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Automatic Callback (ACB)
Strata DK Digital Telephone 5/99 21
➤ To cancel ABR
➤ Press $XWR%XV\5HGLDO
...or [DN] + .
Automatic Callback (ACB)
After reaching a busy/DND station, you can set ACB to have the system call you back 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. After reaching either
a busy/DND station
or CO line, press
$XWR&DOOEDFN
...or
.
You hear busy tone, followed by dial
tone (two secs.), then busy tone.
When you set ACB at a busy station,
its number (
210) displays.
When you set ACB at a busy line
group, its access code number (
801) is
displayed.
2. Hang up
...or press
6SNU.
You can make other calls while waiting for the called station/
line to become available.
3. Your telephone rings
at a fast rate when the
called station or CO
line becomes idle.
For busy/DND station: the [DN] LED
flashes green (incoming call). The
station number you called (
210)
displays.
For busy CO line: the [DN] LED from
which you attempted to first access
the line flashes red (incoming call
rate). The seized line’s number (
3)
displays.
NO. 204
INT 210 ACB SET
NO. 204
INT 801 ACB SET
NO. 204
210 ACB
NO. 204
LINE 3 ACB