电话按键

电话按键或电话键盘、电话按键键盘是指安装在按钮式电话机或类似的电信设备上用于拨打电话或拨号的键盘。电话键盘是一个由12个按钮组成的矩形阵列，键盘排列成四行三列^[1]。电话键盘的发展要归功于20世纪50年代贝尔实验室的研究^[2]^[3]。20世纪60年代美国贝尔系统开发了双音多频系统，使得电话上的拨号盘（旋转拨号）逐步被淘汰，通过按键拨打电话开始成为主流^[4]。

参考文献

^ D.P. Worrall, New Custom Calling Services, Bell System Technical Journal 61(5) 821–839 (May–June 1982)
^ B.L. Hanson, A Brief History of Applied Behavioral Science at Bell Laboratories, Bell System Technical Journal 62(6) 1571–1590 (July–August 1983), p.1578
^ Deininger, R. L. Human Factors Engineering Studies of the Design and Use of Pushbutton Telephone Sets. Bell System Technical Journal. 1960-02-16, 39 (4): 995–1012. doi:10.1002/j.1538-7305.1960.tb04447.x.
^ Agogino, Alice. Engineering Education "Today in History" Blog: Bell Telephone introduces push button telephone. Engineering Pathway. November 18, 2009. （原始内容存档于January 27, 2013）.

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[1] D.P. Worrall, New Custom Calling Services, Bell System Technical Journal 61(5) 821–839 (May–June 1982)

[2] B.L. Hanson, A Brief History of Applied Behavioral Science at Bell Laboratories, Bell System Technical Journal 62(6) 1571–1590 (July–August 1983), p.1578

[deininger-3] Deininger, R. L. Human Factors Engineering Studies of the Design and Use of Pushbutton Telephone Sets. Bell System Technical Journal. 1960-02-16, 39 (4): 995–1012. doi:10.1002/j.1538-7305.1960.tb04447.x.

[Engineering_Pathway-4] Agogino, Alice. Engineering Education "Today in History" Blog: Bell Telephone introduces push button telephone. Engineering Pathway. November 18, 2009. （原始内容存档于January 27, 2013）.

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