Code inside endCall listner is not executed when device is in locked state.

[krupalikevadiya]

I received VOIP push notification in IOS device and display incoming call screen over lock screen when device is locked. When i unlock device through slide to unlock and end incoming call through cancel button i got log inside endCall listener but i have to call API to end call at sender side and for that i call api but without getting any response from api my device is again locked and after that no any code is executed.Can you please suggest me any way to resolve my issue? I want to disconnect call at sender side when receiver end calls.