when did the first touch tone phone come out
Push-button telephone 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.[1][2] 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 Touch-Tone mark. Over the next few decades touch-tone service replaced traditional pulse dialing technology and it eventually became a world-wide standard for telecommunication signaling.
Vehicle identification number VINs were first used in 1954.[1] From 1954 to 1981, there was no accepted standard for these numbers, so different manufacturers used different formats.
Greg Rikaart Gregory Andrew "Greg" Rikaart (born February 26, 1977)[1] is an American actor.
Samsung Galaxy Note 8 The Samsung Galaxy Note 8 (marketed as Samsung Galaxy Note8) is an Android phablet smartphone designed, developed and marketed by Samsung Electronics. Unveiled on 23 August 2017, it is the successor to the discontinued Samsung Galaxy Note 7. It was released on 15 September 2017.