2-6 Netopia ISDN Modem User’s Guide
SPID formats
The exact format of ISDN SPIDs is sometimes a point of confusion.
This is because several formats exist, and some formats allow
variations.
The table below displays the general SPID formats for some of the
types of ISDN switch configurations supported by the Netopia ISDN
Modem. The formats shown are a subset of possible SPID formats,
but in most cases they should work.
In the following table, xxxxxxx represents the directory number
assigned to your ISDN line, and yyy represents your area code.
Note: AT&T 5ESS custom point-to-point switches have no SPIDs
and are not represented in the table above. However, this type of
switch configuration is supported by the Netopia ISDN Modem.
Example SPIDs If your ISDN line is controlled by a DMS-100 using National ISDN-1,
and your directory numbers are given as (415)234-5678 and
(415)234-5679, your SPIDs are 4152345678100 and
4152345679200. Alternately, your SPIDs can be
41523456780100 and 41523456790200.
Switch SPID format
AT&T 5ESS cus-
tom (multipoint) 01xxxxxxx0
National ISDN-1
on AT&T 5ESS
(multipoint) 01xxxxxxx00
National ISDN-1
on Northern
Telecom DMS-100
yyyxxxxxxx100 and yyyxxxxxxx200
or
yyyxxxxxxx0100 and yyyxxxxxxx0200