This API is available on Firefox OS for internal applications only.
The resume() method of the TelephonyCallGroup interface resumes a previously held conference call.
Syntax
myTelephonyCallGroup.resume()
Parameters
None.
Returns
Void.
Examples
// Create your Telephony object
var tel = navigator.mozTelephony;
// Make two calls; assume they are both answered
var call1, call2;
tel.dial(number1).then(call => call1 = call);
tel.dial(number2).then(call => call2 = call);
// Add both calls to the conference call
// Two entries will appear in conference.calls (call1, call2)
// but nothing in tel.calls
var conference = tel.conferenceGroup;
conference.add(call1, call2);
// say we had a hold conference button...
holdButton.onclick = function() {
  conference.hold()
};
// ... and a resume conference button
resumeButton.onclick = function() {
  conference.resume()
};
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) | 1.0.1 | No support | No support | No support | 
See also
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                       Contributors to this page: 
        chrisdavidmills, 
        teoli
                    
                    
                       Last updated by:
                      chrisdavidmills,