AT&T TL7700 Headphones User Manual


 
3
Getting started
One short beep Headset key tone.
One short beep
every 30 seconds
Muted headset microphone alert tone.
Two beeps Error alert tone.
The ringer volume is at its lowest setting.
The listening volume is at its highest or
lowest setting.
Any key is pressed while the headset is
out of range
Two low beeps Call waiting alert tone.
Two rapid beeps
every 20 seconds
Low battery warning.
Three rising beeps A conference call starts.
Three rapid beeps
every 20 seconds
The headset is out of range.
The headset is not yet registered.
Ring tone Incoming call alert tone.
Ring back tone.
Three rapid beeps The headset is powering on or off.
Quick reference guide - headset
Headset alert tones