instaVC.sendCommand(<remote-id>, <command-string-or-json>)
- Send given command to remote user. By using this fuction,
you can implement Calling futre or chat futre.
e.g. 1. {type: 'Chat', value: 'hi', sender: 'Ram'}
2. {type: 'Call', value: 'initiate-call', callfrom: 'Ram'}
and handle above data in command-received event.