Audio is not working on Call connection

Help
1

I have initiated an offer from iOS build and tried to connect on the other side android build, Call was connected successfully but Peers were unable to listen each others audio. I am not sure where I am committing mistake. Reply will be appreciated.

RN : 0.59.9
react-native-webrtc : 1.67.1
React : 16.8.6

"{"active":true,"_tracks":[{"_enabled":true,"id":"CC75D414-177F-45F2-B444-B647E12933A5","kind":"audio","label":"CC75D414-177F-45F2-B444-B647E12933A5","muted":false,"readonly":true,"remote":false,"readyState":"live"}],"id":"4D60CB66-26D3-4198-9183-F3ED0D49C7F6","reactTag":"4D60CB66-26D3-4198-9183-F3ED0D49C7F6"}"

The code for constraints are down below:

const getLocalStream = () => {
  
  let constrains = {
    audio: true,
    video: false
  };
  let getStream = stream => {
    join("SWN");
    localStream = stream;
     appClass.setState({
      streamURL: stream.toURL(),
      status: 'ready',
      info: 'Calling...',
    });
  };
  
  getUserMedia(constrains, getStream, logError);
};