multifrequency tone signaling system
1Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …
2Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… …
3Number One Crossbar Switching System — The Number One Crossbar Switching System, or 1XB switch, was the primary urban local telephone exchange design used by the Bell System in the mid 20th century. Its switch fabric topology was based on the earlier urban panel switch system, which,… …
4telephone — telephoner, n. /tel euh fohn /, n., v., telephoned, telephoning. n. 1. an apparatus, system, or process for transmission of sound or speech to a distant point, esp. by an electric device. v.t. 2. to speak to or summon (a person) by telephone. 3.… …
5Аббревиатуры телефонии — Эта страница глоссарий. Аббревиатуры, используемые в телефонии и связи …
6John Draper — For other people named John Draper, see John Draper (disambiguation). John T. Draper Captain Crunch, Crunch and Crunchman or Mr. Crunchtastic Born 1943 (1943) …
7Disconnect supervision — is a term in telephony describing signaling between the telephone exchange and a connected party used to indicate that the connected call is being disconnected. For example the called party may indicate to the telephone exchange that the call is… …
8Answer supervision — is a term in telephony, describing a situation whereby the called party indicates to the central office that the call is being answered by the called party. by allowing loop current to flow in the line.OverviewCAS E M Signaling BasicsFor digital… …
