ASHE has become aware that, effective on February 22, 2022, AT&T shut down its 3G services. T-Mobile (Sprint 3G backbone) will be deactivated on June 20, 2022 and T-Mobile (remaining 3G backbone) will be deactivated by July 1, 2022. Verizon began the retirement of its 3G network late last year and plans to completely retire the system by the end of 2022.

For facilities that use these service provider cellular communicators within their fire alarm system, this phaseout may result in the fire alarm system no longer communicating properly, causing a trouble indication within the fire alarm panel.