The Mobile Telephone Service (MTS) is a pre-cellular VHF radio system that links to the Public Switched Telephone Network (PSTN). MTS was the radiotelephone equivalent of land dial phone service. {As of|2012}, only rural and wilderness areas were still using the system. The Mobile Telephone Service was one of the earliest mobile telephone standard...
Found on
http://en.wikipedia.org/wiki/Mobile_Telephone_Service
(from the article `telephone and telephone system`) In the United States, interconnection of mobile radio transmitters and receivers (transceivers) with the PSTN began in 1946, with the introduction of ...
Found on
http://www.britannica.com/eb/a-z/m/105
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