Filter
Top Products
138 ISDN Switch Types
ISDN Switch Types
The following table summarizes the different type of switch types
supported by the Prestige and some related information on the
switch types (number of phone numbers and SPID numbers). It
should be noted that the information in this table is for the common
case and is recommended for those cases. Exceptions still exist to
these figures. You can locate the provisioning information for the
appropriate North American switch type in the next sections.
Switch Type Geography No. of Phone #s No. of SPIDs
AT&T 5ESS NI-1 North American 2 2
AT&T 5ESS Point to Point North American 1 0
AT&T 5ESS Multipoint North American 2 2
Northern Telecom NI-1 North American 2 2
Northern Telecom Custom North American 2 2
DSS1 Europe, Asia 2 N/A
1TR6 Germany 2 N/A
Provisioning For U.S. Switches
For the U.S., the Prestige (both the U and S/T interface) has been
approved by Bellcore and has the IOC (ISDN Ordering Code) “S”
Capability, EZ-ISDN 1. Provide this information to your telephone
company when you order your ISDN line. If your telephone
company is not familiar with this IOC, then ask them what kind of
switch you will be connected to and use the information under
each switch type to order your ISDN line.
Provisioning For the AT&T 5ESS Switches
The AT&T 5ESS switch type supports three types of ISDN service.
These are: National ISDN-1 (NI-1), Multipoint, and Point-to-Point.