Defining Isdn Service Profile Identifiers - Cisco 1721 - VPN Security Router Bundle Hardware Installation Manual

Appendix D Ordering and Configuring an ISDN Line

Defining ISDN Service Profile Identifiers

Note
78-13834-02
Table D-2 Provisioning Required for ISDN Switch Types (continued)
Switch Type Provisioning
DMS-100 BRI Two B channels for voice and data.
Two directory numbers assigned by service provider.
Two SPIDs required; assigned by service provider.
Functional signaling.
Dynamic terminal endpoint identifier (TEI) assignment.
Maximum number of keys = 64.
Release key = no, or key number = no.
Ringing indicator = no.
EKTS = no.
PVC = 2.
Request delivery of calling line ID on Centrex lines.
Set speed for ISDN calls to 56 kbps outside local exchange.
Directory number 1 can hunt to directory number 2.
An ISDN service provider, usually a telephone company, can offer a variety of
services. Many providers use service profile identifiers (SPIDs) to identify the
device that is using the ISDN service, similar to the way that the telephone
company uses a telephone number to identify your standard telephone service. If
you use such a service provider, the provider assigns your ISDN device one or
more SPIDs when you first subscribe to the service. Providers use different
numbering schemes, but a SPID is usually a seven-digit telephone number, plus
some optional numbers.
The provider also assigns your device one or two local directory numbers (LDNs),
which function as the router telephone number. The LDN is the number that a
remote router dials to make a call to your router.
SPIDs have significance only at the local-access ISDN interface. Every router
that uses ISDN must be assigned SPIDs (if used by the service provider) by
the service provider for that router.
Defining ISDN Service Profile Identifiers
Cisco 1721 Router Hardware Installation Guide
D-5