Nat settings, Network settings, Cisco confidential--first draft – Linksys BUSINESS SPA922 User Manual
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Linksys SPA9x2 Phone Administration Guide
Cisco Confidential--First Draft
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SPA9x2 Phone Field Reference
NAT Settings
Network Settings
Parameter
Description
NAT Mapping Enable
To use externally mapped IP addresses and SIP/RTP ports
in SIP messages, select yes. Otherwise, select no.
Defaults to no.
NAT Keep Alive Enable
To send the configured NAT keep alive message
periodically, select yes. Otherwise, select no.
Defaults to no.
NAT Keep Alive Msg
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.
Defaults to $NOTIFY.
NAT Keep Alive Dest
Destination that should receive NAT keep alive messages. If the
value is $PROXY, the messages are sent to the current or
outbound proxy.
Defaults to $PROXY.
Parameter
Description
SIP TOS/DiffServ Value
TOS/DiffServ field value in UDP IP packets carrying a SIP
message.
Defaults to 0x68.
SIP CoS Value
CoS value for SIP messages.
Defaults to 3.
RTP TOS/DiffServ Value
ToS/DiffServ field value in UDP IP packets carrying RTP
data.
Defaults to 0xb8.
RTP CoS Value
CoS value for RTP data.
Defaults to 6.