3Com SuperStack II, NETBuilder SI manual Ordering Isdn Service for a Siemens Ewsd Switch

192APPENDIX E: PROVISIONING YOUR ISDN LINE

Siemens EWSD Switch

To order ISDN service for a Siemens EWSD switch, provide the phone company with the information in Table 36.

Table 37 Ordering ISDN Service for a Siemens EWSD Switch

Required Information	Specification
Line Type	National ISDN 1 line
Line Code	2B1Q (2B+D)
Interface Type	S/T interface with NT1 (model 43x) or
	U interface (model 44x) 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

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 numbers 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).