| 词条 | Handset |
| 释义 |
A handset is a component of a telephone that a user holds to the ear and mouth to receive audio through the receiver and speak to the remote party via the built-in transmitter. In earlier telephones the transmitter was mounted directly on the telephone itself, which was attached to a wall at a convenient height or affixed to a desk stand. Until the advent of the cordless telephone, the handset was usually wired to the base unit, typically by a flexible tinsel wire. The handset of a cordless telephone contains a radio transceiver which relays communication via a base station that is wired to the telephone line. A mobile phone does not require a base station and communicates directly with a cell site in specially designated frequency bands. Handset symbol{{Commons category|Handset icons}}A graphic symbol that designates a handset is used on cordless and mobile phones to specify placing or ending a telephone call. Usually a button with green upright (off-hook) handset icon is used for starting a call, and a red lying-down (on-hook) handset is used for ending a call.[1] Unicode provides the {{unichar|1F4DE|TELEPHONE RECEIVER}} symbol. See also
References1. ^{{Cite book|url=https://books.google.com/books?id=vqWEdNSKUVoC|title=Mobile Usability: How Nokia Changed the Face of the Mobile Phone: How Nokia Changed the Face of the Mobile Phone|last=Lindholm|first=Christian|last2=Keinonen|first2=Turkka|last3=Kiljander|first3=Harri|date=2003-06-22|publisher=McGraw Hill Professional|isbn=9780071429108|language=en}}
1 : Telephony equipment |
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