Cisco 1721 - Manual (Page 79)

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Cisco 1721 Router Hardware Installation Guide
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A P P E N D I X
D
Ordering and Configuring an ISDN
Line
This appendix tells how to order and configure an Integrated Services Digital
Network (ISDN) Basic Rate Interface (BRI) line for use with a Cisco 1721 router
with an ISDN BRI WIC installed.
This appendix contains the following sections:
• ISDN BRI Line Configuration Requirements
• ISDN BRI Switch Types
• ISDN BRI Provisioning by Switch Type
• Defining ISDN Service Profile Identifiers
• ISDN Configuration Options
ISDN BRI Line Configuration Requirements
Before using a Cisco 1721 router with an ISDN BRI WIC installed, you must
order a correctly configured ISDN BRI line from your local telecommunications
service provider.
This process varies dramatically from provider to provider, both nationally and
internationally. However, the following are some general guidelines:
• Ask for two channels to be called by one number.
• Ask for delivery of calling-line identification. This is also known as caller ID
or automatic number identification (ANI).