specified capability from the set of capabilities and returns the new set.
-     * @param capabilities The set of capabilities.
-     * @param capability The capability to remove from the set.
-     * @return The set of capabilities, with the capability removed.
-     * @hide
-     */
-    public static int remove(int capabilities, int capability) {
-        return capabilities & ~capability;
-    }
-
-    public static String toString(int capabilities) {
-        StringBuilder builder = new StringBuilder();
-        builder.append("[Capabilities:");
-        if (can(capabilities, HOLD)) {
-            builder.append(" HOLD");
-        }
-        if (can(capabilities, SUPPORT_HOLD)) {
-            builder.append(" SUPPORT_HOLD");
-        }
-        if (can(capabilities, MERGE_CONFERENCE)) {
-            builder.append(" MERGE_CONFERENCE");
-        }
-        if (can(capabilities, SWAP_CONFERENCE)) {
-            builder.append(" SWAP_CONFERENCE");
-        }
-        if (can(capabilities, RESPOND_VIA_TEXT)) {
-            builder.append(" RESPOND_VIA_TEXT");
-        }
-        if (can(capabilities, MUTE)) {
-            builder.append(" MUTE");
-        }
-        if (can(capabilities, MANAGE_CONFERENCE)) {
-            builder.append(" MANAGE_CONFERENCE");
-        }
-        if (can(capabilities, SUPPORTS_VT_LOCAL)) {
-            builder.append(" SUPPORTS_VT_LOCAL");
-        }
-        if (can(capabilities, SUPPORTS_VT_REMOTE)) {
-            builder.append(" SUPPORTS_VT_REMOTE");
-        }
-        if (can(capabilities, VoLTE)) {
-            builder.append(" VoLTE");
-        }
-        if (can(capabilities, VoWIFI)) {
-            builder.append(" VoWIFI");
-        }
-        if (can(capabilities, GENERIC_CONFERENCE)) {
-            builder.append(" GENERIC_CONFERENCE");
-        }
-
-        builder.append("]");
-        return builder.toString();
-    }
-
-    private PhoneCapabilities() {}
-}
diff --git a/telecomm/java/android/telecom/RemoteConference.java b/telecomm/java/android/telecom/RemoteConference.java
index b548274..a8879ae 100644
--- a/telecomm/java/android/telecom/RemoteConference.java
+++ b/telecomm/java/android/telecom/RemoteConference.java
@@ -40,7 +40,9 @@ public final class RemoteConference {
         public void onDisconnected(RemoteConference conference, DisconnectCause disconnectCause) {}
         public void onConnectionAdded(RemoteConference conference, RemoteConnection connection) {}
         public void onConnectionRemoved(RemoteConference conference, RemoteConnection connection) {}
-        public void onCapabilitiesChanged(RemoteConference conference, int capabilities) {}
+        public void onConnectionCapabilitiesChanged(
+                RemoteConference conference,
+                int connectionCapabilities) {}
         public void onConferenceableConnectionsChanged(
                 RemoteConference conference,
                 List<RemoteConnection> conferenceableConnections) {}
@@ -60,7 +62,7 @@ public final class RemoteConference {
 
     private int mState = Connection.STATE_NEW;
     private DisconnectCause mDisconnectCause;
-    private int mCallCapabilities;
+    private int mConnectionCapabilities;
 
     /** {@hide} */
     RemoteConference(String id, IConnectionService connectionService) {
@@ -125,11 +127,11 @@ public final class RemoteConference {
     }
 
     /** {@hide} */
-    void setCallCapabilities(int capabilities) {
-        if (mCallCapabilities != capabilities) {
-            mCallCapabilities = capabilities;
+    void setConnectionCapabilities(int connectionCapabilities) {
+        if (mConnectionCapabilities != connectionCapabilities) {
+            mConnectionCapabilities = connectionCapabilities;
             for (Callback c : mCallbacks) {
-                c.onCapabilitiesChanged(this, mCallCapabilities);
+                c.onConnectionCapabilitiesChanged(this, mConnectionCapabilities);
             }
         }
     }
@@ -162,8 +164,13 @@ public final class RemoteConference {
         return mState;
     }
 
-    public final int getCallCapabilities() {
-        return mCallCapabilities;
+    /** @hide */
+    @Deprecated public final int getCallCapabilities() {
+        return getConnectionCapabilities();
+    }
+
+    public final int getConnectionCapabilities() {
+        return mConnectionCapabilities;
     }
 
     public void disconnect() {
diff --git a/telecomm/java/android/telecom/RemoteConnection.java b/telecomm/java/android/telecom/RemoteConnection.java
index d70ddf6..95cc387 100644
--- a/telecomm/java/android/telecom/RemoteConnection.java
+++ b/telecomm/java/android/telecom/RemoteConnection.java
@@ -73,14 +73,21 @@ public final class RemoteConnection {
          */
         public void onRingbackRequested(RemoteConnection connection, boolean ringback) {}
 
