radio telephone system
91Toll-free telephone number — A toll free, Freecall, Freephone, or 800 number is a special telephone number, in that the called party is charged the cost of the calls by the telephone carrier, instead of the calling party. The cost of the call to the called party is usually… …
92General Packet Radio Service — (GPRS) is a packet oriented mobile data service on the 2G and 3G cellular communication system s global system for mobile communications (GSM). GPRS was originally standardized by European Telecommunications Standards Institute (ETSI) in response …
93Decca Navigator System — D …
94Joint Electronics Type Designation System — The Joint Electronics Type Designation System (JETDS), which was previously known as the Joint Army Navy Nomenclature System (AN System) and the Joint Communications Electronics Nomenclature System, is a method developed by the U.S. War… …
95Automotive navigation system — A taxi equipped with GPS navigation device An automotive navigation system is a satellite navigation system designed for use in automobiles. It typically uses a GPS navigation device to acquire position data to locate the user on a road in the… …
96National Warning System — The National Warning System (NAWAS) is an automated telephone system used to convey warnings to United States based federal, state and local governments.[1] The original mission of NAWAS was to warn of an imminent enemy attack or an actual… …
97Amateur radio mobile operation — refers to the use of amateur radio equipment from a moving vehicle. An amateur radio transceiver designed specifically for use in vehicles is usually mounted with the microphone and control panel in reach of the driver. In the United States, such …
98Postal, telegraph and telephone service — A postal, telegraph, and telephone service (or PTT) is a government agency responsible for postal mail, telegraph, and telephone services. Such monopolies existed in many countries, though not in North America or Japan. Many PTTs have been… …
99Federal telephone excise tax — The federal telephone excise tax is a statutory federal excise tax imposed under the Internal Revenue Code in the United States under usc|26|4251 on amounts paid for certain communications services. The tax was to be imposed on the person paying… …
100Nordic Mobile Telephone — The Mobira Cityman 150, Nokia s NMT 900 mobile phone from 1989 (left), compared to the Nokia 1100 from 2003.[1] NMT (Nordisk MobilTelefoni or Nordiska MobilTelefoni gruppen, Nordic Mobile Telephony in English) is the first fully automatic… …
