Digital Enhanced Cordless Telecommunications
Channel: 宇宙のすべての知識 プリンシピア
Date: 2019-02-02

Digital Enhanced Cordless Telecommunications, by Wikipedia https://en.wikipedia.org/wiki?curid=8674 / CC BY SA 3.0

#Broadband
#Local_loop
#Mobile_telecommunications_standards
#Software-defined_radio
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 universal 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 universally 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 Net 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 Spectralink Kirk Telecom, Polycom, Panasonic, Mitel, Gigaset, Snom, BT Business, RTX Telecom. 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 f...