Cisco SPA962-NA Administration Guide - Page 137

NAT Settings, Network Settings

Page 137 highlights

Chapter 5 SPA900 Series Phone Field Reference NAT Settings Ext 1/2/3/4/5/6 Tab Field NAT Mapping Enable NAT Keep Alive Enable NAT Keep Alive Msg NAT Keep Alive Dest Description 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. 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. Network Settings Field SIP ToS/DiffServ Value SIP CoS Value [0-7] RTP ToS/DiffServ Value RTP CoS Value [0-7] Network Jitter Level Description TOS/DiffServ field value in UDP IP packets carrying a SIP message. The default is 0x68. CoS value for SIP messages. The default is 3. ToS/DiffServ field value in UDP IP packets carrying RTP data. The default is 0xb8. CoS value for RTP data. The default is 6. Determines how jitter buffer size is adjusted by the 900 Series phone. 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. Document Version 3.0 Linksys 900 Series IP Phone Administrator Guide 5-39

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5-39
Linksys 900 Series IP Phone Administrator Guide
Document Version 3.0
Chapter 5
SPA900 Series Phone Field Reference
Ext 1/2/3/4/5/6 Tab
NAT Settings
Network Settings
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 Enable
To send the configured NAT keep alive message periodically, select yes.
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 or outbound proxy.
The default is
$PROXY.
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 Value
ToS/DiffServ field value in UDP IP packets carrying RTP data.
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 900 Series phone. 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.