My Lord what a weird night. I got in bed at twelve-thirty. I fell asleep at two, woke up at three-thirty, fell asleep at four. At 8:56 the alarm went off and I don't mean the radio/alarm I mean the house alarm. That is a first (and I hope last). I was so tired and so disoriented I didn't know what was happening. I finally realized where the sound was coming from (the alarm center in the kitchen). Once there and once my eyes focused, the alarm control panel read PH1. I had no idea what that meant and quickly checked all the doors and windows all of which were fine. I found my instruction sheet, entered my code plus "enter" and it stopped. Then I called the security company and asked what that was about. Apparently from 8:56 to 8:57 there was an "interruption" in the phone line, i.e. the phone line went down for less than a minute - that causes the alarm to go and is what "PH" means. I asked her what would have happened if the line hadn't come right back up - she said the alarm would have just kept ringing. That's not good, but if it should ever happen again I can call and have them power down the system.