3Com 3C10402B, Руководство администратора

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Configuring and Managing Digital Line Cards 177
4 In the Carrier Identification Code field, type the identification code for
your long-distance carrier.
Your long-distance carrier can supply this code when you order PRI
services, or you can ask the carrier for their code number. Another way to
obtain the code is to access the web site for the North American Number
Plan Administration (
http://www.nanpa.com ). In the menu in the left
frame, click Numbering Resources > Carrier Identification Codes (CIC) .
Click the appropriate links to view the Feature Group B CIC and Feature
Group D CIC assignments. Search the documents to determine the
identification code for your long-distance carrier. For example, AT&T is
listed next to code 288 in the Group D document.
5 From the Default Outbound Service drop-down list, select either
MEGACOM or Standard (LDS) as the service to use as the default. You
can configure the system dial plan to use a particular service.
Select MEGACOM as the default service only if you purchased
MEGACOM from your long-distance carrier. You cannot select Standard
(LDS) as the default service if you purchased MEGACOM, because these
two services do not work together.
6 Click OK .
Adding or Modifying
a Digital Line Card
Group
A Digital Line Card group is one or more channels that are assigned the
same characteristics, such as Channel Protocol.
These sections tell you how to perform these tasks:
■
Adding a Digital Line Card Group
■
Modifying a Digital Line Card Group
■
Changing Digital Line Card Group Membership
■
Removing a Digital Line Card Group
Adding a Digital Line Card Group
You add a new group when you need to assign common characteristics
to several Digital Line Card channels.
To add a Digital Line Card group:
1 Click the appropriate link:
■
PSTN Gateway Configuration > T1 Groups
■
PSTN Gateway Configuration > ISDN PRI Groups