Nortel BCM 3.7, Manual

Page: 331 / 1004

Configuring call routing 331
Programming Operations Guide
Figure 97 Configuring a carrier code prefix ID length
5 Use the following table for information about the two fields on this screen.
Configuring call routing
Call routing allows you to define how calls are routed by your Business Communications Manager
system.
The following figure shows a detailed view of the Call Routing programming map.
Table 59 Carrier access code values
Attribute Values Description
Code prefix <one to six digits>
(Read-only) This value defines the prefix that will be used to access the carrier
code.
ID length 1, 2, 3, 4, 5, 6, 7, 8, or 9 This value defines the carrier ID length.
Task:
• Set up routes to external numbers using a specific line pool:
— “Defining routes” on page 333
— “Programming the PRI routing table” on page 337
• Enter destination codes to key access to a route: “Using destination codes” on page 338
• Assign schedules for special routing requirements:
— “Setting up a destination for local calling” on page 344
— “Adding Carrier access codes to destination codes” on page 346
— “Programming for least-cost routing” on page 347
— “Using multiple routes and overflow routing” on page 348