Information om | Engelska ordet DTMF

Exempel på hur man kan använda DTMF i en mening

• Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers.
• 1 HF ALE EchoLink Gateway (9H1BBS-L) DTMF Access 145300 CTCSS 77 Hz (Owned by G0DEO/9H1IA)
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• An example is dual-tone multi-frequency signaling (DTMF), which is used on most telephone lines to customer premises.
• Music or tones such as DTMF or fax tones cannot be transported reliably with this codec, and thus some other method such as G.
• Interactive voice response (IVR) is a technology that allows telephone users to interact with a computer-operated telephone system through the use of voice and DTMF tones input with a keypad.
• Amateur radio equipment continues to be manufactured with 16-key DTMF keypads, keeping extra tones available for on-air use to control remote apparatus such as radio repeater stations.
• It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary dialing, that had been developed for electromechanical telephone switching systems.
• The DTMF automatic number identification (ANI) or caller ID from the callbox will be used to display the callbox sign number and its location on the computer-aided dispatch (CAD) system.
• Multifrequency signaling is a technological precursor of dual-tone multi-frequency signaling (DTMF, Touch-Tone), which uses the same fundamental principle, but was used primarily for signaling address information and control signals from a user's telephone to the wire-center's Class-5 switch.
• Users with a transceiver capable of producing touch tones (DTMF signals) can make a telephone call, typically limited by settings in the autopatch module to be only to flat-rate numbers, such as local calls or toll-free numbers.
• In contrast to in-band transmission of DTMF, VoIP signaling protocols also implement out-of-band method of DTMF transmission.
• In its quiescent state, Monolog consumes around 180 μA while the monitored telephone line is inactive, rising to a peak of about 6 mA during a call while the DTMF decoder is on during the first 20 to 30 seconds of a call.
• Base stations must be located sufficiently far apart so that interference is not experienced, and also selective calling techniques such as CTCSS and DTMF are used to ensure that as many mobiles as possible can use a given channel.
• Originally, lineman's handsets featured a rotary dial, but modern sets use some variant of the standard 12-button DTMF keypad and also employ an amplifier for speaker use.
• In later episodes, this was changed to an LED display, and the buttons were made to sound like the DTMF tones made by a touch-tone telephone as Marlo pressed them.
• Often with PABXs with analogue phone connections, the PABX will interpret the DTMF and then activate the out-of-band signaling.
• Several specialized applications such as TSPS, The Cats Meow and Phantom Access were used to mimic standard telephone sounds such as standard numeric DTMF dial tones as well as blue box tones, ringing (both American and International), dial tones, call waiting alerts, busy signals, 2600 Hz tones, and other effects such as payphone sounds.
• Conferencing servers may also need other specialized functions like "loudest talker" detection, or transcoding of audio streams, and also interpreting DTMF tones used to navigate menus.
• Digital systems also record detailed metadata about recorded calls, including start/stop timestamps, extension number or name, dialed DTMF tones, Caller ID, DNIS, and more.
• In the case of Quik Call I or a string of DTMF digits, the falsing would have to occur in the exact order required to actuate the decoder.

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