Polycom 1725-11530-310 manual H2631998.ji, TterBufferMin

Administrator’s Guide Addendum for the Polycom VVX 1500 Business Media Phone

	Permitted
Attribute	Values	Interpretation
video.profile.H263.jitterBufferMin	33ms to	The smallest jitter buffer depth (in milliseconds)
	1000ms,	that must be achieved before play out begins
	default 150ms	for the first time. Once this depth has been
		achieved initially, the depth may fall below this
		point and play out will still continue. This
		parameter should be set to the smallest
		possible value which is at least two packet
		payloads, and larger than the expected short
		term average jitter.
video.profile.H263.jitterBufferShrink	33ms to	The absolute minimum duration time (in
	1000ms,	milliseconds) of RTP packet Rx with no packet
	default 70ms	loss between jitter buffer size shrinks. Use
		smaller values (33 ms) to minimize the delay
		on known good networks. Use larger values
		(1000ms) to minimize packet loss on networks
		with large jitter (3000 ms).
video.profile.H263.CifMpi	1 (default) to 32	This value is H263/90000 format parameter
		CIF used to signal Polycom VVX 1500
		receiving capability in SDP.
		This value also controls the TX frame size. If
		set to 1, CIF is used (provided the far end
		supports CIF=1); otherwise QCIF is used.
video.profile.H263.QcifMpi	1 (default) to 32	This value is H263/90000 format parameter
		QCIF used to signal Polycom VVX 1500
		receiving capability in the SDP.
video.profile.H263.SqcifMpi	1 (default) to 32	This value is H263/90000 format parameter
		SQCIF used to signal Polycom VVX 1500
		receiving capability in the SDP.
video.profile.H2631998.jitterBufferMax	(video.profil	The largest jitter buffer depth to be supported
	e.H2631998.ji	(in milliseconds). Jitter above this size will
	tterBufferMin	always cause lost packets. This parameter
	+ 500ms) to	should be set to the smallest possible value
	2500ms,	that will support the expected network jitter.
	default 2000ms
video.profile.H2631998.jitterBufferMin	33ms to	The smallest jitter buffer depth (in milliseconds)
	1000ms,	that must be achieved before play out begins
	default 150ms	for the first time. Once this depth has been
		achieved initially, the depth may fall below this
		point and play out will still continue. This
		parameter should be set to the smallest
		possible value which is at least two packet
		payloads, and larger than the expected short
		term average jitter.

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