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Advanced Mobile Phone System (AMPS) is the analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas in 1983[1][2] and Australia in 1987[3]. It was the primary analog mobile phone system in North America (and other locales) through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon have discontinued this service permanently. AMPS was discontinued in Australia in September 2000.[3]

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Posted by waqasahmad

There cannot be better link then the below

http://en.wikipedia.org/wiki/Advanced_Mobile_Phone_System

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Posted by hudson