SPA9x2 Phone Field Reference

SIP Tab

Parameter

Description

 

 

STUN Test Enable

If the STUN Enable feature is enabled and a valid STUN

 

server is available, the SPA9x2 can perform a NAT-type

 

discovery operation when it powers on. It contacts the

 

configured STUN server, and the result of the discovery is

 

reported in a Warning header in all subsequent

 

REGISTER requests. If the SPA9x2 detects symmetric NAT

 

or a symmetric firewall, NAT mapping is disabled.

 

Defaults to no.

 

 

STUN Server

IP address or fully-qualified domain name of the STUN

 

server to contact for NAT mapping discovery.

 

 

EXT IP

External IP address to substitute for the actual IP address

 

of the SPA9x2 in all outgoing SIP messages. If 0.0.0.0 is

 

specified, no IP address substitution is performed.

 

If this parameter is specified, the SPA9x2 assumes this IP

 

address when generating SIP messages and SDP (if NAT

 

Mapping is enabled for that line). However, the results of

 

STUN and VIA received parameter processing, if

 

available, supersede this statically configured value.

 

Defaults to blank.

 

 

EXT RTP Port Min

External port mapping number of the RTP Port Min.

 

number. If this value is not zero, the RTP port number in

 

all outgoing SIP messages is substituted for the

 

corresponding port value in the external RTP port range.

 

Defaults to blank.

 

 

NAT Keep Alive Intvl

Interval between NAT-mapping keep alive messages.

 

Defaults to 15.

 

 

Linksys Key System Parameters

Parameter

Linksys Key System

Description

Enable or disable the Linksys Key System on the IP phone.

Defaults to yes.

Linksys SPA9x2 Phone Administration Guide

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Linksys SPA922, SPA962, SPA942, SPA932 manual Linksys Key System Parameters