Configure Nat Mapping With The Static Ip Address - Cisco 8800 Series Manual

Cisco IP Phone Installation
Parameter
NAT Keep Alive Msg
NAT Keep Alive Dest

Configure NAT Mapping with the Static IP Address

You can configure NAT mapping on the phone to ensure interoperability with the service provider.
Before you begin
• Access the phone administration web page. See
• You must have an external (public) IP address that is static.
• The NAT mechanism used in the router must be symmetric.
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
Configure NAT Mapping with the Static IP Address
Description
Enter the keep alive message that should be sent
periodically to maintain the current NAT mapping.
Perform one of the following:
• In the phone configuration file with
XML(cfg.xml), enter a string in this format:
<NAT_Keep_Alive_Msg_1_
ua="na">$NOTIFY</NAT_Keep_Alive_Msg_1_>
• In the phone web page, set the parameter to
$NOTIFY or to $REGISTER.
If the value is $NOTIFY, a NOTIFY message is sent.
If the value is $REGISTER, a REGISTER message
without contact is sent.
Allowed values: $NOTIFY and $REGISTER.
Default: $NOTIFY
Destination that should receive NAT keep alive
messages.
Perform one of the following:
• In the phone configuration file with
XML(cfg.xml), enter a string in this format:
<NAT_Keep_Alive_Dest_1_
ua="na">$PROXY</NAT_Keep_Alive_Dest_1_>
• In the phone web page, set the parameter to
$PROXY or specify a proxy server.
If the value is $PROXY, the messages are sent to the
current or outbound proxy.
Allowed values: $PROXY or a proxy server IP
address
Default: $PROXY
Access the Phone Web Interface, on page 104.
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