+        /** @hide */
+        @Deprecated public void onCallCapabilitiesChanged(
+                RemoteConnection connection,
+                int callCapabilities) {}
+
         /**
          * Indicates that the call capabilities of this {@code RemoteConnection} have changed.
-         * See {@link #getCallCapabilities()}.
+         * See {@link #getConnectionCapabilities()}.
          *
          * @param connection The {@code RemoteConnection} invoking this method.
-         * @param callCapabilities The new call capabilities of the {@code RemoteConnection}.
+         * @param connectionCapabilities The new capabilities of the {@code RemoteConnection}.
          */
-        public void onCallCapabilitiesChanged(RemoteConnection connection, int callCapabilities) {}
+        public void onConnectionCapabilitiesChanged(
+                RemoteConnection connection,
+                int connectionCapabilities) {}
 
         /**
          * Invoked when the post-dial sequence in the outgoing {@code Connection} has reached a
@@ -385,7 +392,7 @@ public final class RemoteConnection {
     private DisconnectCause mDisconnectCause;
     private boolean mRingbackRequested;
     private boolean mConnected;
-    private int mCallCapabilities;
+    private int mConnectionCapabilities;
     private int mVideoState;
     private VideoProvider mVideoProvider;
     private boolean mIsVoipAudioMode;
@@ -420,7 +427,7 @@ public final class RemoteConnection {
         mState = connection.getState();
         mDisconnectCause = connection.getDisconnectCause();
         mRingbackRequested = connection.isRingbackRequested();
-        mCallCapabilities = connection.getCapabilities();
+        mConnectionCapabilities = connection.getConnectionCapabilities();
         mVideoState = connection.getVideoState();
         mVideoProvider = new RemoteConnection.VideoProvider(connection.getVideoProvider());
         mIsVoipAudioMode = connection.getIsVoipAudioMode();
@@ -477,23 +484,29 @@ public final class RemoteConnection {
     }
 
     /**
+     * Obtains the reason why this {@code RemoteConnection} may have been disconnected.
+     *
      * @return For a {@link Connection#STATE_DISCONNECTED} {@code RemoteConnection}, the
-     * disconnect cause expressed as a code chosen from among those declared in
-     * {@link DisconnectCause}.
+     *         disconnect cause expressed as a code chosen from among those declared in
+     *         {@link DisconnectCause}.
      */
     public DisconnectCause getDisconnectCause() {
         return mDisconnectCause;
     }
 
     /**
+     * Obtains the capabilities of this {@code RemoteConnection}.
+     *
      * @return A bitmask of the capabilities of the {@code RemoteConnection}, as defined in
-     *         {@link PhoneCapabilities}.
+     *         the {@code CAPABILITY_*} constants in class {@link Connection}.
      */
-    public int getCallCapabilities() {
-        return mCallCapabilities;
+    public int getConnectionCapabilities() {
+        return mConnectionCapabilities;
     }
 
     /**
+     * Determines if the audio mode of this {@code RemoteConnection} is VOIP.
+     *
      * @return {@code true} if the {@code RemoteConnection}'s current audio mode is VOIP.
      */
     public boolean isVoipAudioMode() {
@@ -501,30 +514,38 @@ public final class RemoteConnection {
     }
 
     /**
+     * Obtains status hints pertaining to this {@code RemoteConnection}.
+     *
      * @return The current {@link StatusHints} of this {@code RemoteConnection},
-     * or {@code null} if none have been set.
+     *         or {@code null} if none have been set.
      */
     public StatusHints getStatusHints() {
         return mStatusHints;
     }
 
     /**
-     * @return The address (e.g., phone number) to which the {@code RemoteConnection} is currently
-     * connected.
+     * Obtains the address of this {@code RemoteConnection}.
+     *
+     * @return The address (e.g., phone number) to which the {@code RemoteConnection}
+     *         is currently connected.
      */
     public Uri getAddress() {
         return mAddress;
     }
 
     /**
-     * @return The presentation requirements for the address. See {@link TelecomManager} for valid
-     * values.
+     * Obtains the presentation requirements for the address of this {@code RemoteConnection}.
+     *
+     * @return The presentation requirements for the address. See
+     *         {@link TelecomManager} for valid values.
      */
     public int getAddressPresentation() {
         return mAddressPresentation;
     }
 
     /**
+     * Obtains the display name for this {@code RemoteConnection}'s caller.
+     *
      * @return The display name for the caller.
      */
     public CharSequence getCallerDisplayName() {
@@ -532,16 +553,20 @@ public final class RemoteConnection {
     }
 
