Multi-Tech Systems MVP-2410/3010, MVP-410ST/810ST, MVP-130/130FXS manual 149

MultiVOIP User Guide Technical Configuration (T1/E1)

Voice/Fax Parameter Definitions (cont’d)

Field Name	Values	Description
Dynamic Jitter Buffer
Parameters
Dynamic		Dynamic Jitter defines a minimum
Jitter Buffer		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. An
		Optimization Factor adjustment
		controls how quickly the length of
		the Jitter Buffer is increased when
		jitter increases on the network. The
		length of the jitter buffer directly
		effects the voice delay between
		MultiVOIP gateways.
		The default minimum dynamic
		jitter buffer of 60 milliseconds is the
		minimum delay that would be
		acceptable over a low jitter network.
		The default maximum dynamic
		jitter buffer of 300 milliseconds is
		the maximum delay tolerable over a
		high jitter network.
Minimum	60 to 400	The default minimum dynamic
Jitter Value	ms	jitter buffer of 60 milliseconds is the
		minimum delay that would be
		acceptable over a low jitter network.
		Default = 60 msec

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