This API is available on Firefox OS for internal applications only.
The number read-only property of the TelephonyCall interface indicates the telephone number associated with the current phone call. Replaced by TelephonyCall.id in Firefox OS 2.0+.
Syntax
var calledNumber = myCall.number;
Value
A DOMString
Examples
// Telephony object
var tel = navigator.mozTelephony;
// Place a call
tel.dial("123456789").then(function(call) {
  call.number;
});
// Receive a call
tel.onincoming = function (e) {
  var incomingCall = e.call;
  // Get the number of the incoming call
  console.log(incomingCall.number);
  // Answer the call
  incomingCall.answer();
};
Specifications
| Specification | Status | Comment | 
|---|---|---|
| Web Telephony | Draft | Draft. | 
Browser compatibility
For obvious reasons, support is primarily expected on mobile browsers.
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari | 
|---|---|---|---|---|---|
| Basic support | No support | No support | No support | No support | No support | 
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | 
|---|---|---|---|---|---|---|
| Basic support | No support | 12.0 (12.0) [1] | 1.0.1 [1] | No support | No support | No support | 
[1] Replaced by TelephoneCall.id in Firefox OS 2.0 (Gecko 32.)