2.2 Programming

 

 

 

 

 

 

 

 

 

Parameter & Description

Default

Value Range

 

 

 

 

 

 

*

Gatekeeper Connection Checking Interval (min) 0-

0

0 (disable),

 

 

1440min

 

1 to 1440

 

 

Specifies the time (in minutes) between periodic checks of

 

 

 

 

connection to the gatekeeper.

 

 

 

 

When the primary gatekeeper fails, these checks can detect

 

 

 

 

the failure. In this case, the connection automatically

 

 

 

 

switches to the secondary gatekeeper if it is available, so that

 

 

 

 

the network remains functional.

 

 

 

 

 

 

 

 

*

Call Signaling Model

Direct

Direct,

 

 

Specifies whether to carry out a call control (H.225) process

 

Routed (via

 

 

 

Gatekeeper)

 

 

directly between the cards or through a gatekeeper.

 

 

 

 

 

 

 

Direct call control is typically preferred because it involves

 

 

 

 

less network load.

 

 

 

 

 

 

 

Others

 

 

 

 

 

 

 

Parameter & Description

Default

Value Range

 

 

 

 

 

# Fast Connect

Use

Use,

 

 

Specifies the use of the Fast Connect feature.

 

Don't use

 

 

 

 

 

 

Using Fast Connect simplifies the communication process so

 

 

 

 

that calls can be established quickly.

 

 

 

 

Generally, there is no need to change the default value.

 

 

 

 

 

 

 

Detailed Explanations

Gatekeeper

The following are the general functions of a gatekeeper:

•Dialed number-to-IP address translation

•Authentication

•Bandwidth control

It is possible to employ a VoIP network without the use of a gatekeeper, because the card is equipped with internal address translation capabilities. However, should the network contain dozens of cards, maintenance of address translation tables in individual cards can become a strain.

A gatekeeper is useful in this case, because with the gatekeeper it is possible to consolidate the maintenance. (However, you still need to program each card on the network with its own address translation information. For details, refer to "2.2.6 Address Translation Table—GW Entry" and "2.2.7 Address Translation Table—DN2IP Entry".) For more information about gatekeeper functions, consult the documentation of the gatekeeper.

When using a gatekeeper, make sure to choose a compatible model. For more information about gatekeeper compatibility with the card, consult a certified dealer.

Programming Guide

17