Cisco Systems 1700 manual Defining Isdn Service Profile Identifiers

Appendix D Ordering and Configuring an ISDN Line

Switch Type	Provisioning
5ESS National ISDN	Terminal type = A
(NI1) BRI	2 B channels for voice and data
	2 directory numbers assigned by service provider
	2 SPIDs required; assigned by service provider
	Set speed for ISDN calls to 56 kbps outside local exchange
	Directory number 1 can hunt to directory number 2
DMS-100 BRI	2 B channels for voice and data
	2 directory numbers assigned by service provider
	2 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

Defining ISDN Service Profile Identifiers

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.

	Cisco 1700 Router Hardware Installation Guide
D-4	78-5405-03