FXO & FXS Impedence Setting

You can select the FXO & FXS Impedence Setting for a different country. Please leave as default unless otherwise instructed.

Options

Description

 

 

FXO Port

Select Impedence for the FXO port. (only on V211)

 

 

FXS Port

Select Impedence for the FXS port.

 

 

STUN Setting

You can enable/disable the STUN feature and configure the STUN Server IP address in this page. This function can help your ATA to work properly behind a NAT device. To change these settings please follow your VoIP Service Provider’s information.

Options

Description

 

 

STUN

When enabled the NetComm ATA uses STUN (Simple Transversal of UDP through NAT)

 

if the unit is behind a NAT enabled router and the router has no ALG for SIP, or NONE

 

to disable STUN (VoIP Gateway is not to use STUN for NAT traversal). VoIP Gateway

 

also supports a proprietary implementation of NAT traversal where the Service provider

 

is expected to provide some relay support. If NONE is selected, then based on the

 

responses received, the VoIP Gateway will dynamically determine if the SIP Server

 

supports the proprietary implementation.

 

Note: Even when STUN is enabled, the VoIP Gateway does an automatic detection of the presence of SIP

 

ALG and disables the use of STUN. This is to avoid some media problems arising out of the behavior of

 

some ALGs when STUN is used at the user end.

 

 

STUN Server

Enter the IP address or host name of the STUN server.

 

 

STUN Port

Enter the port number on which the STUN server listens for requests from the ATA.

 

(default : 3478)

 

 

V110,V210P,V211,V220User Guide

YML881Rev1

46

www.netcomm.com.au

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NetComm V110 manual Supports the proprietary implementation, Default