Vanguard Managed Solutions 7300 Series Benutzerhandbuch

Operating Your Vanguard 7300 

4-19

The Block Alerting parameter is accessed using the H.323 Options. To configure 
your H.323 Virtual Port for Block Alerting, select H.323 Options from the Virtual 
Port Parameters, and then type BLOCK ALERTING. 

This table shows the range, default, and description of the H.323 Options:

The H.323 version 2 gateway now supports the registration of E.164 numbers with 
the gatekeeper for phones connected directly to the gateway. 

The E.164 address registration feature is applicable only with FXO/FXS interface 
types. E164 address registration can be configured on either a voice port or virtual 
voice port. 

Range

NONE, DISABLE_FAST_START, 
DISABLE_H245_TUNNELING, BLOCK_SETUP_ACK, 
BLOCK_PROGRESS, PREPEND_CALLING_TO_CALLED, 
BLOCK_ALERTING

Default

NONE

Description

The H.323 Options parameters allows you to specify H.323 
Version 2 features that allows for:

• DISABLE_FAST_START - The Vanguard H.323 Version 2 

implementation supports FAST START or FAST CONNECT 
and automatically opens audio channels. If the H.323 Options 
parameter is configured for DISABLE_FAST_START, FAST 
START is not used.

• DISABLE_H245_TUNNELING - The Vanguard H.323 

Version 2 implementation automatically enables tunnelling of 
H.245 messages over a H.225 TCP session. If H.323 Options 
parameter is configured for DISABLE_H245_TUNNELING, 
H.245 messages are not tunnelled over the H.225 TCP 
session. Instead a separate TCP session is used for H.245 
messages.

• BLOCK_SETUP_ACK - This prevents the Q.931 SETUP 

ACK message from being transmitted.

• BLOCK_PROGRESS - This prevents the Q.931 PROGRESS 

Message from being transmitted.

• PREPEND_CALLING_TO_CALLED - This function copies 

the calling number to beginning of the called number.

• BLOCK_ALERTING - This function prevents the Q.931 

ALERTING Message from being transmitted.