Linksys BUSINESS SPA922 - Manual (Page 172)

Linksys SPA9x2 Phone Administration Guide
Cisco Confidential--First Draft
165
Ext Tab
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.