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MultiVOIP FXS User Guide Technical Configuration
65
Voice/Fax Parameter Definitions (cont’d) )
Field Name Values Description
Dynamic Jitter
Dynamic
Jitter Buffer
Dynamic Jitter defines a minimum and a maximum jitter
value for voice communications. When receiving voice
packets from a remote
MultiVOIP, varying delays between
packets may occur due to network traffic problems. This is
called Jitter. To compensate, the MultiVOIP uses a Dynamic
Jitter Buffer. The Jitter Buffer enables the MultiVOIP to wait
for delayed voice packets by automatically adjusting the
length of the Jitter Buffer between configurable minimum
and maximum values. The length of the jitter buffer directly
effects the voice delay between
MultiVOIP gateways.
Minimum
Jitter Value
20 to 400
ms
The minimum dynamic jitter buffer of 20 milliseconds is the
minimum delay that would be acceptable over a low jitter
network.
Default = 20 msec
Maximum
Jitter Value
20 to 200
ms
The maximum dynamic jitter buffer of 200 milliseconds is
the maximum delay tolerable over a high jitter network.
Default = 200 msec
Initial Jitter
Value
20 – 200
ms
default =
20 ms
The starting value (in ms) of the Jitter Buffer. This value
will change itself from the starting value depending on the
needs of the jitter buffer. For example, if you set the initial
value at 100, it may end up scaling itself down to 20 or up to
200 to meet the needs of operating conditions.