This API is available on Firefox OS for internal applications only.
The onheld event handler of the TelephonyCall interface is a reference to a function to be called when the current call has been held.
The event handler is called with a CallEvent as its only parameter.
Syntax
myCall.onheld = function() { ... };
Examples
// Telephony object
var tel = navigator.mozTelephony;
// Place a call
tel.dial("123456789").then(function(call) {
  call.number;
  call.onheld = function(e) {
    console.log('Your call to ' + e.call.id + ' has successfully been put on hold.');
  }
});
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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        chrisdavidmills, 
        teoli
                    
                    
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