Administrator’s Guide for SIP-T46G IP Phone
190
Jitter buffer is a shared data area where voice packets can be collected, stored, and
sent to the voice processor in evenly spaced intervals. Jitter is variations in packet
arrival time, can occur because of network congestion, timing drift or route changes.
The jitter buffer, which is located at the receiving end of the voice connection,
intentionally delays the arriving packets so that the end user experiences a clear
connection with very little sound distortion. IP phones support two types of jitter buffers:
static and dynamic. A static jitter buffer adds the fixed delay to voice packets. You can
configure the delay time for the static jitter buffer on IP phones. A dynamic jitter buffer is
capable of adapting the changes in the network's delay. The range of the delay time for
the dynamic jitter buffer added to packets can be also configured on IP phones.
Procedure
Jitter buffer can be configured using the configuration files or locally.
Configure the mode of jitter
buffer and the delay time for
jitter buffer.
For more information, refer to
Jitter Buffer on page 338.
Configure the mode of jitter
buffer and the delay time for
jitter buffer.
Navigate to:
http://<phoneIPAddress>/servl
et?p=settings-voice&q=load
To configure Jitter Buffer via web user interface:
1. Click on Settings->Voice.
2. Mark the desired radio box in the Type field.
3. Enter the minimum delay time for adaptive jitter buffer in the Min Delay field.
4. Enter the maximum delay time for adaptive jitter buffer in the Max Delay field.
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