Technical data

90362-01 ISDN Service Providers and Manufacturers J-1
ISDN Service Providers
and Manufacturers J
Ordering ISDN (Integrated Services Digital Network) service from your
local telephone company and long distance provider can sometimes be
complicated. This appendix is designed to help you order basic ISDN
service.
Selecting Your ISDN Service
The NetBlazer works with any of three types of ISDN (Integrated Services
Digital Network) service available from your local phone company:
• National ISDN 1 (called NI1B in the Setup Utility)
• AT&T 5ESS “Custom” (called 5ESSB)
• Northern Telecom DMS100 (called DMS100B)
SPIDs and DNs
If you get either National ISDN1 or DMS100, the telephone company
provides you with numbers called SPIDs (Service Profile IDentifiers) and
DNs (Directory Numbers). A SPID tells the phone company what types of
features and services you’ve agreed to pay for.
Note:
The term “Custom” is used to indicate that there are various hardware and
software revisions of the 5ESS switch; which version of the 5ESS you get
may vary depending on your local phone company. For example, your local
phone company may tell you that your switch type is
5E8, which is software
version 8 of the 5ESS switch. The NetBlazer calls all revisions
5ESS to sim-
plify the interface and documentation.