AT&T 8520T - Manual (Page 17)

Automatic Callback
■
To automatically place
another call to an 1 Press [ Auto Callback ] during call attempt
[confirmation dial tone]
extension that was busy
or did not answer
●
Green light goes on steadily until call is
completed or canceled
2 Hang up
●
You will receive a 3-burst priority ring when the
extension you attempted to call is available
Note: After you activate Automatic Callback, the
system monitors the called extension. That
extension becomes available after the called party
completes a call.
3 Lift handset when you hear priority ring
[ringback tone]
●
A call is automatically placed to that extension,
which receives regular ringing
Note: You can place only one Automatic Callback
call at a time, and Automatic Callback is canceled
after 30 minutes or if the callback call is
unanswered.
To cancel an
1 Dial Automatic Callback cancel code
Automatic Callback
[confirmation tone]
request
●
Green light goes off
14