Ascotel IntelliGate 2025/2045/2065
328 Call Routing Part 2
Fig. 2.88: Connecting two incoming calls
Preventing pointless Exchange-to-Exchange Connections
To prevent exchange-to-exchange connections being set up with announcement
services or with special numbers (e.g. info boxes), the numbers concerned should
be barred in the digit barring.
5.5.2 Transferring Call Forwarding Unconditional to the
Exchange
Internal subscribers can have their terminal diverted to external destinations When
an external subscriber calls the destination diverted externally, the exchange-to-
exchange connection created occupies two B channels.
The system can be configured so that such call forwarding are transferred from
the PBX to the public network, thus freeing the two B channels. To do so, the sys-
tem automatically activates the supplementary services partial rerouting (in point-
to-point operation) and call deflection (in point-to-multipoint operation).
The subscribers themselves are not aware of this process.
The called subscriber in the public network is presented with the caller's CLIP as
well as information on who redirected the call.
Subscriber B
Subscriber C
Subscriber A
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PBX
PBX
PBX
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