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

The CallEvent interface of the Web Telephony API represents events related to telephone calls.

Properties Read only
A TelephonyCall object representing the call from which the event originated.


// Telephony object
var tel = navigator.mozTelephony;

// Receive a call
tel.onincoming = function(e) {
  var incomingCall =;

  // Answer the call


Specification Status Comment
Web Telephony Draft Draft

Browser compatibility

Supported in Firefox OS 1.0.1.

See also

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