Assertion: advanced mobile phone system | /r/HasProperty | amp
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Source sentences:
text: Advanced Mobile Phone System (AMPS) was an analog mobile phone system standard originally developed by Bell Labs and later modified in a cooperative effort between Bell Labs and Motorola.
text: While Motorola was developing a cellular phone, from 1968 to 1983 Bell Labs worked out a system called Advanced Mobile Phone System (AMPS), which became the first cellular network standard in the United States.
text: The first analog cellular system widely deployed in North America was the Advanced Mobile Phone System (AMPS).
text: Others include Advanced Mobile Phone System (AMPS) used in North America and Australia, TACS (Total Access Communications System) in the United Kingdom, C-450 in West Germany, Portugal and South Africa, Radiocom 2000 in France, TMA in Spain, and RTMI in Italy.
text: History Predecessors to GSM, including Advanced Mobile Phone System (AMPS) in the United States and Total Access Communication System (TACS) in the United Kingdom, were built with analog technology.