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Pager. A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [2]
Al Gross (engineer) Irving " Al " Gross ( / ɡroʊs /; February 22, 1918 – December 21, 2000) was a pioneer in mobile wireless communication. He created and patented many communications devices, specifically in relation to an early version of the walkie-talkie, [1] Citizens' Band radio, [2] the telephone pager [2] and the cordless telephone. [3]
Telephone paging systems. Some private branch exchange (PBX) telephone systems use a paging facility that acts as a liaison between the telephone and a PA amplifier. In other systems, paging equipment is not built into the telephone system. Instead the system includes a separate paging controller connected to a trunk port of the telephone system.
Cooper left his first job at Teletype Corporation in Chicago in 1954 and joined Motorola, Inc. (Schaumburg, Illinois) as a senior development engineer in the mobile equipment group. He developed products including the first cellular-like portable handheld police radio system, produced for the Chicago police department in 1967.
Location of Panama between the Pacific Ocean (bottom) and the Caribbean Sea (top), with the canal at top center. The Panama Canal (Spanish: Canal de Panamá) is an artificial 82-kilometre (51-mile) waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean, cutting across the Isthmus of Panama, and is a conduit for maritime ...
An emergency communication system ( ECS) is any system (typically computer-based) that is organized for the primary purpose of supporting one-way and two-way communication of emergency information between both individuals and groups of individuals. These systems are commonly designed to convey information over multiple types of devices, from ...
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