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Rugged smartphone. A rugged smartphone is a specific type of toughened smartphone which is designed to be completely sealed within a durable housing to protect it against damage from water, shock, dust, and vibration.
Cell phones communicating with a single cell tower constitute a local subnetwork; the connection between the cell tower and the rest of the world begins with a backhaul link to the core of the internet service provider's network (via a point of presence). A backhaul may include wired, fiber optic and wireless components.
A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]
The series was called the Design Line telephones. The name did not refer to one particular telephone type; rather Design Line was the collective name given to all the specialty phones, including the Candlestick phone, Country Junction phone, Mickey Mouse phone and others. [1] The phones were among the few that could be purchased in the early 1970s.
Cat S22 Flip with Android operating system and touch display. Cat Phone was a range of toughened and strengthened mobile phones, including rugged smartphones developed, manufactured and sold by Bullitt Mobile Ltd, [3] part of the British telecommunications and consumer electronics technology company Bullitt Group Ltd, under exclusive license from Caterpillar Inc. since 2012. [1]
AST SpaceMobile made history in April 2023 by completing the first two-way phone call via space on an unmodified cell phone. This milestone was achieved using its low Earth orbit satellite, Blue ...
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