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-5to 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.