Editing DECT
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"'''DECT''' (Digital Enhanced Cordless Telecommunications) is a flexible digital radio access standard for cordless communications in residential, corporate and public environments" including all [[friendly retail]]. It is related to [[Bluetooth]] and [[UMTS]] and [[WAP]] and [[GPRS]] - all are current [[ITU]] [[standard]]s, part of "the [[IMT 2000]] family concept". Some excerpts from [http://www.gsm-technology.com/gsm.php/en,unlock,subpage_id,technologie_DECT.html] | "'''DECT''' (Digital Enhanced Cordless Telecommunications) is a flexible digital radio access standard for cordless communications in residential, corporate and public environments" including all [[friendly retail]]. It is related to [[Bluetooth]] and [[UMTS]] and [[WAP]] and [[GPRS]] - all are current [[ITU]] [[standard]]s, part of "the [[IMT 2000]] family concept". Some excerpts from [http://www.gsm-technology.com/gsm.php/en,unlock,subpage_id,technologie_DECT.html] | ||
"Through the utilization of the same basic technology for residential cordless phones (mass-market) up to complex multi-cell systems, DECT has an attractive and competitive cost position. DECT systems require no frequency planning during initial deployment or subsequent expansion. Once the radio infrastructure is in place, additional base stations and cordless terminals can easily and quickly be added." | "Through the utilization of the same basic technology for residential cordless phones (mass-market) up to complex multi-cell systems, DECT has an attractive and competitive cost position. DECT systems require no frequency planning during initial deployment or subsequent expansion. Once the radio infrastructure is in place, additional base stations and cordless terminals can easily and quickly be added." | ||
"high concentrations of users... up to 100,000 users in any km� office area... densely-occupied office buildings, public and residential areas." | "high concentrations of users... up to 100,000 users in any km� office area... densely-occupied office buildings, public and residential areas." | ||
"DECT very efficiently uses the available radio spectrum in the standard bands (1880-1900 MHz, 1900-1920 MHz, or 1910-1930 MHz). Various applications can share the spectrum, e.g. voice and data, or public and private applications." | "DECT very efficiently uses the available radio spectrum in the standard bands (1880-1900 MHz, 1900-1920 MHz, or 1910-1930 MHz). Various applications can share the spectrum, e.g. voice and data, or public and private applications." | ||
"The combination of TDMA/TDD digital radio technology and dynamic channel selection with additional encryption techniques, authentication and identification procedures, makes DECT radio transmissions extremely secure against unauthorized radio eavesdropping by third parties." | "The combination of TDMA/TDD digital radio technology and dynamic channel selection with additional encryption techniques, authentication and identification procedures, makes DECT radio transmissions extremely secure against unauthorized radio eavesdropping by third parties." | ||
"Speech quality in a DECT system is very high, thanks to the digital radio techniques applied. ADPCM digital voice coding technology also ensures compatibility with ISDN. In a multi-cell system such as a cordless PBX, handover from cell to cell is fully transparent to the user." | "Speech quality in a DECT system is very high, thanks to the digital radio techniques applied. ADPCM digital voice coding technology also ensures compatibility with ISDN. In a multi-cell system such as a cordless PBX, handover from cell to cell is fully transparent to the user." | ||
"A single-cell DECT cordless phone gives users much better speech quality, functionality and security than could be obtained with previous generations of cordless phones. It also provides free-of-charge in-house communications between affiliated cordless handsets." | "A single-cell DECT cordless phone gives users much better speech quality, functionality and security than could be obtained with previous generations of cordless phones. It also provides free-of-charge in-house communications between affiliated cordless handsets." | ||
"Data applications are becoming more and more important in all areas mentioned so far. Low data rate applications such as [[barcode reader]]s can as well be served as advanced application like [[Internet access]]. Today, DECT products provide data links with up to 552 kbit/s. New modulation schemes will rapidly allow the rate to grow up to 2 Mbit/s." Either is sufficient for high quality[[audio]] but not [[video]]. | "Data applications are becoming more and more important in all areas mentioned so far. Low data rate applications such as [[barcode reader]]s can as well be served as advanced application like [[Internet access]]. Today, DECT products provide data links with up to 552 kbit/s. New modulation schemes will rapidly allow the rate to grow up to 2 Mbit/s." Either is sufficient for high quality[[audio]] but not [[video]]. | ||
Eventually, as with the rest of [[healthy signal infrastructure]], probably the [[DECT]] [[standard]]s are required, and friendly retail should be encouraged to move this way: By reducing the number of devices to just one, this cuts [[e-waste]]. DECT can replace the existing phone infrastructure used in the friendly retail location, and provide huge advantages for multiple location organizations: | |||
:"equally suited for data and voice services in all environments, be it for a single line with one cordless phone, or for a large-scale system with several thousand users on various sites" | |||
" | :"In a multi-cell system such as a cordless PBX, [[handover]] from cell to cell is fully transparent to the user." And, it cuts the carrier out of the billing loop, as, for instance, each supermarket can carry traffic from the whole area surrounding it, without ever resorting to a carrier. If a manager of one store makes a call while at another store, everything is carried over the store net - not a public carrier. | ||
:"seamless mobile communications environment serving just a few up to several thousand users on one or more sites. The DECT digital radio technology permits very high densities of users to be served, in a secure and robust way and to profit by both voice and data services with a single infrastructure" | |||
:in [[Wireless Local Loop]] (WLL) it's "a rapidly available, low-cost, high-quality radio alternative to wired subscriber local loops, to bring public network voice and data services to subscribers. It enables quick network deployment, coverage to be built up as needed, and can be used as a replacement for the wireline, thereby reducing the initial capital investment for the operator." | |||
" | :"DECT and [[GSM]] networks, for example, can combine with the complementary strengths of both standards, to give users full mobility with integrated [[dual-mode handset]]s." | ||
=== References === | === References === | ||
*[http://www.gsm-technology.com/gsm.php/en,unlock,subpage_id,technologie_DECT.html www.gsm-technology.com entry with full description], from which above is excerpted | *[http://www.gsm-technology.com/gsm.php/en,unlock,subpage_id,technologie_DECT.html www.gsm-technology.com entry with full description], from which above is excerpted |