CCBS – COMPLETION OF CALLS TO
BUSY SUBSCRIBER
CALL SERVER : TELEPHONE FEATURES
Ed. 042/4 Réf. 3EH 21000 BSAA
T Modify (or not) the timeout during which the party requesting a CCBS on an outgoing call is rung
(25 seconds by default); at the end of the timeout the CCBS is cancelled:
CCBS ACTIVATION/CANCELLATION ON OUTGOING CALLS
When a call is made to a public network user B whose line is busy, CCBS enables a user A with an
Alcatel OmniPCX Office system to leave a call back request at the public exchange. When the public
exchange informs the Alcatel OmniPCX Office system that B is free, Alcatel OmniPCX Office calls back
A, and when A answers, it makes an automatic call back to B.
Attention :
Only one automatic call back request can be activated on a set: automatic call back to busy set, auto-
matic call back to busy trunk or CCBS. Any new CCBS request cancels the previous one.
CCBS ACTIVATION/CANCELLATION ON INCOMING CALLS
When a public network user (A) calls a busy Alcatel OmniPCX Office system set (B), A can activate the
CCBS service provided by the public exchange. When the Alcatel OmniPCX Office system informs the
public exchange that B is free, the public exchange calls back A, and when A answers it makes an
automatic call back to B.
- by MMC-PM5 (Expert View): System Miscellaneous -> Memory Read/Write -> Timer La-
bels -> "BookRecTim"
-by MMC-Station: Global -> Rd/Wr -> Timer -> "BookRecTim" -> Return -> Memory
All stations (inclu-
ding Z)
Without display (≠ Z) With display, no soft
keys
With soft keys
CCBS request Automatic call back re-
quest code
P.K.: Automatic call-
back request
P.K.:
oCback S.K.: oCback
CCBS cancellation Cancellation prefix P.K.: Cancel callback
P.K.:
nCback S.K.: nCback, before
or during callback
Type of statio
Type of service
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