3Com ISDN Modem manual Siemens Ewsd Switch, Table A-5 Line Configuration for Siemens Ewsd

A-8 APPENDIX A: ORDERING ISDN SERVICE

**Caller ID is necessary.to employ the Call Logging feature. If you would like to have Call Logging, you must order Caller ID. However, Caller ID itself, which requires an external device to monitor incoming calls, is not supported.

††Call Forwarding allows you to forward calls to another telephone number.

Siemens EWSD Switch

To order ISDN service for the Siemens® EWSD switch, supply photocopy and fax Table A-5 to the telephone company.

Table A-5 Line Configuration for Siemens EWSD

Required Information	Specification
Line Type	Standard (2B+D) National ISDN-1 line
Line Code	2B1Q
Interface Type	U interface
Directory Numbers	2*
Circuit-Switched Data and Voice	2*
Maximum B Channels	2*
Circuit-Switched Voice Limit	2*
Bearer Restriction Option	No packet mode data (NOPMD)
Protocol	Functional
SPID Suffix	1
Terminal Endpoint Identifier (TEI)	Dynamic
Key System (EKTS)	No
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. Otherwise, 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.

**Caller ID is necessary.to employ the Call Logging feature. If you would like to have Call Logging, you must order Caller ID. However, Caller ID itself, which requires an external device to monitor incoming calls, is not supported.

††Call Forwarding allows you to forward calls to another telephone number.