System Functions and Features as of I7.9
Call routing
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5. 5
Outgoing traffic
All outgoing calls are routed to a network via a route. The authorization to make
outgoing calls can be specified for each user (
). Digit barring facilities can
also be used to regulate dialling access on the basis of the numbers dialled
(
). The feature "Priority exchange allocation" can be used to give priority
to a user wishing to set up an outgoing call(
). The LCR (Least Cost Routing)
function is used to control automatically the path (in the PBX and in the network)
via which an outgoing call is to be routed (
).
5. 5. 1
Routing
All outgoing calls are routed to a trunk group via a route. They include calls routed
via the Least Cost Routing function or transit calls in a PISN. Different types of call
destinations have to be routed via different routes. For example calls to the private
leased-line network must not be routed via the same routes as calls to the public
network.
[1]
One and the same trunk group cannot contain both analogue and digital network interfaces.
Fig. 68
Routing outgoing calls
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