That's what you need to figure out. First thing I would do is pull the plug at the alarm panel and see if the problem goes away. It is possible for the alarm panel modem to lock up off hook. While you are at the alarm panel with the RJ45 disconnected, plug your butt set into the alarm jack and see if there is dial tone. There should be. If not you have to trace the wiring back to the 66 block to see if there is a problem.

Yes, I almost always use the fax line (if there is one) for the alarm.

-Hal


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