加入会议室后如何挂断群聊（Sinch JS SDK）

Question

我在我的angular 2应用程序上使用Sinch，当我加入一个小组时，我无法挂断电话。但是，当我是该频道的创建者时，它的效果很好。这是我正在使用的一些代码：

export class ConferenceComponent {

  remoteCalls: any[] = [];
  theChannel: string = "";
  groupCall: any;

  constructor(private globalsService: GlobalsService) {

  }

  joinChannel() {
    var _self = this;
    var callClient = this.globalsService.sinchClient.getCallClient();
    this.groupCall = callClient.callGroup(_self.theChannel);

    this.groupCall.addEventListener({
      onGroupRemoteCallAdded: function (call) {
        _self.remoteCalls.push(call);
        var callIdx = _self.remoteCalls.indexOf(call);
        $('video#other' + callIdx).attr('src', call.incomingStreamURL);
      },
      onGroupLocalMediaAdded: function (stream) {
        $('video#me').attr('src', window.URL.createObjectURL(stream));
        $("video#me").prop("volume", 0);
      },
      onGroupRemoteCallRemoved: function (call) {
        var callIdx = _self.remoteCalls.indexOf(call);
        _self.remoteCalls.splice(callIdx, 1);

        $('video[id^=other]').attr('src', function (index) {
          $('video#other' + index).attr('src', (_self.remoteCalls[index] || {}).incomingStreamURL || '');
        });
      },
    });
  }

  hangup() {
    this.groupCall.hangupGroup();
  }