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Automatic Callback (ACB)
Features
23
Automatic Callback (ACB)
After reaching a busy/DND station, you can set ACB to have the system call you when the
called station becomes available. You can also set ACB to place you in a queue for an available
CO Line, if you reach a line group in which all lines are busy.
➤
To set ACB
1. Press
#,
...or
.
You hear a busy tone, followed by dial
tone for two seconds, then busy tone.
When you set ACB at a busy line
group, its access code number (
801
) is
displayed.
2. Hang up
...or press
(
.
You can make other calls while waiting for the called
station/line to become available.
Your telephone rings at a fast rate
when the called station or CO Line
becomes idle.
The busy or DND station LED flashes
(incoming call) and its number (
210
) is
displayed when it becomes available.
The CO Line LED from which you
attempted to first access the line
flashes red (incoming call rate). The
seized line number (
3
) is displayed.
3. Press [DN] to answer
the call within three
rings.
After you answer, you hear a single tone, and the LED flashes.
If you hear a busy tone after answering a callback, the called
party is already on another call or the line has been seized.
Your request is not cancelled. You are called again the next
time the line is idle.
NO. 204
INT 210 ACB SET
NO. 204
INT 801 ACB SET
NO. 204
210 ACB
NO. 204
LINE 3 ACB