System interfaces
45
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
Example: Exchange access via exchange access prefix
Fig. 16 Example of the exchange access prefix via up-circuit communication server
The following configuration steps are necessary:
1. The exchange access prefix of the up-circuit communication server must be entered
in the exchange digit barring ( Exchange digit barring).
2. The corresponding analogue trunk lines are set to Behind communication server.
Consequence:
– The external digit barring is deactivated and the exchange digit barring is acti-
vated. The external digit barring of the up-circuit communication server has to be
used.
– Incoming calls are forwarded transparently to the user.
3. The corresponding analogue trunk lines are to be configured to the correct Dial
sort. If the up-circuit communication server provides DTMF and pulse dialling for in-
ternal users, it is advisable to configure DTMF.
Example: Enquiry call behind communication server
This feature can be used from both analogue terminals and system phones.
Fig. 17 Enquiry call behind communication server
0
0
– – 032 6000 00 00
Exchange seizure
When a number is via Line key dialled, all characters prior to
the followed hyphen are suppressed
Exchange seizure on up-circuit communication server
Waiting for exchange-free tone or dialling after e.g. 6 sec.
(The duration of the interdigit pause can be set.)
DSI
FXS
Up-circuit
communi-
cation
server
S bus
Communi-
cation
server
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