Digital Enhanced Cordless Telecommunications ( Digital European Cordless Telecommunications ), usually known by the acronym DECT, is a digital communication standard, which is primarily used for creating cordless phone systems.

This forced development of a variation of DECT, called DECT 6. 0, using a slightly different frequency range ; the technology is nearly identical, but the frequency difference makes the technology incompatible with systems 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.

There are also other devices such as some baby monitors utilizing DECT, and in these devices there is no gateway functionality.

The " 6. 0 " in DECT 6. 0 does not specify a spectrum band, but is a marketing term coined by Rick Krupka, Product Director with Siemens, for DECT devices manufactured for use in the U. S. and Canada.

The term DECT 6. 0 is also used in Australia.

Since the onset of the migration from TDM PBXs to VoIP and VoIP hybrid solutions, manufacturers such as Lantiq, Ascom Wireless Solutions, Aastra Technologies, Philips, snom and Polycom have developed IP-DECT solutions where the backhaul from the base station is VoIP ( H. 323 or SIP ) while the handset loop is still DECT.

The latest DECT variant is DECT ULE, or DECT Ultra low energy.

Within the IMT-2000 group of technologies, DECT is referred to as IMT-2000 Frequency Time ( IMT-FT )

The original DECT frequency band ( 1880 MHz – 1900 MHz ) is used in all countries in Europe.

* Frequency: in Europe, in China, in Japan, in Latin America and in the US and Canada, and products may NOT be used in the UK or Ireland as they cause and suffer from interference with the UK and Ireland cellular networks with illegal use of such products being prohibited by UK agencies, and UK and Ireland DECT and products may NOT be used in the US and Canada as they cause and suffer from interference with US and Canada cellular networks and aircraft and for that reason is deemed illegal to use by US and Canadian agencies such as the Federal Communication Commission and Industry Canada.

The architecture presumes that such linkages will be designed into the interworking unit that connects the DECT access network to whatever mobility-enabled fixed network is involved.

DECT GAP is an interoperability profile for DECT.

The intent is that two different products from different manufacturers that both conform not only to the DECT standard, but also to the GAP profile defined within the DECT standard, are able to interoperate for basic calling.

If frequency-hopping is avoided, each base station can provide up to 120 channels in the DECT spectrum before frequency reuse.

DECT can also be used for purposes other than cordless phones.

Unlike standard DECT, the low power variant enables this standard to be used in battery powered devices such as smartphone app controllable home automation or security systems.

DECT has also been used for Fixed Wireless Access as a substitute for copper pairs in the " last mile " in countries such as India and South Africa.

In Europe the power limit laid down for use of the DECT spectrum ( 250 mW peak ) was expressed in ERP, rather than the more commonly used EIRP, permitting the use of high-gain directional antennas to produce much higher EIRP and hence long ranges.

TDMA is used in the digital 2G cellular systems such as Global System for Mobile Communications ( GSM ), IS-136, Personal Digital Cellular ( PDC ) and iDEN, and in the Digital Enhanced Cordless Telecommunications ( DECT ) standard for portable phones.

* DECT Standard Cipher, an encryption algorithm used by wireless telephone systems

* 1. 9 GHz ( 1880 – 1900 MHz ) ( used for DECT communications outside the U. S .)

The recently allocated 1. 9 GHz band is used by the popular DECT phone standard and is considered more secure than the other shared frequencies.

DECT is used by many businesses to deploy private license-free microcellular networks within large campuses where wireline phone service is less useful.

DECT is also used as a private, non-networked, cordless phone system where its low power profile ensures that nearby DECT systems do not interfere with each other.

CT2's successor, DECT, was provided with an interworking profile, GIP so that GSM networks could make use of it for microcellular access, but in practice the success of GSM within Europe, and the ability of GSM to support microcells without using alternative technologies, meant GIP was rarely used, and DECT's use in general was limited to non-GSM private networks, including use as cordless phone systems.

Most consumer-level DECT phones and base stations support the GAP profile, even those that do not publicize the feature, and thus can be used together.

It is primarily used on international trunks in the phone network and is the standard codec used in DECT wireless phone systems.

It is used by DECT, Bluetooth, Cypress WirelessUSB, Nordic Semiconductor, Texas Instruments LPRF, z-wave and Wavenis devices.

The standard has been created to enable home automation, security, healthcare and energy monitoring applications that are battery powered and can easily connect to the web using the large number of existing DECT enabled modems and be managed using a smartphone app.

The full form of DECT is Digital Enhanced Cordless Telecommunications, which is useful in designing small capacity WLL ( wireless in local loop ) systems.

Partap Lalvani's Binatone employs 350 people in 10 countries and the product range consists of small electronics like personal care products, cooking appliances and DECT telephones.

Operates clearly in common congested domestic radio traffic situations, for instance, generally immune to interference from other DECT systems, Wi-Fi networks, video senders, Bluetooth technology, baby monitors and other wireless devices.

The first DECT product to reach the market, Olivetti's Net < sup > 3 </ sup >, was a wireless LAN, and German firms Dosch & Amand and Hoeft & Wessel built niche businesses on the supply of data transmission systems based on DECT.

Exceptions to this include the DECT and PHS micro-cellular systems, UMTS-TDD UMTS variant, and China's TD-SCDMA, which use Time Division duplexing, where different time slots are allocated for the base station and handsets on the same frequency.

Certain mobile phone systems, notably PHS and DECT, only provide microcellular ( and picocellular ) coverage.

Digital audio wireless systems using DECT, are resistant to interference and have a range up to 300 m.

* SLC: Identical to the SL4, but with the addition of a Siemens MD34 DECT modem, allowing connection to certain Siemens ISDN telephone systems.

3G cellular also competes with both DECT and Wi-Fi for both voice and data.

The mobility management protocol includes many elements similar to the GSM protocol, but also includes elements unique to DECT.

The DECT media access control layer also provides encryption services with the DECT Standard Cipher ( DSC ).

DECT also provides Frequency-hopping spread spectrum over TDMA / TDD structure.

Besides digital audio and digital video transmission, DVB also defines data connections ( DVB-DATA-EN 301 192 ) with return channels ( DVB-RC ) for several media ( DECT, GSM, PSTN / ISDN, satellite etc.

Headsets are also available with 2. 5mm jack sockets for many DECT phones and other applications.

While the GSM EDGE standard (" 2. 9G "), DECT cordless phones and Mobile WiMAX standards formally also fulfill the IMT-2000 requirements and are approved as 3G standards by ITU, these are typically not branded 3G, and are based on completely different technologies.

DECT SMS handsets are also preprogrammed for Eircom's SMSC.

Conformance test cases of ETSI standards like ISDN, DECT, GSM, EDGE, 3G, DSRC have also been written in TTCN.

The Freebox server is a DSL modem, a router, a Wi-Fi hot spot, a NAS ( 250 GB hard drive ), a DECT base with up to 8 connected DECT phone sets, and a digital video recorder for TNT also known as DVB-T and IPTV.

The HPA also acknowledges that due to the mobile phone's adaptive power ability, a DECT cordless phone's radiation could actually exceed the radiation of a mobile phone.