Multi-Tech Systems MVP103, 410 manual Advanced Features

Chapter 3 – Related MultiVOIP Setup Parameters

Voice/Fax Parameter Definitions Continued

Field Name	Values	Description
Coder	Parameters (cont’d)
Selected	G.711 a/u law 64 kbps;	Select from a range of coders with specific bandwidths.
Coder	G.726, @ 16/24/32/40	The higher the bps rate, the more bandwidth is used.
	kbps;	The channel that you are calling must have the same
	G.727, @ nine bps rates;	voice coder selected.
	G.723.1 @ 5.3 kbps,	Default = G.723.1 @ 6.3 kbps, as required for H.323.
	6.3 kbps;	Here 64K of digital voice are compressed to 6.3K,
	G.729, 8kbps;	allowing several simultaneous conversations over the
	Net Coder @ 6.4, 7.2, 8,	same bandwidth that would otherwise carry only one.
	8.8, 9.6 kbps	To make selections from the Selected Coder drop-down
	G.711/G.729	list, the Manual option must be enabled.
	G.729/G.711
Max	11 – 128 kbps	This drop-down list enables you to select the maximum
bandwidth		bandwidth allowed for this channel. The Max
(coder)		Bandwidth drop-down list is enabled only if the Coder
		is set to Automatic.
		If coder is to be selected automatically (“Auto” setting),
		then enter a value for maximum bandwidth.
Advanced Features
Silence	Y/N	Determines whether silence compression is enabled (checked)
Compression		for this voice channel.
		With Silence Compression enabled, the MultiVOIP will not
		transmit voice packets when silence is detected, thereby
		reducing the amount of network bandwidth that is being used
		by the voice channel.
		Default = off.
Echo	Y/N	Determines whether echo cancellation is enabled (checked) for
Cancellation		this voice channel.
		Echo Cancellation removes echo and improves sound quality.
		Default = on.
Forward	Y/N	Determines whether forward error correction is enabled
Error		(checked) for this voice channel.
Correction		Forward Error Correction enables some of the voice packets
		that were corrupted or lost to be recovered. FEC adds an
		additional 50% overhead to the total network bandwidth
		consumed by the voice channel.	Default = Off

Multi-Tech Systems, Inc. Avaya Communication Manager Guide 39