Routing elements
121
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
5. 3. 1 The Route’s Routing Functions
The route is allocated the following outgoing routing functions:
• Routing an outgoing call to one or more trunk groups
• Restricting the number of calls outgoing simultaneously
• Polling an external digit barring
• Deleting the exchange access prefix
• Adding a prefix to the call number (where required)
• Specifying numbering plan identifier NPI
• Specifying how many digits need to be dialled before a call is set up
5. 3. 2 Routing an Outgoing Call to a Trunk Group
Up to 8 trunk groups can be entered for each route (Trunk group setting). Within a
route the bundles are seized from front to back (small numbers first); within the
bundle, the network interfaces from back to front (large numbers first). The seizure
sequence is illustrated in Fig. 48
Fig. 48 Seizure sequence for network connections in the case of an outgoing call
If both analogue and digital network interfaces are being used, one trunk group
has to be entered in each route for the analogue interfaces and one trunk group for
the digital interfaces since a trunk group can only contain either analogue or digital
interfaces.
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