Features
Automatic Callback (ACB)
Strata DK Digital Telephone 10/01 25
Automatic Callback (ACB)
After reaching a busy/DND station, you can set ACB to have the system call you bac k
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