Build a JSSIP VoIP mobile app with capable of handling multiple call

The project is a VoIP calling app that utilises JSSIP library for react native, We have integrated react-native-callkeep. Recently we are facing some issues with multiple call handling.

https://github.com/react-native-webrtc/react-native-callkeep/issues/589

Please have a look and post a proposal if you can solve this issue.

Thanks