IMultiCallControl.ongoingCalls property

Emits the number of calls currently in progress.

• 0 means that the device is idle with no calls in progress
• 1 or more signifies the number of calls currently active

Starting a new call - or accepting an incoming call - will increment this counter. Similarly, ending a call will decrement the count until it reaches 0.

Signature

ongoingCalls: Observable<number>;

Remarks

To handle multiple-call scenarios, ensure you keep your application's list of ongoing calls in sync with this count.

To handle one active call at a time, do one of the following:

• treat this value as an ON-OFF toggle,
• optionally throw an error if the count increases to more than 1, which would mean something went wrong in the application logic, or
• use ISingleCallControl instead.