Digital Enhanced Cordless Telecommunications - ορισμός. Τι είναι το Digital Enhanced Cordless Telecommunications
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Τι (ποιος) είναι Digital Enhanced Cordless Telecommunications - ορισμός

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
  • Motorola IT.6 cordless telephone
  • DECT pulse duration measurement (100{{nbsp}}Hz, 10{{nbsp}}ms) on channel 8

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)
Digital enhanced cordless telecommunications         
Digital enhanced cordless telecommunications (Digital European cordless telecommunications), usually known by the acronym DECT, is a standard primarily used for creating cordless telephone systems. It originated in Europe, where it is the common standard, replacing earlier cordless phone standards, such as 900 MHz CT1 and CT2.
Digital European Cordless Telecommunications         

Βικιπαίδεια

Digital enhanced cordless telecommunications

Digital enhanced cordless telecommunications (Digital European cordless telecommunications), usually known by the acronym DECT, is a standard primarily used for creating cordless telephone systems. It originated in Europe, where it is the common standard, replacing earlier cordless phone standards, such as 900 MHz CT1 and CT2.

Beyond Europe, it has been adopted by Australia and most countries in Asia and South America. North American adoption was delayed by United States radio-frequency regulations. This forced development of a variation of DECT called DECT 6.0, using a slightly different frequency range, which makes these units incompatible with systems intended for use in other areas, even from the same manufacturer. DECT has almost completely replaced other standards in most countries where it is used, with the exception of North America.

DECT was originally intended for fast roaming between networked base stations, and the first DECT product was Net3 wireless LAN. However, its most popular application is single-cell cordless phones connected to traditional analog telephone, primarily in home and small-office systems, though gateways with multi-cell DECT and/or DECT repeaters are also available in many private branch exchange (PBX) systems for medium and large businesses, produced by Panasonic, Mitel, Gigaset, Cisco, Grandstream, Snom, Spectralink, and RTX. DECT can also be used for purposes other than cordless phones, such as baby monitors and industrial sensors. The ULE Alliance's DECT ULE and its "HAN FUN" protocol are variants tailored for home security, automation, and the internet of things (IoT).

The DECT standard includes the generic access profile (GAP), a common interoperability profile for simple telephone capabilities, which most manufacturers implement. GAP-conformance enables DECT handsets and bases from different manufacturers to interoperate at the most basic level of functionality, that of making and receiving calls. Japan uses its own DECT variant, J-DECT, which is supported by the DECT forum.

The New Generation DECT (NG-DECT) standard, marketed as CAT-iq by the DECT Forum, provides a common set of advanced capabilities for handsets and base stations. CAT-iq allows interchangeability across IP-DECT base stations and handsets from different manufacturers, while maintaining backward compatibility with GAP equipment. It also requires mandatory support for wideband audio.

DECT-2020 New Radio, marketed as NR+ (New Radio plus), is a 5G data transmission protocol which meets ITU-R IMT-2020 requirements for ultra-reliable low-latency and massive machine-type communications, and can co-exist with earlier DECT devices.