Nortel ICS Install Manual page 142

142 / Private networking using PRI SL-1
Additional Configuration
In this example, outgoing public network calls dialed from a
Norstar telephone are passed to the Meridian 1, and the
Meridian 1 is responsible for seizing a public trunk. For this
reason, the 9 prefix is left in the number passed to the
Meridian 1.
This necessitates modifying the Public DN lengths table on
each Norstar to account for the extra leading digit. Essentially,
the eight pre-configured entries are modified to include a
leading 9 in the prefix digits, and the length value for each
entry is increased by one.
The new entries are listed below.
Carrier codes:
If a system has a different long-distance service from the local
service, or if the long-distance service changes within the
schedules, the routing tables can be set up to include a carrier
code. You define the code under System Programming/
Access codes/Carrier codes. You then refer this to the
routing tables in Services/Routing Service/route/
Modular ICS 7.1 Installer Guide
Prefix
Default
90
900
901
9011
91
9411
9911
Length
8
12
13
18
19
12
4
4
N0130943 02