Ascotel IntelliGate 2025/2045/2065
350 Call Routing Part 2
Planning the routes and trunk groups
To keep a network configuration as transparent as possible, it is a good idea
always to use the same trunk group and the same route for the same function on
all the PINXs. It makes sense, for example, to use trunk group 1 in each PINX for
connections to the public ISDN network as trunk group 1 has this initialization
value.
Settings on the source PINX (PINX 1):
• Subscriber configuration:
A permanent CLIP number is configured for internal subscribers in Geneva,
which is transmitted unchanged along with each outgoing call to the public
network.
• Least Cost Routing:
The initial digits of the numbers within the Zurich local rate zone are entered
in the LCR table and allocated a route via the routing and network operator
table
(see also "Least Cost Routing (LCR)", page 304).
• Setting up routes:
– All calls sent to the public network via Zurich are routed via a separate route.
Its configuration must
include the setting NPI = E.164 so that PINX 2 recognizes a call as external
and routes it accordingly.
– All calls addressed to PINX 2 subscribers in Zurich are routed via another
route whose configuration contains the setting NPI = PNP.
– Both routes can be allocated to the same trunk group.
• Trunk group settings:
– Network = Private
– Protocol = PSS1
– Automatic CLIP = Yes
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