     /**
+     * Obtains the presentation requirements for this {@code RemoteConnection}'s
+     * caller's display name.
+     *
      * @return The presentation requirements for the caller display name. See
-     * {@link TelecomManager} for valid values.
+     *         {@link TelecomManager} for valid values.
      */
     public int getCallerDisplayNamePresentation() {
         return mCallerDisplayNamePresentation;
     }
 
     /**
-     * @return The video state of the {@code RemoteConnection}. See
-     * {@link VideoProfile.VideoState}.
+     * Obtains the video state of this {@code RemoteConnection}.
+     *
+     * @return The video state of the {@code RemoteConnection}. See {@link VideoProfile.VideoState}.
      * @hide
      */
     public int getVideoState() {
@@ -549,6 +574,8 @@ public final class RemoteConnection {
     }
 
     /**
+     * Obtains the video provider of this {@code RemoteConnection}.
+     *
      * @return The video provider associated with this {@code RemoteConnection}.
      * @hide
      */
@@ -557,8 +584,10 @@ public final class RemoteConnection {
     }
 
     /**
+     * Determines whether this {@code RemoteConnection} is requesting ringback.
+     *
      * @return Whether the {@code RemoteConnection} is requesting that the framework play a
-     * ringback tone on its behalf.
+     *         ringback tone on its behalf.
      */
     public boolean isRingbackRequested() {
         return false;
@@ -800,10 +829,11 @@ public final class RemoteConnection {
     /**
      * @hide
      */
-    void setCallCapabilities(int callCapabilities) {
-        mCallCapabilities = callCapabilities;
+    void setConnectionCapabilities(int connectionCapabilities) {
+        mConnectionCapabilities = connectionCapabilities;
         for (Callback c : mCallbacks) {
-            c.onCallCapabilitiesChanged(this, callCapabilities);
+            c.onConnectionCapabilitiesChanged(this, connectionCapabilities);
+            c.onCallCapabilitiesChanged(this, connectionCapabilities);
         }
     }
 
diff --git a/telecomm/java/android/telecom/RemoteConnectionService.java b/telecomm/java/android/telecom/RemoteConnectionService.java
index 4bb78c0..906ecaa 100644
--- a/telecomm/java/android/telecom/RemoteConnectionService.java
+++ b/telecomm/java/android/telecom/RemoteConnectionService.java
@@ -59,7 +59,7 @@ final class RemoteConnectionService {
             if (connection != NULL_CONNECTION && mPendingConnections.contains(connection)) {
                 mPendingConnections.remove(connection);
                 // Unconditionally initialize the connection ...
-                connection.setCallCapabilities(parcel.getCapabilities());
+                connection.setConnectionCapabilities(parcel.getConnectionCapabilities());
                 connection.setAddress(
                         parcel.getHandle(), parcel.getHandlePresentation());
                 connection.setCallerDisplayName(
@@ -139,13 +139,13 @@ final class RemoteConnectionService {
         }
 
         @Override
-        public void setCallCapabilities(String callId, int callCapabilities) {
+        public void setConnectionCapabilities(String callId, int connectionCapabilities) {
             if (mConnectionById.containsKey(callId)) {
-                findConnectionForAction(callId, "setCallCapabilities")
-                        .setCallCapabilities(callCapabilities);
+                findConnectionForAction(callId, "setConnectionCapabilities")
+                        .setConnectionCapabilities(connectionCapabilities);
             } else {
-                findConferenceForAction(callId, "setCallCapabilities")
-                        .setCallCapabilities(callCapabilities);
+                findConferenceForAction(callId, "setConnectionCapabilities")
+                        .setConnectionCapabilities(connectionCapabilities);
             }
         }
 
@@ -192,7 +192,7 @@ final class RemoteConnectionService {
             }
 
             conference.setState(parcel.getState());
-            conference.setCallCapabilities(parcel.getCapabilities());
+            conference.setConnectionCapabilities(parcel.getConnectionCapabilities());
             mConferenceById.put(callId, conference);
             conference.registerCallback(new RemoteConference.Callback() {
                 @Override
diff --git a/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl b/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
index 0d6b3d9..4517a96 100644
--- a/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
+++ b/telecomm/java/com/android/internal/telecom/IConnectionServiceAdapter.aidl
@@ -52,7 +52,7 @@ oneway interface IConnectionServiceAdapter {
 
     void setRingbackRequested(String callId, boolean ringing);
 
-    void setCallCapabilities(String callId, int callCapabilities);
+    void setConnectionCapabilities(String callId, int connectionCapabilities);
 
     void setIsConferenced(String callId, String conferenceCallId);