dual-tone multifrequency

dual-tone multifrequency

[′dü·əl ‚tōn ‚məl·tē′frē·kwən·sē]
(communications)
Signaling method employing set combinations of two specific frequencies used by subscribers and telephone private branch exchange attendants, if their switchboard positions are so equipped, to indicate telephone address digits, precedence ranks, and end of signaling.
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References in periodicals archive ?
In nearly all cases, the applications are either nothing more than old-fashioned dual-tone multifrequency (DTMF) offerings with a layer of "Hey look at us, we have speech recognition
Microsoft Speech Server reduce s the complexity and cost of building, deploying and maintaining dual-tone multifrequency (DTMF) and speech-enabled applications for customer self-service and outbound notification.
Personalization must be realized at all user/customer interfaces--the Internet, brick-and-mortar, call centers, and various voice/telephony services using automatic speech recognition and text to speech (ASR/TTS) or dual-tone multifrequency (DTMF or touch-tone).
With ThruFax, companies will find an economical and reliable fax-routing method other than direct inward dial (DID) or dual-tone multifrequency (DTMF), more costly alternatives.
There also is an option that provides full drop-and-insert voice frequency testing with dual-tone multifrequency and multifrequency dialing.
Here, dual-tone multifrequency is faster and more accurate than speech, unless you cannot trigger the buttons on your telephone keypad.
Today, outbound IVR is used primarily for proactive communications, allowing enterprises to reach out to customers through outbound call campaigns that use a combination of prerecorded messages or text-to-speech and interactive dual-tone multifrequency (DTMF) and/or speech recognition applications.

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