Cisco SPA301 User Manual

Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 326
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Network Settings
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.
Network Jitter Level 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.
Jitter Buffer Adjustment 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.

Cisco SPA301 Specifications

General

Brand	Cisco
Model	SPA301
Category	IP Phone
Language	English