From Edison to analytics

August 2010
Urgent Communications;Aug2010, Vol. 28 Issue 8, p50
Trade Publication
The article focuses on the evolution of emergency-service call recorders. American inventor Thomas Edison made the first recording of a human voice on a tinfoil cylinder phonograph on December 6, 1877. Call recording in the public-safety answering point (PSAP) started to emerge in World War II. Advancement of recording capabilities started with the introduction of Voice-over-Internet Protocol (VoIP).


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