When Dtmf Out of Band is, 144 | Multi-Tech Systems MVP-410ST/810ST

Technical Configuration (T1/E1)	MultiVOIP User Guide

Voice/Fax Parameter Definitions (cont’d)

Field Name	Values	Description
DTMF Parameters
Duration	60 – 3000	When DTMF: Out of Band is
(DTMF)	ms	selected, this setting determines
		how long each DTMF digit ‘sounds’
		or is held. Default = 100 ms.

DTMF	Out of	When DTMF Out of Band is selected
In/Out of	Band, or	(checked), the MultiVOIP detects DTMF
Band	Inband	tones at its input and regenerates them
		at its output. When DTMF Inband is
		selected, the DTMF digits are passed
		through the MultiVOIP unit as they are
		received.

FAX Parameters
Fax Enable	Y/N	Enables or disables fax capability
		for a particular channel.

Max Baud	2400, 4800,	Set to match baud rate of fax machine
Rate	7200, 9600,	connected to channel (see Fax machine’s
(Fax, bps)	12000, 14400	user manual). Default = 14400 bps.

Fax Volume	-18.5 dB	Controls output level of fax tones. To
Default =	to –3.5 dB	be changed only under the direction of
-9.5 dB		Multi-Tech’s Technical Support.

Jitter Value	Default =	Defines the inter-arrival packet
(Fax)	400 ms	deviation (in milliseconds) for the
		fax transmission. A higher value
		will increase the delay, allowing a
		higher percentage of packets to be
		reassembled. A lower value will
		decrease the delay allowing fewer
		packets to be reassembled.

Mode (Fax)	FRF 11;	FRF11 is frame-relay FAX standard
	T.38	using these coders: G.711, G.728,
	(T.38 not	G.729, and G.723.1.
	currently	T.38 is an ITU-T standard for
	sup-	storing and forwarding Faxes via
	ported)	email using X.25 packets. It uses
		T.30 fax standards and includes
		special provisions to preclude FAX
		timeouts during IP transmissions.