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Isdn switch types, Provisioning for u.s. switches, Provisioning for the at&t 5ess switches – ZyXEL Communications 2864I User Manual

Page 150

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ISDN Switch Types 137

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.