USER'S GUIDE HSIM-W6

Chapter 3: ISDN Line Ordering and Configuration

26 HSIM-W6 User’s Guide

Service Proﬁle Identiﬁers

SPIDs, also assigned by the ISDN service provider, identify the services and features that the

telephone company 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. SPIDs are not generally implemented outside the U.S. and Canada.

Telephone Switch Parameters

Once you have contacted your service provider and learned the type of ISDN switch being used,

refer to Table 1, Table 2, and Table 3. You must supply the appropriate provisioning information

to the service provider to ensure proper conﬁguration of the ISDN line.

NOTE

National ISDN 1 (NI-1) is a speciﬁcation released by Bellcore outlining a basic set of

ISDN services used for standardization by equipment vendors.

Table 1 National ISDN 1 (NI-1)

ISDN Switch Parameters Value

B1 Circuit Switched Data & Voice

B2 Circuit Switched Data & Voice

D Signaling Only

Multipoint Yes

Terminal Type A

Display Off

TEI Dynamic

MTERM 1

MAXB CHL 2

ACT USR Y

CSD 2

CSD CHL Any