25 Facts About DECT

Digital enhanced cordless telecommunications, usually known by the acronym DECT, is a standard primarily used for creating cordless telephone systems.

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 Net wireless LAN.

DECT can be used for purposes other than cordless phones, such as baby monitors and industrial sensors.

DECT standard includes the generic access profile, a common interoperability profile for simple telephone capabilities, which most manufacturers implement.

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New Generation DECT standard, marketed as CAT-iq by the DECT Forum, provides a common set of advanced capabilities for handsets and base stations.

DECT-2020 New Radio, marketed as NR+, 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.

DECT standard was developed by ETSI in several phases, the first of which took place between 1988 and 1992 when the first round of standards were published.

DECT is recognized by the ITU as fulfilling the IMT-2000 requirements and thus qualifies as a 3G system.

DECT was developed by ETSI but has since been adopted by many countries all over the World.

The DECT Forum maintains the CAT-iq trademark and certification program; CAT-iq wideband voice profile 1.

DECT ULE uses a simple star network topology, so many devices in the home are connected to a single control unit.

The public access application did not succeed, since public cellular networks rapidly out-competed DECT by coupling their ubiquitous coverage with large increases in capacity and continuously falling costs.

DECT has been used for wireless local loop as a substitute for copper pairs in the "last mile" in countries such as India and South Africa.

In North America, DECT suffers from deficiencies in comparison to DECT elsewhere, since the UPCS band is not free from heavy interference.

DECT standard specifies a means for a portable phone or "Portable Part" to access a fixed telephone network via radio.

DECT operates as a multicarrier frequency-division multiple access and time-division multiple access system.

DECT uses time-division duplex, which means that down- and uplink use the same frequency but different time slots.

DECT allows interference-free wireless operation to around 100 metres outdoors.

DECT provides dynamic channel selection and assignment; the choice of transmission frequency and time slot is always made by the mobile terminal.

The DECT standard includes full testing suites for GAP, and GAP products on the market from different manufacturers are in practice interoperable for the basic functions.

Properties of the DECT protocol make it hard to intercept a frame, modify it and send it later again, as DECT frames are based on time-division multiplexing and need to be transmitted at a specific point in time.

DECT Forum launched the DECT Security certification program which mandates the use of previously optional security features in the GAP profile, such as early encryption and base authentication.

Whilst contemporary providers of Wi-Fi struggled with the same issues, providers of DECT retreated to the more immediately lucrative market for cordless telephones.

DECT uses UHF radio, similar to mobile phones, baby monitors, Wi-Fi, and other cordless telephone technologies.

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