The user dials the number of the person they wish to call on the CapTel 800 phone. The call is transparently connected over the phone line to a service that provides the captions. At the Captioning Service, a specially-trained operator uses voice-recognition technology to transcribe whatever is said by the other party. The captions appear on the CapTel 800 display screen. User can hear the other party, plus read the captions to be certain of what is said.
NOTE: The CapTel 800 phone does not generate captions of the phone call on its own. The phone works with the Captioning Service (over the telephone line) to display captions during your calls.