the analog telephone adapter (ATA) delivers dial-tone, manages the call setup and provides the conversion between digital and analog voice. See IP phone and VoIP. THIS DEFINITION IS FOR PERSONAL ...

(1) (Voice Over IP modem) A device that converts Internet-based voice service from the cable or telephone company to the user's telephones. Officially called an analog telephone adapter.

Most analog telephone adapters (ATAs) resemble a phone router ... which quickly adapts your landline to VoIP and includes smart home compatibility with devices like Nest and Google Home.