Cisco 8800 Series, Manual

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Procedure
Step 1 Select Voice > SIP .
Step 2
In the NAT Support Parameters section, set the parameters as described in the NAT Mapping with Static
IP Parameters, on page 388 table.
Step 3 Click the
Ext(n)
tab.
Step 4 In the NAT Settings section, set the parameters as described in the NAT Mapping from Ext Tab with Static
IP Parameters table.
Step 5
Click Submit All Changes .
What to do next
Configure the firewall settings on your router to allow SIP traffic.
NAT Mapping with Static IP Parameters
The following table defines the function and usage of NAT mapping with Static IP parameters in the NAT
Support Parameters section under the Voice>SIP tab in the phone web interface. It also defines the syntax of
the string that is added in the phone configuration file with XML(cfg.xml) code to configure a parameter.
Table 79: NAT Mapping with Static IP Parameters
Description Parameter
Enables the phone to process the received parameter in the VIA header.
Perform one of the following:
• In the phone configuration file with XML(cfg.xml), enter a string in this format:
<Handle_VIA_received ua="na">Yes</Handle_VIA_received>
• In the phone web page, set to Yes .
Default: No
Handle VIA
received
Enables the phone to process the rport parameter in the VIA header.
Perform one of the following:
• In the phone configuration file with XML(cfg.xml), enter a string in this format:
<Handle_VIA_rport ua="na">Yes</Handle_VIA_rport>
• In the phone web page, set to Yes .
Default: No
Handle VIA rport
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
388
Cisco IP Phone Installation
NAT Mapping with Static IP Parameters