Avaya BCM 2.0 Programming Uživatelská příručka stáhnout pdf (Strana 385)

Appendix B: ISDN Overview 385

P0911588 Issue 01 Enterprise Edge 2.0 Programming Operations Guide

Program PRI lines

When the hardware configuration is complete, your PRI lines are ready to be

programmed. For information on programming your PRI lines, see Call by Call

service selection for PRI on page 166.

Program ISDN BRI lines (North America)

When the hardware configuration is complete, your BRI lines are ready to be

programmed in the same way as analog lines. You can, for example, place them in

pools and assign them to Enterprise Edge sets and ISDN terminal equipment.

However, there are some differences in the way BRI lines work that will influence

how you configure them to handle incoming and outgoing calls.

For BRI lines, in most cases, your service provider supplies two SPIDs – one for

each B channel. Each SPID and one or more Network DNs are associated with a

single line. Calls to a Network DN come in on a specific line, and pressing a line

button selects the same line every time.

If your service provider supplies you with a single SPID for both B channels,

incoming and outgoing calls are handled according to the loop. The two lines

provided by the BRI loop are “pooled” for both incoming and outgoing calls.

For example, if Loop 201is programmed with a single SPID, which supports lines

061 and 062, incoming calls made to a Network DN associated with the SPID

appear on either line 061 or line 062. If you press the line button for line 061, either

line 061 or line 062 is selected. For loops which usea single SPID, assign both lines

on a loop to a set to guarantee that all calls appear at the set.

Program Direct Inward System Access (DISA) on PRI lines (North America)

When an EE-DTM is configured for PRI, all lines on that module are set to Auto

Answer without Direct Inward System Access (DISA). DISA can however be

accessed by one of two methods.

Method 1:

Define the DISA DN to match the trailing digits of the Called Party Number

(CDN).

With Public, Private, and Tie service types, the CDN is simply truncated to

the Target Line Receive Digit Length and is parsed to match the Target Line

Receive Digits. DISA can be accessed by having the DISA DN match the

trailing digits of the CDN. For example, with a Receive Digit Length = 4, and

DISA DN = 1234, a call made to Public DN 763-1234 will be handled as

follows:

• the ISDN setup message will contain a CDN of 763-1234

• the CDN will be truncated to the 4 digits, 1234

• 1234 matches the DISA DN

• the call will be answered with DISA

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Avaya BCM 2.0 Programming Uživatelská příručka Strana 385