Cisco SPA1001 Administration Guide - Page 101

Send Resp To Src Port

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Chapter 5 Linksys ATA Field Reference SIP Tab Handle VIA received Handle VIA rport Insert VIA received Insert VIA rport Substitute VIA Addr Send Resp To Src Port STUN Enable STUN Test Enable STUN Server EXT IP If you select yes, the Linksys IP phone processes the received parameter in the VIA header (this is inserted by the server in a response to anyone of its requests). If you select no, the parameter is ignored. Select yes or no from the drop-down menu. The default is no. If you select yes, the Linksys IP phone processes the rport parameter in the VIA header (this is inserted by the server in a response to anyone of its requests). If you select no, the parameter is ignored. Select yes or no from the drop-down menu. The default is no. Inserts the received parameter into the VIA header of SIP responses if the received-from IP and VIA sent-by IP values differ. Select yes or no from the drop-down menu. The default is no. Inserts the rport parameter into the VIA header of SIP responses if the received-from IP and VIA sent-by IP values differ. Select yes or no from the drop-down menu. The default is no. Lets you use NAT-mapped IP:port values in the VIA header. Select yes or no from the drop-down menu. The default is no. Sends responses to the request source port instead of the VIA sent-by port. Select yes or no from the drop-down menu. The default is no. Enables the use of STUN to discover NAT mapping. Select yes or no from the drop-down menu. The default is no. If the STUN Enable feature is enabled and a valid STUN server is available, the Linksys IP phone 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 Linksys IP phone detects symmetric NAT or a symmetric firewall, NAT mapping is disabled. The default is no. IP address or fully-qualified domain name of the STUN server to contact for NAT mapping discovery. External IP address to substitute for the actual IP address of the Linksys IP phone in all outgoing SIP messages. If 0.0.0.0 is specified, no IP address substitution is performed. If this parameter is specified, the Linksys IP phone 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. The default is 0.0.0.0. Document Version 3.2 Linksys IP Phone Administrator Guide 5-17

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5-17
Linksys IP Phone Administrator Guide
Document Version 3.2
Chapter 5
Linksys ATA Field Reference
SIP Tab
Handle VIA received
If you select yes, the Linksys IP phone processes the received parameter in the VIA header
(this is inserted by the server in a response to anyone of its requests). If you select no, the
parameter is ignored. Select yes
or
no from the drop-down menu.
The default is no.
Handle VIA rport
If you select yes, the Linksys IP phone processes the rport parameter in the VIA header
(this is inserted by the server in a response to anyone of its requests). If you select no, the
parameter is ignored. Select yes
or
no from the drop-down menu.
The default is no.
Insert VIA received
Inserts the received parameter into the VIA header of SIP responses if the received-from
IP and VIA sent-by IP values differ. Select yes
or
no from the drop-down menu.
The default is no.
Insert VIA rport
Inserts the rport parameter into the VIA header of SIP responses if the received-from IP
and VIA sent-by IP values differ. Select yes
or
no from the drop-down menu.
The default is no.
Substitute VIA Addr
Lets you use NAT-mapped IP:port values in the VIA header. Select yes
or
no from the
drop-down menu.
The default is no.
Send Resp To Src Port
Sends responses to the request source port instead of the VIA sent-by port. Select yes
or
no from the drop-down menu.
The default is no.
STUN Enable
Enables the use of STUN to discover NAT mapping. Select yes
or no from the drop-down
menu.
The default is no.
STUN Test Enable
If the STUN Enable feature is enabled and a valid STUN server is available, the Linksys
IP phone 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 Linksys IP phone detects symmetric NAT or
a symmetric firewall, NAT mapping is disabled.
The default is 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 Linksys IP phone in all
outgoing SIP messages. If 0.0.0.0 is specified, no IP address substitution is performed.
If this parameter is specified, the Linksys IP phone 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.
The default is 0.0.0.0.