Configuring Voice
Configuring Voice Settings
Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)
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Handle VIA rport
If you select yes, the SRP processes the rport
parameter in the VIA header (this value 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 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 SRP 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 SRP detects
symmetric NAT or a symmetric firewall, NAT mapping
is disabled.
The default is no.