Application of Touch-Tone calling in the Bell system
- 1 March 1963
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communication and Electronics
- Vol. 82 (1) , 1-5
- https://doi.org/10.1109/tce.1963.6373291
Abstract
A new system of initiating telephone calls employing voice-frequency tones, controlled by actuating buttons, and known as ¿Touch-Tone Calling¿ is now in service on a trial basis. The resultant marked improvement in speed and ease of use appears to appeal strongly to telephone users. This system is described and the engineering and psycho-physical steps necessary to its development are outlined. Field tests of system feasibility and results obtained are discussed. Three companion papers present technical features of the system components.Keywords
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