Multi-Tech Systems MultiVOIPTM, MVP-2410, MVP-3010, E1 manual Ring-On, Ring-Off

MultiVOIP User Guide				Technical Configuration
		T1 Parameter Definitions (cont’d)
	Field Name		Values	Description
	CAS Protocol		E&M Immed Strt	Channel Associated Signaling
			E&M Wink Start	(CAS) is a method of
			E&M Wink with	incorporating telephony
			dial tone	signaling info into a T1
			FXO Ground Strt	voice/data stream. In CAS, the
				signaling bits (the A, B, C, and
			FXO Loop Start
				D bits) are multiplexed into the
			FXS Ground Strt
				signal stream of each T1
			FXS Loop Start
				channel. (By contrast, in
				Common Channel Signaling
				(CCS), one channel handles
				signaling for all other channels.)
				Each CAS protocol defines the
				states of the signaling bits
				during the various stages of a
				call (IDLE, SEIZED, ANSWER,
				RING-ON, RING-OFF).
				The CAS protocol code allows
				the VOIP to interact properly
				with the PBX or central-office
				switch that it serves.
				If a user has an old MultiVOIP
				unit (with a firmware version
				lower than 4.08), and wants to
				upgrade to 4.08, the latest CAS
				file (4.08) should also be
				downloaded into that
				MultiVOIP unit. The new CAS
				file ensures proper operation
				between the MultiVOIP and a
				PBX.
				Match this parameter to the
				setting of PBX or central-office
				switch.
	FXS Options –		1 – 65535	Length of time before call
	No Response		(in seconds)	connection attempt is
	Timer			abandoned. Applicable only
				when FXS CAS protocol is
				selected.

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