public bool RegisterClientForPushNotifications(string channelURI)
{
bool ret = false;
if (!String.IsNullOrEmpty(channelURI))
{
_pushNotificationSender = new PushNotificationSender();
_pushNotificationSender.OnChannelURIExpired += OnUserChannelURIExpired;
_pushNotificationSender.ChannelURI = channelURI;
ret = true;
}
return ret;
}