Assertion: advanced mobile phone system | /r/HasProperty | tacs
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Source sentences:
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.