Nat Settings Section; Network Settings Section - Cisco SPA2102 Administration Manual

ATA Voice Field Reference
PSTN Line page (SPA3102)
Cisco Small Business ATA Administration Guide

NAT Settings section

NAT Mapping
Enable
NAT Keep Alive
Enable
NAT Keep Alive
Msg
NAT Keep Alive
Dest

Network Settings section

SIP ToS/DiffServ
Value
SIP CoS Value [0-7] CoS value for SIP messages.
To use externally mapped IP addresses and SIP/RTP ports
in SIP messages, select yes. Otherwise, select no.
The default is no.
To send the configured NAT keep alive message
periodically, select yes. Otherwise, select no.
The default is no.
Enter the keep alive message that should be sent
periodically to maintain the current NAT mapping. If the
value is $NOTIFY, a NOTIFY message is sent. If the value is
$REGISTER, a REGISTER message without contact is sent.
Escape sequence of %xx is also accepted. For example,
%0d%0a is unescaped into \r\n (CRLF).
The default is $NOTIFY.
Destination that should receive NAT keep alive messages.
If the value is $PROXY, the messages are sent to the
current or outbound proxy.
The default is $PROXY.
TOS/DiffServ field value in UDP IP packets carrying a SIP
message.
The default is 0x68.
The default is 3.
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