Calls
Accept call
realtime.calls.accept(strcall_id, CallAcceptParams**kwargs)
POST/realtime/calls/{call_id}/accept
Refer call
realtime.calls.refer(strcall_id, CallReferParams**kwargs)
POST/realtime/calls/{call_id}/refer
Reject call
realtime.calls.reject(strcall_id, CallRejectParams**kwargs)
POST/realtime/calls/{call_id}/reject
Create call
realtime.calls.create(CallCreateParams**kwargs) -> BinaryResponseContent
POST/realtime/calls