AUTOMATIC CALLBACK ON BUSY
TRUNK GROUP
CALL SERVER : TELEPHONE FEATURES
Ed. 042/2 Réf. 3EH 21000 BSAA
CANCELLATION
Prefix: Code programmed in the "Features in Conversation" table
(**) The automatic call back request is also cancelled if:
- the person requesting call back does not go off hook within 25 seconds or presses the "Release"
key during these 25 seconds
- no line in the trunk group becomes free within 30 minutes
- all the resources of the person requesting call back are busy
- after the person requesting the callback has answered, all the lines in the trunk group return to
busy.
ADDITIONAL INFORMATION
- A user can leave only one type of automatic call back request at a time: on busy station or trunk
group.
- If the automatic call back request is accepted, the user hears the dial tone if he is off hook and
switches to the idle status in hands-free mode.
- An automatic call back request does not follow call diversion (not even a "Do Not Disturb").
- The system accepts as many automatic call back requests on a busy trunk group as it contains lines.
- Automatic call back cannot be picked up (see "Call pick-up").
- Automatic call back which the requesting party does not answer is not recorded in the directory of
unanswered calls.
All stations (including
Z)
Without display (≠ Z) With display, no soft
keys
With soft keys
Automatic call back (**) Prefix P.K.: Cancel callback
P.K.: nCback S.K.: nCback, before
or during callback
Type of service
Type of statio
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