diff --git a/package-lock.json b/package-lock.json
index adb6c72..486a2c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "ocast-sdk",
-  "version": "1.0.8",
+  "version": "1.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/src/channel/channel.ts b/src/channel/channel.ts
index bf450f7..e99a3e5 100644
--- a/src/channel/channel.ts
+++ b/src/channel/channel.ts
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import {OCast} from "../ocast";
 import {Transport} from "../protocol/transport";
 import {TransportMessage} from "../protocol/transport.message";
 import {EnumError} from "../type/enum.error";
@@ -32,6 +31,7 @@ const Log: Logger = Logger.getInstance();
  */
 export class Channel {
     protected static sequenceMessage: number = 1;
+    private waitingReplies: {[key: string]: (transport: Transport) => void} = {};
 
     private ws: WebSocket = null;
 
@@ -52,6 +52,14 @@ export class Channel {
      * @param {Transport} transport - message received
      */
     public onMessage(transport: Transport) {
+        if (transport.type === EnumTransport.REPLY) {
+            const id = transport.id;
+            if (this.waitingReplies[id]) {
+                this.waitingReplies[id](transport.message.data);
+                delete this.waitingReplies[id];
+            }
+            return;
+        }
         Log.warn(TAG + "onMessage need to be implemented for namespace " + this.name);
         this.sendReply(transport.id, transport.src, {params: {code: EnumError.NO_IMPLEMENTATION}});
     }
@@ -89,7 +97,10 @@ export class Channel {
         const message = new Transport(UUID, dst, EnumTransport.COMMAND, Channel.sequenceMessage++,
             new TransportMessage(this.name, data));
         Log.debug(TAG + "sendCommand : " + JSON.stringify(message));
-        this.sendMessage(message);
+        return new Promise((resolve, reject) => {
+            this.waitingReplies[message.id] = resolve;
+            this.sendMessage(message);
+        });
     }
 
     /**
diff --git a/src/index.ts b/src/index.ts
index 922be9b..cefcdff 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -15,21 +15,22 @@
  */
 import "./channel/media.notifier";
 
-export {EnumError} from "./type/enum.error";
-export {EnumMediaStatus} from "./type/enum.media.status";
-export {EnumMedia} from "./type/enum.media";
-export {EnumTrack} from "./type/enum.track";
-export {EnumTransferMode} from "./type/enum.transfermode";
-export {Channel} from "./channel/channel";
-export {MediaChannel} from "./channel/media.channel";
-export {WebappChannel} from "./channel/webapp.channel";
-export {Media} from "./media/media";
-export {IMediaNotifier} from "./channel/media.notifier";
-export {VideoMedia} from "./media/video.media";
-export {ImageMedia} from "./media/image.media";
-export {PlaybackStatus} from "./protocol/playback.status";
-export {Metadata} from "./protocol/metadata";
-export {VideoPlaybackStatus} from "./media/video.playback.status";
-export {Logger} from "./util/logger";
-export {OCast} from "./ocast";
+export { EnumError } from "./type/enum.error";
+export { EnumMediaStatus } from "./type/enum.media.status";
+export { EnumMedia } from "./type/enum.media";
+export { EnumTrack } from "./type/enum.track";
+export { EnumTransferMode } from "./type/enum.transfermode";
+export { EnumTransport } from "./type/enum.transport";
+export { Channel } from "./channel/channel";
+export { MediaChannel } from "./channel/media.channel";
+export { WebappChannel } from "./channel/webapp.channel";
+export { Media } from "./media/media";
+export { IMediaNotifier } from "./channel/media.notifier";
+export { VideoMedia } from "./media/video.media";
+export { ImageMedia } from "./media/image.media";
+export { PlaybackStatus } from "./protocol/playback.status";
+export { Metadata } from "./protocol/metadata";
+export { VideoPlaybackStatus } from "./media/video.playback.status";
+export { Logger } from "./util/logger";
+export { OCast } from "./ocast";
 export { Transport } from "./protocol/transport";
diff --git a/src/ocast.ts b/src/ocast.ts
index 88bb62a..1d67a1f 100755
--- a/src/ocast.ts
+++ b/src/ocast.ts
@@ -104,6 +104,13 @@ export class OCast {
   public getChannel(service: string): Channel {
     return this.channels[service] as Channel;
   }
+  /**
+   * Initialize MediaChannel
+   * @private
+   */
+  public setupChannel(channel: Channel): void {
+    this.channels[channel.name] = channel;
+  }
   /**
    * Initialize MediaChannel
    * @private