Advanced Caller ID is compatible with carriers supporting Conditional Call Forwarding. You need to make sure you have this feature activated in your pricing plan. We are actively working on solving this limitation and extending Advanced Caller ID to carriers that support Unconditional Call Forwarding.
In the US, Advanced Caller ID is compatible with AT&T, Bluegrass Cellular, C Spire, Cricket,Spectrum, Sprint, T-Mobile, Ting, Union Wireless, US Cellular and Verizon.
In Canada, Advanced Caller ID is compatible with: Airtel Wireless,Fido, Globalstar, Koodo Mobile, MTS, Rogers, Telus and Videotron