This means that your alarm has tried to communicate with the monitoring station and did not succeed in connecting to it. It could be as simple as the phone line is dead to the alarm, or it tried to during a storm and the phone was not in service when it happened. If you have had your phone line cutoff, or changed your phone service, you will need to have a “Cellular Communicator” installed on your alarm system. If you are sure that your method of communication is not broken, then to clear the message just put your system “ON TEST” and set it off, once the alarm is able to communicate the message will clear on its own.
WHAT DOES “COMMUNICATION FAILURE” MEAN ON MY CADDX ALARM
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