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« DOM Reference

This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

This API is available on Firefox OS for certified applications only.


Provides support for dialing, answering, and managing phone calls on a device with telephony support.

A TelephonyCall object indicating the call that is currently active. The active call is the one receiving input from the microphone and any tones generated using the Telephony.startTone() method.
An array of TelephonyCall objects, one for each call that is currently connected.
Set to true to mute the microphone or false to enable the microphone.
Set to true to enable the speakerphone functionality or false to disable it.

Event Handlers

A handler for the callschanged event; this CallEvent event is sent whenever the calls list changes.
A handler for the incoming event; this CallEvent is sent whenever a new call is incoming.


Dials the specified phone number, which is specified as a string.
Begins generating the specified DTMF tone.
Stops generating the currently sounding DTMF tone.


This is a non standard implementation, but it is discussed at W3C as part of the System Application Working Group.

Specification Status Comment
Web Telephony API Editor's Draft Editor Draft (WIP).

Browser compatibility

For obvious reasons, support is primarily expected on mobile browsers.

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported Not supported Not supported Not supported Not supported
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported 12.0 (12.0) Not supported Not supported Not supported

See also

Étiquettes et contributeurs liés au document

Contributeurs ayant participé à cette page : Sheppy, Jeremie, kscarfone, teoli
Dernière mise à jour par : kscarfone,