Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone...

System in the United States officially introduced dual-tone multi-frequency (DTMF) technology in Carnegie, Pennsylvania and increased its use in Greensburg...

radio operators (hams) within radio range of a local node are able to use DTMF tone generators to initiate a node-to-node connection with any other available...

number. 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 –...

interact with a computer-operated telephone system through the use of voice and DTMF tones input with a keypad. In telephony, IVR allows customers to interact...

across the telephone line in form of dual-tone multi-frequency signaling (DTMF). The tones control the telephone system by instructing the telephone switch...

callers' voice) is using. An example is dual-tone multi-frequency signaling (DTMF), which is used on most telephone lines to customer premises. Out-of-band...

Tainy MAG Hamed Florencio Morales Ramos 3:49 15. "Eoo"   Tainy 3:24 16. "DTMF"   MAG 3:57 17. "La Mudanza"   Tainy La Paciencia Big Jay Hamed 3:33 Total...

systems are Dual Tone Multiple Frequency (DTMF), and Continuous Tone Coded Squelch System (CTCSS). A DTMF selective signaling PMRS system uses a code...

A silver box is a modified DTMF keypad that adds four additional keys. This gives four columns of four keys each (16 total) instead of three columns (in...

dual-tone, a short ring "pulse", or a line reversal followed by a dual-tone). A DTMF signalling using the 16 standard dialing tones. EN 300 659-2 expands the...

Selective calling systems can overlap; e.g. a radio may have CTCSS and DTMF calling. Selective calling prevents the user from hearing others on a shared...

to the public at the 1962 World's Fair under the trade name Touch-Tone (DTMF). Touch-tone technology primarily used a keypad in the form of a rectangular...

signaling is a technological precursor of dual-tone multi-frequency signaling (DTMF, Touch-Tone), which uses the same fundamental principle, but was used primarily...

depends on their phone system – generally it is either in-band-signaling DTMF sequence such as the *57 Vertical service code or a special button attached...

assigned, thus generating a total of sixteen dual-tone multi-frequency (DTMF) signals. Early keypads only used the keys with the digits 1 through 9 and...

accepted DTMF "touch tones" or other tone signaling systems. A transitional technology (from pulse to DTMF) had converters to convert DTMF to pulse,...

the asterisk (*) symbol for a signal used in dual-tone multi-frequency (DTMF) dialing. Asterisk was created in 1999 by Mark Spencer of Digium, which,...

is accessed while Sentralok requires a dispatcher to release the key with DTMF tones. Both Sentralok and KeySecure are also branded products of the Knox...

transmissions should begin with the LITZ (Long Interval Tone Zero or Long Time Zero) DTMF signal for at least 5 seconds. CQ like calls (to see who is out there) should...

calls manually, as well as machine to machine dialing, and predates the DTMF Touch-Tone system used by subscribers. The leading 1 for customer dialed...

applications, such as recognition of dual-tone multi-frequency signaling (DTMF) tones produced by the push buttons of the keypad of a traditional analog...

multi-frequency signaling (DTMF), fax transmissions, and high-quality audio cannot be transported reliably with this codec. DTMF requires the use of the...

telephones, if wired to a modern DTMF capable exchange, can also be exploited by a tone dialer that generates the DTMF tones used by modern keypad units...

TelstraClear/Vodafone) 1958 - sends back the number the user is calling from in DTMF tones. (not TelstraClear/Vodafone) 511 - reads back the number the user is...

browser obtains information using speech recognition and keypad entry, such as DTMF detection. As speech recognition and web technologies have matured, voice...

receiving this go ahead signal, the originating end uses multi-frequency, DTMF, or dial pulse signalling to send the phone number. On 1A2 key systems or...

& Single Data Message Format (SDMF), plus the Dual-tone multi-frequency (DTMF) system and a no-ring mode for meter-reading and the like. It's more of a...

requires implementations to provide PCMA/PCMU (RFC 3551), Telephone Event as DTMF (RFC 4733), and Opus (RFC 6716) audio codecs as minimum capabilities. The...

rotary dial, but modern sets use some variant of the standard 12-button DTMF keypad and also employ an amplifier for speaker use. Most handsets are designed...