We installed an OBI202 at the end of 2020 to replace our previous cable company phone service which was some form of VOIP. With the cable company and with the OBI202, the alarm system never had issues communicating with the monitoring service equipment.
I noticed the alarm system now fails to communicate with the monitoring service about two weeks ago. At first, I had attributed the alarm panel's processor hung on corrupted data from an extended power outage that exhausted the backup batteries. I disconnected the batteries and the AC power to re-boot the processor. No change, it is still reporting a comm failure error.
I did check for dial tone on the main board of the alarm panel with a butt set.
We have altered nothing in the configuration of the alarm system or in the OBI202. However, the 08/05/2021 firmware update coincides with the alarm panel comm failures. Is there something in that update that would cause this issue?
We understand some do not recommend the OBI/Google Voice for alarm system communications. We have a large 16kva UPS that backup our internet head end, OBI and phone system. We have been comfortable with the level of reliability it has provided. Our backup power lasts as long as our ISP's transmission line backup power.