A “Failure to Communicate” error occurs when the communication path fails. This could be caused by your phones being out, cell towers being worked on, or an equipment failure. If your monitoring is run through your landline phones, you should check if your phone’s handset has a dial tone.
If you want to manually test your system’s communications you can do so following these steps:
- Step 1 – Enter [*]+[Master Code]
- Step 2 – Enter 
Your horns will sound for 3 seconds and the keypad will flash. The alarm system will also attempt to send a Manual Test signal tp the Monitoring Station. If this is successful, the yellow triangle should clear, and you may hear 6 quick beeps around 30 second after the horns sound.