Matrix SPARSH VP710, User Manual

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Matrix SPARSH VP710 User Guide 685
• Select the desired value from the CNG list.
• Click Confirm to save the change.
Jitter Buffer
Jitter buffer is a shared data area where voice packets can be collected, stored, and sent to the voice processor in
even intervals.
Jitter indicates the variations in the packet arrival time which occurs due to network congestion, timing drift or
changes in the route. The jitter buffer 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.
The IP phone supports two types of jitter buffers:
• Fixed
• Adaptive
Fixed : A fixed jitter buffer adds the fixed delay to voice packets. You can configure the delay time for the static jitter
buffer on the IP phone.
Adaptive: An adaptive 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 also be configured on the IP phone.
Procedure
Jitter buffer can be configured using the configuration files or locally.