Allied Telesis OmniConnect ISDN User Manual

Page 26

OmniConnect / ISDN

User’s Manual

Page 20

Part number 613-10787-00

3.6.1. Generic SPIDs for NI-1 and NI-2 service

A generic SPID format for National ISDN-1 (NI-1) and National ISDN-2 (NI-2) service is
used by some telephone companies. The format for these generic SPIDs, which are the same
for all switches, is as follows:

aaannnnnnnsstt

•

aaa

is the 3-digit area code and nnnnnnn is the 7-digit telephone number for

the ISDN BRI line.

•

is the Sharing Terminal Identifier (ID), which a two-digit number from 01 to

. These two digits are normally 01.

•

is a 2-digit code Terminal ID (TID), which is a two-digit number from 01 to

. These two digits are normally 01.

For example, if the telephone company assigns the telephone numbers 732-555-4549 and
732-555-5343

to the ISDN BRI line, and the IDs and TIDs for both SPIDs are all 01, the

SPIDs are 73255545490101 and 73255553430101.

3.6.2. AT&T 5ESS switch SPIDs

For National ISDN-1 (NI-1) service from an AT&T 5ESS switch, SPIDs are normally in this
format:

01nnnnnnn0tt

•

nnnnnnn

is a 7-digit telephone number (not including the area code) of the

ISDN BRI line.

•

is a 2-digit Terminal ID code (TID) from 00 to 62.

For example, if the telephone company assigns the telephone numbers 555-4549 and 555-
5343

to the ISDN BRI line, and 00 is the TID for both numbers, the SPIDs are

015554549000

and 015555343000.

For AT&T Custom Multipoint service, SPIDs are normally in this format:

01nnnnnnn0

•

nnnnnnn

is a 7-digit telephone number (not including the area code) of the

ISDN BRI line.

For example, if the telephone company assigns the telephone numbers 555-4549 and 555-
5343

to the ISDN BRI line, the SPIDs are 0155545490 and 0155553430.

There are no SPIDs for AT&T Custom Point-to-Point service.

3.6.3. Northern Telecom DMS-100 switch SPIDs

For National ISDN-1 (NI-1) service from a Northern Telecom DMS-100 switch, SPIDs are
normally in this format:

aaannnnnnnsstt

•

aaa

is the 3-digit area code and nnnnnnn is the 7-digit telephone number for

the ISDN BRI line.