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About: Improved Mobile Telephone Service     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.org associated with source document(s)

Type: yago:WikicatTelecommunicationsInCanadayago:WikicatTelecommunicationsInTheUnitedStatesyago:Artifact100021939yago:Instrumentality103575240yago:Medium106254669yago:Object100002684yago:PhysicalEntity100001930yago:Telecommunication106271778yago:Whole100003553 New Facet based on Instances of this Class

The Improved Mobile Telephone Service (IMTS) was a pre-cellular VHF/UHF radio system which linked to the public telephone network. IMTS was the radiotelephone equivalent of land dial phone service. Introduced in 1964, it replaced Mobile Telephone Service (MTS) and improved on most MTS systems by offering direct-dial rather than connections through a live operator, and full-duplex operation so both parties could talk at the same time.