Norstar Configuration - Nortel Modular ICS 6.0 Installer's Manual

106 / Dialing plans
With PRI call-by-call services, the only limitation is that there
are no more than 23 calls in progress at any one time.
The dialing plan at each Norstar site is configured to determine
the call type based on the digits dialed by the user. If a user in
Toronto wishes to dial a colleague in New York, they dial the
four-digit private DN (such as 6221). The dialing plan
recognizes this as a private network DN, and routes the call
using Tie service with a private numbering plan.
Incoming Tie calls are routed to sets based on the digits
received by the network, which in this case will be the four-
digit private DN.
If a user in either location wishes to dial an external number,
they dial 9, followed by the number (such as 9-555-1212). The
dialing plan recognizes this as a public DN, and routes the call
using Public service.
Incoming DID calls will be routed to sets based on the trailing
portion of the digits received by the network. For example, if
a public network user dials an employee in the Toronto office,
the network will deliver digits 4167632221. Norstar will route
the call using the last four digits, 2221.

Norstar Configuration

Heading
Toronto:
Hardware
Trk/Line Data
Line Access
Modular ICS 6.0 Installer Guide
Parameter
Card 1
Protocol
Line 245
Rec'd #
DN 2221
Line pool access
Setting
PRI
NI-2
Target line
2221
L245:Ring only
Line pool PRI-A
P0992638 03