Chapter 3 – Related MultiVOIP Setup Parameters

 

 

 

 

 

 

 

 

Services Screen Definitions (cont’d)

 

 

Field Name

Values

Description

 

 

V2 GW Prefixes

H.323 Version 2 enables the gateway to specify prefixes that the user should

 

 

 

 

dial before the WAN number in order to make a call using a certain medium.

 

 

 

 

E.g., the user could dial the prefix 3 for voice calls or 77 for H.320 video calls.

 

 

 

 

The prefixes are defined in the RRQ message at registration. Prefix can be any

 

 

 

 

H.323 alias, including an H.323 ID & mail address.

 

 

 

 

When a terminal places a LAN to WAN call, it should add one of the prefixes to

 

 

 

 

the dialed number. The Gatekeeper identifies the prefix & routes the call to the

 

 

 

 

appropriate gateway. If more than one gateway supplies the same prefix, line

 

 

 

 

hunting is possible between the gateways.

 

 

 

 

 

 

 

Prefix

 

Identifies the service. The prefix can be a numeric code, alphanumeric string,

 

 

 

 

name, or phone number that the user dials. Per H.323 Vers. 2, prefixes can also

 

 

 

 

be of URL and e-mail type. Also for H.323 Vers. 2, the type must precede the

 

 

 

 

prefix. For example, TEL: 3 or NAME: John.

 

 

Description

 

A description of the service that is accessible by dialing the prefix.

 

 

Default

 

Select to make the service accessible to all endpoints that are not predefined in

 

 

 

 

the zone.

 

 

Public

 

Select to make the service accessible to all endpoints that are not part of the

 

 

 

 

zone.

 

 

Dynamic

Y/N

Indicates whether the service is static (essentially permanent) or timed &

 

 

 

 

conditional (dynamic). This field indicates whether the service has been added

 

 

 

 

manually (non-dynamically; field value =N) or dynamically (field value = Y) as

 

 

 

 

part of registration from endpoints.

 

 

Buttons

These buttons allow you add, edit, or delete a selected service or prefix.

 

64

Multi-Tech Systems, Inc. Avaya Communication Manager Guide