diff --git a/package.json b/package.json
index 8e7c8fd..1a74f24 100644
--- a/package.json
+++ b/package.json
@@ -26,11 +26,7 @@
   "license": "MIT",
   "licenseFilename": "LICENSE",
   "readmeFilename": "README.md",
-  "peerDependencies": {
-    "react-native-webrtc": "^1.75.1"
-  },
   "devDependencies": {
-    "react-native-webrtc": "^1.75.1",
     "react-native-background-timer": "^2.1.1"
   }
 }
diff --git a/src/verto/Call.js b/src/verto/Call.js
index b748b83..6289f05 100644
--- a/src/verto/Call.js
+++ b/src/verto/Call.js
@@ -12,7 +12,7 @@ import {generateGUID, ENUM} from './utils';
 import {Clipboard} from 'react-native';
 import BackgroundTimer from 'react-native-background-timer';
 
-BackgroundTimer.start();
+//BackgroundTimer.start();
 
 export default class Call {
   constructor(direction, verto, params, mediaHandlers = {}) {
@@ -75,6 +75,9 @@ export default class Call {
         this.ring();
       }
     }
+
+    this.causeCode = null;
+    this.cause = null;
   }
 
   bootstrapRealtimeConnection() {
@@ -264,7 +267,13 @@ export default class Call {
 
       case ENUM.state.hangup:
         if (isAfterRequesting && isBeforeHangup) {
-          this.broadcastMethod('verto.bye', {});
+          var params = {};
+          if (this.cause != null && this.causeCode != null)
+            params = { causeCode:this.causeCode, cause: this.cause };
+
+          this.broadcastMethod('verto.bye', params);
+          this.causeCode = null;
+          this.cause = null;
         }
 
         this.setState(ENUM.state.destroy);
@@ -333,7 +342,7 @@ export default class Call {
       this.cause = params.cause;
     }
 
-    if (!this.cause && !this.causeCode) {
+    if (this.cause === null && this.causeCode === null) {
       this.cause = 'NORMAL_CLEARING';
     }
 
diff --git a/src/verto/VertoClient.js b/src/verto/VertoClient.js
index b07e540..f65c1ce 100644
--- a/src/verto/VertoClient.js
+++ b/src/verto/VertoClient.js
@@ -14,7 +14,7 @@ import {generateGUID, ENUM} from './utils';
 import {Params, defaultVertoCallbacks, eventType} from '../store';
 import BackgroundTimer from 'react-native-background-timer';
 
-BackgroundTimer.start();
+//BackgroundTimer.start();
 let sessionIDCache;
 
 export default class VertinhoClient {
@@ -78,7 +78,7 @@ export default class VertinhoClient {
       onWebSocketLoginSuccess: () => {},
       onWebSocketLoginError: error =>
         printError('Error reported by WebSocket login', error),
-      onPeerStreaming: () => {},
+      onPeerStreaming: (stream) => this.callbacks.onStreamReady(stream),
       onPeerStreamingError: () => {},
       ...this.params,
       ...this.callbacks,
@@ -141,7 +141,7 @@ export default class VertinhoClient {
     this.webSocket.onopen = () => {
       if (this.retryingTimer) {
         printWarning('Successfully WebSocket attempt to reconnect.');
-        clearTimeout(this.retryingTimer);
+        BackgroundTimer.clearTimeout(this.retryingTimer);
       }
 
       this.publish('login', {});
@@ -551,7 +551,7 @@ export default class VertinhoClient {
 
   destroy() {
     if (this.retryingTimer)
-      clearTimeout(this.retryingTimer);
+      BackgroundTimer.clearTimeout(this.retryingTimer);
     if (this.socketReady()) {
       this.webSocket.close();
       this.purge();
diff --git a/src/webrtc/FSRTCPeerConnection.js b/src/webrtc/FSRTCPeerConnection.js
index 2e94dde..7c3b3ba 100644
--- a/src/webrtc/FSRTCPeerConnection.js
+++ b/src/webrtc/FSRTCPeerConnection.js
@@ -10,7 +10,7 @@
 import {RTCPeerConnection, RTCSessionDescription} from 'react-native-webrtc';
 import BackgroundTimer from 'react-native-background-timer';
 
-BackgroundTimer.start();
+//BackgroundTimer.start();
 
 export default class FSRTCPeerConnection {
   constructor(options) {
@@ -79,14 +79,26 @@ export default class FSRTCPeerConnection {
       }
     };
 
-    peer.onaddstream = event => {
+    /* peer.onaddstream = event => {
       const remoteMediaStream = event.stream;
+      if (onRemoteStream) {
+        onRemoteStream(remoteMediaStream);
+      }
+    }; 
+    peer.addStream(attachStream);*/
 
+    peer.ontrack  = event => {
+      //const remoteMediaStream = event.stream;
+      const remoteMediaStream = event.streams[0]; 
       if (onRemoteStream) {
         onRemoteStream(remoteMediaStream);
       }
     };
-    peer.addStream(attachStream);
+    
+    attachStream.getTracks().forEach(track => {
+      console.log('Peer add track ',track);
+      peer.addTrack(track, attachStream);
+    });
 
     if (onOfferSDP) {
       peer