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The Western Electric hand telephone sets comprise a series of telephones that were produced from 1927 by the Western Electric Company for the American Telephone and Telegraph Company (AT&T) and the Bell System. The series features the mouthpiece ( transmitter) and the earpiece ( receiver) combined into a hand-held unit, originally named a hand ...
Telephone switchboard. A telephone switchboard was a device used to connect circuits of telephones to establish telephone calls between users or other switchboards, throughout the 20th century. The switchboard was an essential component of a manual telephone exchange, and was operated by switchboard operators who used electrical cords or ...
Ringdown. In telephony, ringdown is a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp or cause the operation of a self-locking relay known as a drop . Ringdown is used in manual operation, and is distinguished from automatic signaling by dialing a number.
Phreaking is a slang term coined to describe the activity of a culture of people who study, experiment with, or explore telecommunication systems, such as equipment and systems connected to public telephone networks. [1] The term phreak is a sensational spelling of the word freak with the ph- from phone, and may also refer to the use of various ...
Manual of the Planes. Marks' Standard Handbook for Mechanical Engineers. Masters of the Wild. Mathematical Handbook for Scientists and Engineers. MCC Coaching manual. McCoy's British Massage Parlour Guide. Moe book. Monster Manual. The Musician's Handbook.
A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large enterprise telecommunications systems. It facilitates the interconnection of telephone subscriber lines or digital system virtual circuits, enabling telephone calls between subscribers.
The Mobile Telephone Service ( MTS) was a pre- cellular VHF radio system that linked to the Public Switched Telephone Network (PSTN). MTS was the radiotelephone equivalent of land dial phone service. The Mobile Telephone Service was one of the earliest mobile telephone standards. It was operator assisted in both directions, meaning that if one ...
This is a list of 3D-enabled mobile phones. The devices on this list typically use autostereoscopic displays. Some devices may use other kinds of display technology, like holographic displays or multiscopic displays. Some devices employ eye tracking in aiming the 3D effect to the viewer's eye. Opic Technologies, Inc. offers a 3D smartphone with ...
Pages in category "Automotive handbooks and manuals" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. C.
S. Handbooks and manuals about screenwriting (3 P) Sex manuals (2 C, 31 P) Style guides (5 C, 14 P) Survival manuals (6 P)