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Automatic Callback (ACB)
Strata DK Electronic Telephone 5/00 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.
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) displays.
2. Hang up
...or press 63.5.
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 is idle.
The busy or DND station
LED flashes (incoming call)
and its number (
210)
displays when it is 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.
If the original call was made using LCR, the telephone
number is automatically dialed. If you did not use
LCR, you have to redial the telephone number.
NO. 204
INT 210 ACB SET
NO. 204
INT 801 ACB SET
NO. 204
210 ACB
NO. 204
LINE 3 ACB