Recognizing a TTY Call
Where TTYs share a voice line, it is important that persons answering the phone know how to recognize a TTY call. A series of beeping tones is the most common signal (made when the person calling taps the keyboard space bar) but not all models emit this sound. Some models are equipped with voice announcers. Since there may not always be an audible cue by the caller, check to see if it is a TTY call when nothing is heard. (When a call is made through the TTY relay service, the service operator will indicate by voice that it is a TTY relay call.)
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