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SPIDs A-7
Siemens EWSD
Switch
To order ISDN service for a Siemens EWSD switch, provide the phone
company with the information in Table A-3.
SPIDs When you request services, you may also need the following information
about SPIDs and other service attributes:
■ Request multipoint, initializing terminal service; the maximum number
of terminals is two. The service provider supplies you with two SPIDs.
■ If you request ISDN service from an AT&T 5ESS service provider and
the switch is running custom (or non-national ISDN 1) software, the
format is:
01 + 7-digit telephone number + 1-digit suffix.
■ If you request a different telephone number for each B channel, the
suffix can be the same. A suffix of 0 is typical in this case. If you
decide to use the same telephone number for both B channels, use a
different suffix so that the two SPIDs are unique.
■ If you request NI-1 (national ISDN 1) service from an AT&T 5ESS
service provider, the format is:
01 + 7-digit telephone number + 1-digit suffix + 2-digit TID (terminal
identifier).
Table A-4 Ordering ISDN Service for a Siemens EWSD Switch
Required Information Specification
Line Type National ISDN 1 line
Line Code 2B+D
Interface Type S/T interface with NT1 and RJ-45 jack
Circuit-switched Option Yes
Bearer Restriction Option No packet mode data (NOPMD)
Protocol PPP
SPID suffix 1
Terminal Endpoint Identifier (TEI) Dynamic
Ring No
Maximum Keys 64
Key System (EKTS) No
Voice or Data Data
Lower Layer Compatibility Option for Data B channels
SS2TRHWBook Page 7 Monday, May 5, 1997 3:11 PM