The proper thing to do is to have UPS to backup your system and Alarm Relay has not made any specific recommendation as far as that is concerned. I plan on purchasing a UPS for the pertinent devices, just haven't gotten around to it.
There is a Canadian Company that makes this device:
(
EnvisaLink 3)EVL-3 - Envisalink Internet Alert Module for DSC & Honeywell Security
https://www.eyez-on.com/EZMAIN/envisalink3.phpthat you can connect to your Ademco VISTA 20P and you can ARM and Disarm the System from you Android/iPhone phone and also receive SMS/Text messages of opening/closings and other alerts from your System. They can also monitor your alarm via IP Monitoring using this same device thru their
"EnvisAlarmâ„¢ service" (A Canadian UL Monitoring Company). Their Monitoring rates are much lower than ADT I'm sure. You can also monitor remotely any IP Cameras thru the EnvisaLink 3.
I recently ordered the device and waiting for its arrival to hook to my system. Will switch to monitroing through this device if and when Alarm Relay allows this.
Good Luck!!