ZyXEL Communications ISG50-ISDN User Manual page 500

Integrated service gateway

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Table of Contents

Chapter 30 Outbound Trunk Group

Figure 322 BRI Trunk - Add/Edit: Direct

Each field is described in the following table.

Table 173 BRI Trunk Add/Edit

General Settings

Directory Number

Type the name of this BRI interface. This field can be 1-30 alphanumeric characters (A-Z,

a-z, 0-9) and underscores (_). The first character must be a letter.

Type the description for this BRI interface. This field can be 0-63 alphanumeric characters

(A-Z, a-z, 0-9), underscores (_), hyphens (-) and spaces. 0 means this field can be left

Specify the service type for this BRI trunk.

Select DDI/DID (Direct Dialing In) when you want people to use a "direct number" to

dial an outgoing call. You can also specify a prefix number in the caller number that might

be required by your telephone company for outgoing calls using DDI/DID. See

(Direct Dial In) on page 479

Select AA (Auto-Attendant) to switch all calls coming through this interface to the Auto-

Attendant system first. See

Select Direct to forward all calls coming through this interface from trusted callers to

extensions. See

Calling Directly to an Extension on page 480

Select MSN (Multiple Subscribe Number) to switch all the calls to MSNs coming through

this interface to the Auto-Attendant system first. See

for more information.

Enter your ISDN number registered to your telephone company. This number is used for

the caller number when you make an outgoing call through the trunk from the extension

which cannot be found in the DDI mapping table. This field can be 3-20 digits in length.

for more information.

Section 31.1 on page 503

for more information.

Using Multiple ISDN Numbers on

for more information.

ISG50 User's Guide

Troubleshooting