public static Task UnlockConferenceAsync(this ConferenceSession session,
                                          UnlockConferenceOptions options)
 {
     return(Task.Factory.FromAsync(session.BeginUnlockConference,
                                   session.EndUnlockConference, options, null));
 }
 public static Task UnlockConferenceAsync(this ConferenceSession session,
     UnlockConferenceOptions options)
 {
     return Task.Factory.FromAsync(session.BeginUnlockConference,
         session.EndUnlockConference, options, null);
 }