This API is available on Firefox OS for internal applications only.
Summary
A reference to a function to be called to handle the Telephony API's busy event. This event occurs when the call receives a busy signal from the phone network. The event handler is called with a CallEvent as its only parameter.
Syntax
instanceOfTelephonyCall.onbusy = funcRef;
Where funcRef is a function to be called when the busy event occurs. These events are of type CallEvent.
Specifications
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 | 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 | No support | No support | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 12.0 (12.0) | No support | No support | No support |