CallControlScope

interface CallControlScope : CoroutineScope

// initiate a call and control via the CallControlScope
mCallsManager.addCall(
    callAttributes,
    onAnswerLambda,
    onDisconnectLambda,
    onSetActiveLambda,
    onSetInActiveLambda
    ) {
    // This block represents the CallControlScope. Once Telecom has added the call to the
    // system, your application can start changing the call state (via setActive(), etc.),
    // collect the flows.


      // Your application should gate ALL CallControlScope suspend functions with UI logic or
      // logic that signals the call state is ready to be changed
      launch {
             when (val res = setActive() ) {

               is CallControlResult.Success -> {
                 // Telecom can place the active
                 // update your call state and handle UI
               }

               is CallControlResult.Error -> {
                 // Telecom cannot set your VoIP call active. Maybe there is an ongoing
                 // active call that cannot be held. Check the failure code to determine the
                 // recommended next action
                 handleErrorCode( res.errorCode )
               }
              }
            }
       }

      // Collect updates
      launch {
         currentCallEndpoint.collect { // access the new [CallEndpoint] here }
      }

      launch {
         availableEndpoints.collect { // access the available [CallEndpoint]s here }
      }

      launch {
         isMuted.collect { // access to the mute state }
      }
  }