3Com ISDN Modem manual NorthernTelecomDMS 100 Switch, Table A-4 Line Configuration for DMS

ISDN Line Parameter Tables A-7

NorthernTelecomDMS 100 Switch

To order ISDN service for the Northern Telecom® DMS 100 switch, photocopy and fax Table A-4 to the telephone company.

Some telephone companies will only provision one analog voice port on a DMS 100 switch. Check with your telephone company for additional line provisioning information.

Table A-4 Line Configuration for DMS 100

Required Information	Specification
Line Type	Standard (2B+D) National ISDN-1 line
Line Code	2B1Q
Interface Type	U interface
Directory Numbers	2*
Circuit-Switched Voice	2*
Maximum B Channels	2*
Circuit-Switched Voice Limit	2*
Bearer Restriction Option	No packet mode data (NOPMD)
Protocol	Functional version 2 (PVC 2)
SPID Suffix	1
Terminal Endpoint Identifier (TEI)	Dynamic
Maximum Keys	64
Ring	No
Key System (EKTS)	No
Voice or Data	Both
Data Option	Lower layer compatibility
Flexible Call Offering (FCO)	Yes†
Additional Call Offering (ACO)	Yes‡
Caller ID	Yes**
Call Forwarding Variable	Yes††

*The Directory Number, Circuit-Switched Voice, Maximum B Channels, and Circuit-Switched Voice Limit parameters should be set to 2 to allow both analog ports to be used simultaneously. If those parameters are set to 1, the ISDN line can only place or receive one call at a time.

†Flexible Calling (FCO) provides 3-Way Calling (Call Conference), Hold, Drop, and Transfer from analog equipment attached to the modem.

‡Additional Call Offering (ACO) allows you to use incoming Dynamic Bandwidth Allocation (DBA) as well as Call Waiting.