VoIP & Cellular Calling Modes
Choose internet calling or the Cellular option for supported U.S. setups, using your configured business number.
VoIP uses Wi-Fi or mobile data. Cellular is a separate mode labeled Only for USA. Check your business and mobile numbers, choose the mode before placing a call, and test the caller ID. This is not an automatic mid-call failover feature.
Availability depends on your setup; mobile-provider charges may apply.
Setup guide: VoIP & Cellular Calling Modes