Does my alarm system have an analog cellular transmitter that a cellular carrier may stop servicing?
If you received our mailing by direct mail or courier service, ADT records show that an analog cellular radio is part of your security system. Since a shut down of the cellular network that this radio uses would prevent that radio from transmitting signals to ADT, the analog transmitter needs to be replaced with a digital cellular transmitter to maintain the same level of service from ADT.
