It sounds more like the panel failed to call a proper CS and get the proper handshake, kissoff, etc. Why don't you set up a NextAlarm account so you have a CS to dial into? It doesn't cost anything until you activate the account.v1rtu0s1ty said:Anyways, going back to Steve's information on FAILED TO COMMUNICTE, was it because, when I heard the alarm within 2 seconds, I entered the code immediately to disarm it? So the controller failed to call the number?