Call routing
183
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
[1] One and the same trunk group cannot contain both analogue and digital network interfaces
Fig. 77 Routing and destinations of an incoming call
Call routing depends in principle on whether a call originates
• from the public network or
• from the private leased-line network (QSIG) and
• whether there is a suitable direct dial number for the phone number.
In terms of call routing, calls from a virtual PISN are handled in the same way as
calls from the public network.
The diagram below shows how an incoming call is routed:
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