Cabletron Systems CSX400-DC manual Isdn Line Information, Service Profile Identifications SPIDs

Planning for CSX400 ISDN Configuration

ISDN Line Information

You need to know the telephone switch type and phone numbers associated with the ISDN line. The telephone switch types supported are listed in Telephone Switch Support. The service provider gives you up to three sets of numbers for identifying the ISDN line and attached devices. You may be assigned none, one or two SPIDs or DNs and this varies by service provider and country.

Phone Numbers — Numbers used for others to dial into the ISDN B channels on your ISDN line (similar to analog line phone numbers).

Directory Numbers — Address assigned by the ISDN service provider for each device operating on the line. This number can be similar to the phone number. The Directory Number is not generally implemented outside the U.S.

Service Profile Identifications — SPIDs, also assigned by the ISDN service provider, identify the services and features that the switch provides to the ISDN device. Commonly implemented in the U.S. and Canada, the SPID is often derived from the directory number, combined in a series with other digits as shown in the example in Figure 4. SPIDs are not generally implemented outside of the U.S. and Canada.

PHONE NUMBER 555-1001 ISDN B CHANNEL

CSX400

CENTRAL OFFICE SWITCH

PHONE NUMBER 555-1002 ISDN B CHANNEL

EXAMPLES:	AT&T 5ESS
NORTHERN TELECOM DMS-100 SWITCH	POINT-POINT MODE: NO SPIDs
DNs = 5551001, 5551002	MULTI-POINT MODE: SPID = 0155510010 OR
SPIDs = 41555510011, 41555510022 OR	SPIDs = 01555100100, 01555100200
415555100101, 415555100202

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Figure 4 Service Profile Identifications (SPIDs)

Refer to Chapter 3, ISDN Line Ordering and Configuration, for further information about ISDN configurations and line ordering.

CSX400 and CSX400-DC User’s Guide 31