diff -r 000000000000 -r 6474c204b198 dom/webidl/TelephonyCall.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/TelephonyCall.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,59 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+[Pref="dom.telephony.enabled"]
+interface TelephonyCall : EventTarget {
+  // Indicate which service the call comes from.
+  readonly attribute unsigned long serviceId;
+
+  readonly attribute DOMString number;
+
+  // In CDMA networks, the 2nd waiting call shares the connection with the 1st
+  // call. We need an additional attribute for the 2nd number.
+  readonly attribute DOMString? secondNumber;
+
+  readonly attribute DOMString state;
+
+  // The property "emergency" indicates whether the call number is an emergency
+  // number. Only the outgoing call could have a value with true and it is
+  // available after dialing state.
+  readonly attribute boolean emergency;
+
+  // Indicate whether the call state can be switched between "connected" and
+  // "held".
+  readonly attribute boolean switchable;
+
+  // Indicate whether the call can be added into TelephonyCallGroup.
+  readonly attribute boolean mergeable;
+
+  readonly attribute DOMError? error;
+
+  readonly attribute TelephonyCallGroup? group;
+
+  [Throws]
+  void answer();
+  [Throws]
+  void hangUp();
+  [Throws]
+  void hold();
+  [Throws]
+  void resume();
+
+  attribute EventHandler onstatechange;
+  attribute EventHandler ondialing;
+  attribute EventHandler onalerting;
+  attribute EventHandler onconnecting;
+  attribute EventHandler onconnected;
+  attribute EventHandler ondisconnecting;
+  attribute EventHandler ondisconnected;
+  attribute EventHandler onholding;
+  attribute EventHandler onheld;
+  attribute EventHandler onresuming;
+  attribute EventHandler onerror;
+
+  // Fired whenever the group attribute changes.
+  attribute EventHandler ongroupchange;
+};