Multi-Tech Systems MVPFX2-2 manual Dtmf Parameters, Band Inband

Technical Configuration				MultiVOIP FX User Guide
	Voice/Fax Parameter Definitions (cont’d)
	Field Name	Values	Description
	DTMF Parameters
	Duration	60 – 3000	When DTMF: Out of Band is selected,
	(DTMF)	ms	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	the MultiVOIP detects DTMF tones at
	Band	Inband	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.
	Out of Band	RFC 2833,	RFC2833 method. Uses an RTP
	Mode	SIP Info	mode defined in RFC 2833 to
			transmit the DTMF digits.
			SIP Info method. Generates dual
			tone multi frequency (DTMF) tones
			on the telephony call leg. The SIP
			INFO message is sent along the
			signaling path of the call.
			You must set this parameter per the
			capabilities of the remote endpoint
			with which the voip will
			communicate. The RFC2833
			method is the more common of the
			two methods.

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