Dual Tone Multi Frequency


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Dual Tone Multi Frequency

(communications)
(DTMF, or "touch-tone") A method used by the telephone system to communicate the keys pressed when dialling. Pressing a key on the phone's keypad generates two simultaneous tones, one for the row and one for the column. These are decoded by the exchange to determine which key was pressed.
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Leveraging the NewVoiceMedia solution powered by PCI Pal, SixPackAbs utilizes DTMF (Dual Tone Multi Frequency) masking technology to provide customers with a secure way of handling payments by phone without bringing their environments in scope of PCI DSS.
Tenders are invited for Supply Of 4 Wire / 2 Wire Train Traffic Control Equipment Dual Tone Multi Frequency Dtmf Signalling As Per Rdso Specification No.
- Audio and video greetings, ring back tones, and announcements - Audio and video recording and playback - Audio and video conference mixing, up to HD 720p - Audio and video transcoding - Voice Quality Enhancements (VQE) - Dual Tone Multi Frequency (DTMF) - Multi-Language IVR (>45 languages) - Audio/video forking and tapping for lawful intercept - Active/standby MRF support

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