Nat Settings Section; Network Settings Section - Linksys RTP300 - Broadband Router With 2 Phone Ports Administration Manual

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NAT Settings section

Field Description
NAT Mapping Enable
To use externally mapped IP addresses and SIP/RTP ports in SIP messages,
select yes. Otherwise, select no.
The default is no.
NAT Keep Alive
To send the configured NAT keep alive message periodically, select yes.
Enable Otherwise, select no.
The default is 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.
The default is $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 proxy server or outbound
proxy server.
The default is $PROXY.
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Network Settings section

Field Description
SIP ToS/DiffServ Value
TOS/DiffServ field value in UDP IP packets carrying a SIP message.
The default is 0x68.
SIP CoS Value [0-7]
CoS value for SIP messages.
The default is 3.
RTP ToS/DiffServ
ToS/DiffServ field value in UDP IP packets carrying RTP data.
Value
The default is 0xb8.
RTP CoS Value [0-7] CoS value for RTP data.
The default is 6.
Network Jitter Level Determines how jitter buffer size is adjusted by the ATA device. Jitter buffer
size is adjusted dynamically. The minimum jitter buffer size is 30 milliseconds
or (10 milliseconds + current RTP frame size), whichever is larger, for all jitter
level settings. However, the starting jitter buffer size value is larger for higher
jitter levels. This setting controls the rate at which the jitter buffer size is
adjusted to reach the minimum. Select the appropriate setting: low,
medium, high, very high, or extremely high.
The default is high.
Jitter Buffer Adjustment Controls how the jitter buffer should be adjusted. Select the appropriate
setting: up and down, up only, down only, or disable.
The default is up and down.
Linksys ATA Administration Guide
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