About: Push-button telephone     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : owl:Thing, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FPush-button_telephone

The push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to having a rotary dial as in earlier telephone instruments. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in Pennsylvania. But the technology proved unreliable and it was not until long after the invention of the transistor when push-button technology matured. On 18 November 1963, after approximately three years of customer testing, the Bell System in the United States officially introduced dual-tone multi-frequency (DTMF) technology under its registered trademark Touch-Tone. Over the next fe

AttributesValues
rdf:type
rdfs:label
  • Push-button telephone
  • 押しボタン式電話機
rdfs:comment
  • 押しボタン式電話機(おしボタンしきでんわき)は、電話番号送出操作を押しボタンで行う電話機のこと。回転ダイヤル式電話機(黒電話など)の対語として用いられる。プッシュ式電話機などとも呼ばれる。 この項目では、局給電のみで動作する、アナログ固定電話回線に直接接続される標準電話機を記載する。
  • The push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to having a rotary dial as in earlier telephone instruments. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in Pennsylvania. But the technology proved unreliable and it was not until long after the invention of the transistor when push-button technology matured. On 18 November 1963, after approximately three years of customer testing, the Bell System in the United States officially introduced dual-tone multi-frequency (DTMF) technology under its registered trademark Touch-Tone. Over the next fe
foaf:depiction
  • External Image
foaf:isPrimaryTopicOf
thumbnail
dct:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
description
  • How DTMF dialing sounds
filename
  • DTMF dialing.ogg
format
title
  • DTMF dialing
has abstract
  • 押しボタン式電話機(おしボタンしきでんわき)は、電話番号送出操作を押しボタンで行う電話機のこと。回転ダイヤル式電話機(黒電話など)の対語として用いられる。プッシュ式電話機などとも呼ばれる。 この項目では、局給電のみで動作する、アナログ固定電話回線に直接接続される標準電話機を記載する。
Faceted Search & Find service v1.17_git51 as of Sep 16 2020


Alternative Linked Data Documents: PivotViewer | iSPARQL | ODE     Content Formats:       RDF       ODATA       Microdata      About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3319 as of Dec 29 2020, on Linux (x86_64-centos_6-linux-glibc2.12), Single-Server Edition (61 GB total memory)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2021 OpenLink Software