Merge "Add intdef for Telecom connection states."

 */

public abstract class Connection extends Conferenceable {

    /**@hide*/

    @Retention(RetentionPolicy.SOURCE)

    @IntDef(prefix = "STATE_", value = {

            STATE_INITIALIZING,

            STATE_NEW,

            STATE_RINGING,

            STATE_DIALING,

            STATE_ACTIVE,

            STATE_HOLDING,

            STATE_DISCONNECTED,

            STATE_PULLING_CALL

    })

    public @interface ConnectionState {}

    /**

     * The connection is initializing. This is generally the first state for a {@code Connection}

     * returned by a {@link ConnectionService}.