cordless telephones - definição. O que é cordless telephones. Significado, conceito
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O que (quem) é cordless telephones - definição

PORTABLE TELEPHONE THAT CONNECTS TO A LANDLINE
Portable phone; Wireless phone handset; Cordless phone; Air tel; Portable telephone; Cordless phones; Cordless telephones; Portable telephones
  • Two cordless telephones

Digital European Cordless Telecommunications         
  • DECT pulse duration measurement (100{{nbsp}}Hz, 10{{nbsp}}ms) on channel 8
ITU STANDARD
DECT; Digital European Cordless Telecommunications; Dect; IMT-FT; Wideband Digital Enhanced Cordless Telecommunications; WDECT; DECT 6.0; DECT Standard Cipher; Digital European cordless telephone; DECT telephone; Radio Fixed Part; Radio fixed part; XDECT; XDECT R; Digital Enhanced Cordless Telecommunications
Digital Enhanced Cordless Telecommunications         
  • DECT pulse duration measurement (100{{nbsp}}Hz, 10{{nbsp}}ms) on channel 8
ITU STANDARD
DECT; Digital European Cordless Telecommunications; Dect; IMT-FT; Wideband Digital Enhanced Cordless Telecommunications; WDECT; DECT 6.0; DECT Standard Cipher; Digital European cordless telephone; DECT telephone; Radio Fixed Part; Radio fixed part; XDECT; XDECT R; Digital Enhanced Cordless Telecommunications
<communications, standard> (DECT, formerly ".. European ..") A standard developed by the {European Telecommunication Standard Institute} from 1988, governing pan-European {digital mobile telephony}. DECT covers wireless PBXs, telepoint, residential cordless telephones, wireless access to the public switched telephone network, Closed User Groups (CUGs), Local Area Networks, and wireless local loop. DECT defines only the radio connection between two points and can be used for remote access to public and private networks. Other mobility standards, such as GSM, TACS, and {DCS 1800} add the necessary switching, signaling, and management functions that are not specified by DECT. The DECT Common Interface radio standard is a multicarrier time division multiple access, time division duplex (MC-TDMA-TDD) radio transmission technique using ten {radio frequency} channels from 1880 to 1930 MHz, each divided into 24 time slots of 10ms, and twelve full-duplex accesses per carrier, for a total of 120 possible combinations. A DECT base station (an RFP, Radio Fixed Part) can transmit all 12 possible accesses (time slots) simultaneously by using different frequencies or using only one frequency. All signaling information is transmitted from the RFP within a multiframe (16 frames). Voice signals are digitally encoded into a 32 kbit/s signal using {Adaptive Differential Pulse Code Modulation}. The handover process is requested autonomously by the portable terminal and the Radio Fixed Parts, according to the carrier signal levels. A "Generic Access Profile" defines a minimum set of requirements for the support of speech telephony. http://italtel.it/catalog/data/inglese/capc_5.htm. (1999-04-13)
DECT         
  • DECT pulse duration measurement (100{{nbsp}}Hz, 10{{nbsp}}ms) on channel 8
ITU STANDARD
DECT; Digital European Cordless Telecommunications; Dect; IMT-FT; Wideband Digital Enhanced Cordless Telecommunications; WDECT; DECT 6.0; DECT Standard Cipher; Digital European cordless telephone; DECT telephone; Radio Fixed Part; Radio fixed part; XDECT; XDECT R; Digital Enhanced Cordless Telecommunications

Wikipédia

Cordless telephone

A cordless telephone or portable telephone has a portable telephone handset that connects by radio to a base station connected to the public telephone network. The operational range is limited, usually to the same building or within some short distance from the base station.

A cordless telephone differs functionally from a mobile telephone in its limited range and by depending the base station on the subscriber premises. Current cordless telephone standards, such as PHS and DECT, have blurred the once clear-cut line between cordless and mobile telephones by implementing cell handoff (handover); various advanced features, such as data-transfer; and even, on a limited scale, international roaming. In specialized models, a commercial mobile network operator may maintain base stations and users subscribe to the service.

Unlike a corded telephone, a cordless telephone needs mains electricity (to power the base station). The cordless handset contains a rechargeable battery, which the base station re-charges when the handset rests in its cradle.

Exemplos do corpo de texto para cordless telephones
1. The findings may show that digital enhanced cordless telephones (DECT) put people at risk of brain tumours, say campaign groups.
2. A recent survey by the Dutch Electrohypersensitivity Foundation has found that digitally enhanced cordless telephones – Dects – are the main source of radiation in homes that have them.