Sip Settings - Cisco SPA942 - - IP Phone Administration Manual

SPA and Wireless IP Phone Field Reference
Ext Tab
Cisco SPA and Wireless IP Phone Administration Guide
Parameter
Network Jitter Level
Jitter Buffer Adjustment

SIP Settings

Parameter
SIP Transport
SIP Port
SIP 100REL Enable
EXT SIP Port
Description
Determines how jitter buffer size is adjusted by the
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.
Description
Select from UDP, TCP, or TLS.
Defaults to UDP.
Port number of the SIP message listening and
transmission port.
Defaults to 5060.
To enable the support of 100REL SIP extension for
reliable transmission of provisional responses (18x)
and use of PRACK requests, select yes. Otherwise,
select no.
Defaults to no.
The external SIP port number.
B
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