Multi-Tech Systems MVP210/410/810 manual Did Parameters, Did Interface Parameter Definitions

Chapter 4: Configuring your VOIP

DID Parameters

The parameters applicable to the Direct Inward Dial (DID) telephony interface type are shown in the figure below and described in the table that follows. The DID interface allows one phone line to direct incoming calls to any one of several extensions without a switchboard operator. Of course, one DID line can handle only one call at a time. The parameters described here pertain to the customer-premises side of the DID connection (DID-DPO, dial-pulse originating); the network side of the DID connection (DID-DPT, dial-pulse terminating) is not supported.

The –SS and –FX models do not support DID.

		Figure 4-12: DID parameters
	DID Interface Parameter Definitions
Field Name	Values		Description
Interface	DID-DPO		Enables the customer-premises side of DID functionality
DID Options			MultiVOIP’s use of DID applies only for incoming DID calls. The Start
			Mode used by the MultiVOIP must match that used by the originating
			telephony equipment; else DID calls cannot be completed.
Start Modes	Immediate Start,		For Immediate Start, the VOIP detects the off-hook condition initiated
	Wink Start,		by the telco central-office call and becomes ready to receive dial digits
	Delay Dial		immediately.
			For Wink Start, the VOIP detects the off-hook condition. Then the
			VOIP reverses battery polarity for a specified time (140-290 ms; a
			“wink”) and then becomes ready to receive dial digits.
			For Delay Dial, the VOIP detects the off-hook condition. Then the
			VOIP reverses battery polarity for a specified time (reverse polarity
			duration has wider acceptable range than for Wink Start) and then
			becomes ready to receive dial digits.
Wink Timer	Integer values,		This is the length of the wink for Wink Start and Delay Dial signaling
(in ms)	in milliseconds		modes.
			Applicable only when Start Mode parameter is set to “Wink Start” or
			“Delay Dial.”
Dialing Options
Inter Digit Timer	Integer values,		This is the length of time that the MultiVOIP will wait between digits.
	in seconds		When the time expires, the MultiVOIP will look in the phonebook for
			the number entered.
			Default = 2.
Message Waiting	--		Not applicable to DID-DPO interface.
Indication
Inter-Digit	Integer values,		This parameter is applicable when digits are dialed onto a DID-DPO
Regeneration	in milliseconds		channel after the connection has been made. The length of time
Timer			between the outputting of DTMF digits.
			Default = 100 ms.

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