Network Settings - Cisco SPA301 Administration Manual

Cisco SPA IP Phone Field Reference
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Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide

Network Settings

Parameter
SIP TOS/DiffServ Value
SIP CoS Value
RTP TOS/DiffServ Value
RTP CoS Value
Network Jitter Level
Jitter Buffer Adjustment
Description
TOS/DiffServ field value in UDP IP packets
carrying a SIP message.
Defaults to 0x68.
CoS value for SIP messages.
Defaults to 3.
ToS/DiffServ field value in UDP IP packets
carrying RTP data.
Defaults to 0xb8.
CoS value for RTP data.
Defaults to 6.
Determines how jitter buffer size is adjusted by
the Cisco SPA9000. 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.
Defaults to high.
Controls how the jitter buffer should be adjusted.
Select the appropriate setting: up and down, up
only, down only, or disable.
Defaults to up and down.
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