NEC 750370 manual Section Dialtone Detection

Integration Option Codes

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	In an integration, both the NEC Electra Elite telephone system and the voice
	mail system share information on the origin and destination of calls. The
	integration option codes are entered on Line 2 of Switch Setup Screen Page 1
	to help the NEC Electra Elite telephone system better integrate with the voice
	mail system. You can enter more than one option in this field. Each option
	code must be separated by a single space. (e.g., CR,,, DT)
SECTION 1
DIALTONE
DETECTION	￿DT
	Enables the voice mail system dial tone detection.
	The voice mail system listens for dialtone while playing prompts or
	recording messages. If the voice mail system detects a dialtone, it
	assumes the caller has hung up and ends the call.
	The voice mail system also checks for dialtone before dialing out, and if
	dialtone is absent, assumes its outgoing call has collided with an
	incoming call on the same port. The voice mail system then immediately
	changes into call answering mode and places the outgoing call back into
	the dial-out queue to be dialed again later.
	The following integration options control different aspects of the voice
	mail system dial tone detection sensitivity:
	•	DT8=0
		Entering DT8=0 in the Integration Options field disables dial tone
		detection on dial out calls. The voice mail system still listens for dial
		tone while recording messages, to verify that a caller has not hung
		up.
		To turn back on, enter DT8=1.
	•	DT9=0
		Entering DT9=0 on the Integration Options field disables dial tone
		detection on transferring calls to the operator. The voice mail system
		still listens for dial tone while recording messages, to verify that a
		caller has not hung up.

To turn back on, enter DT9=1.

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