CallListener (sinch-rtc API)

All Known Subinterfaces:

VideoCallListener
```
public interface CallListener
```
Represents a listener of Call events. The methods handle call state changes.
Call State Progression

For a complete outgoing call, the listener methods will be called in the following order:
- onCallProgressing
- onCallEstablished
- onCallEnded
For a complete incoming call, the delegate methods will be called in the following order, after the callback method CallControllerListener.onIncomingCall(CallController, Call) has been called:
- onCallEstablished
- onCallEnded

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`onCallEnded(Call call)`	Tells the listener that the call ended.
`void`	`onCallEstablished(Call call)`	Tells the listener that the call was established .
`void`	`onCallProgressing(Call call)`	Tells the listener that the outgoing call is progressing and a progress tone can be played.

- Method Detail
  - onCallProgressing
```
void onCallProgressing(Call call)
```
    Tells the listener that the outgoing call is progressing and a progress tone can be played.
    The call has entered the PROGRESSING state.
    
    Parameters:
    
    call - The outgoing call to the client on the other end.
  - onCallEstablished
```
void onCallEstablished(Call call)
```
    Tells the listener that the call was established .
    The call has entered the ESTABLISHED state.
    
    Parameters:
    
    call - The call that was established.
  - onCallEnded
```
void onCallEnded(Call call)
```
    Tells the listener that the call ended.
    The call has entered the ENDED state.
    
    Parameters:
    
    call - The call that ended.