Editing DECT (section)

== Additional specifications ==

=== DECT 6.0 ===
DECT 6.0 is a North American marketing term for DECT devices manufactured for the United States and Canada operating at 1.9&nbsp;GHz. The "6.0" does not equate to a spectrum band; it was decided the term DECT 1.9 might have confused customers who equate larger numbers (such as the 2.4 and 5.8 in existing 2.4&nbsp;GHz and 5.8&nbsp;GHz cordless telephones) with later products. The term was coined by Rick Krupka, marketing director at Siemens and the DECT USA Working Group / Siemens ICM.

In North America, DECT suffers from deficiencies in comparison to DECT elsewhere, since the [[UPCS band]] (1920–1930&nbsp;MHz) is not free from heavy interference.<ref>{{Cite web |title=DECT Frequencies, Channels, Frequency Bands {{!}} Electronics Notes |url=https://www.electronics-notes.com/articles/connectivity/dect-cordless-telephones/channels-frequencies-bands.php |access-date=2020-05-26 |website=www.electronics-notes.com}}</ref> Bandwidth is half as wide as that used in Europe (1880–1900&nbsp;MHz), the 4&nbsp;mW average transmission power reduces range compared to the 10&nbsp;mW permitted in Europe, and the commonplace lack of GAP compatibility among US vendors binds customers to a single vendor.

Before 1.9&nbsp;GHz band was approved by the FCC in 2005, DECT could only operate in unlicensed [[2.4&nbsp;GHz]] and 900&nbsp;MHz Region 2 [[ISM band]]s; some users of [[Uniden]] WDECT 2.4&nbsp;GHz phones reported interoperability issues with [[Wi-Fi]] equipment.<ref>{{Cite web |title=WDECT Phone review |url=http://www.cnet.com.au/mobilephones/phones/0,239025953,240000290,00.htm |url-status=dead |archive-url=https://web.archive.org/web/20090227073209/http://www.cnet.com.au/mobilephones/phones/0,239025953,240000290,00.htm |archive-date=27 February 2009 |access-date=3 June 2018 |df=dmy-all}}</ref><ref>{{cite web |title=Example of WI-FI and WDECT problems |url=http://www.geekzone.co.nz/forums.asp?ForumId=9&TopicId=1994}}</ref>{{unreliable source?|date=June 2018}}

North-American {{nowrap|DECT 6.0}} products may not be used in Europe, Pakistan,<ref>{{Cite web |date=2015-12-10 |title=Lists of Illegal and Legal Cordless Phones |url=https://www.pta.gov.pk/en/media-center/single-media/lists-of-illegal-and-legal-cordless-phones |access-date=2019-12-27 |website=PTA}}</ref> Sri Lanka,<ref>{{cite web |last1=Daily Mirror |title=TRC Seizes Wireless Phones |url=http://www.dailymirror.lk/129915/TRC-seizes-wireless-phones-causing-interruptions-to-mobile-G-network |access-date=8 July 2017 |website=Daily Mirror}}</ref> and Africa, as they cause and suffer from interference with the local cellular networks. Use of such products is prohibited by European Telecommunications Authorities, [[Pakistan Telecommunication Authority|PTA]], Telecommunications Regulatory Commission of Sri Lanka<ref>{{cite web |last1=TRCSL |title=The Use of DECT 6.0 Phones is illegal in Sri Lanka |url=http://www.trc.gov.lk/the-use-of-dect-6-0-cordless-phone-is-illegal-in-sri-lankla.html |url-status=dead |archive-url=https://web.archive.org/web/20200720044808/http://trc.gov.lk/the-use-of-dect-6-0-cordless-phone-is-illegal-in-sri-lankla.html |archive-date=20 July 2020 |access-date=8 July 2017 |website=TRCSL}}</ref> and the Independent Communication Authority of South Africa. European DECT products may not be used in the United States and Canada, as they likewise cause and suffer from interference with American and Canadian cellular networks, and use is prohibited by the [[Federal Communications Commission]] and [[Innovation, Science and Economic Development Canada]].

DECT 8.0 HD is a marketing designation for North American DECT devices certified with [[#CAT-iq|CAT-iq 2.0]] "Multi Line" profile.<ref>{{cite web |date=October 2017 |title=DECT Today, Issue 8 |url=http://newsletter.insight5.nl/t/ViewEmail/y/0ED5D82E76CCBAC7 |access-date=2 January 2018 |website=Newsletter.insight5.nl |page=16}}</ref>

=== NG-DECT/CAT-iq ===
{{anchor|VoIP/IP-DECT|NG-DECT|CAT-iq}}
{{main|CAT-iq|IP-DECT}}

Cordless Advanced Technology—internet and quality (CAT-iq) is a certification program maintained by the DECT Forum. It is based on New Generation DECT (NG-DECT) series of standards from ETSI.

NG-DECT/CAT-iq contains features that expand the generic GAP profile with mandatory support for high quality wideband voice, enhanced security, calling party identification, multiple lines, parallel calls, and similar functions to facilitate [[VoIP]] calls through [[Session Initiation Protocol|SIP]] and [[H.323]] protocols.

There are several CAT-iq profiles which define supported voice features:
* CAT-iq 1.0{{Snd}} "HD Voice" (ETSI TS 102 527-1): wideband audio, calling party line and name identification (CLIP/CNAP)
* CAT-iq 2.0{{Snd}} "Multi Line" (ETSI TS 102 527-3): multiple lines, line name, call waiting, call transfer, phonebook, call list, DTMF tones, headset, settings
* CAT-iq 2.1{{Snd}} "Green" (ETSI TS 102 527-5): 3-party conference, call intrusion, caller blocking (CLIR), answering machine control, SMS, power-management
* CAT-iq Data{{Snd}} light data services, software upgrade over the air (SUOTA) (ETSI TS 102 527-4)
* CAT-iq IOT{{Snd}} Smart Home connectivity (IOT) with [[DECT Ultra Low Energy]] (ETSI TS 102 939)

CAT-iq allows any DECT handset to communicate with a DECT base from a different vendor, providing full interoperability. CAT-iq 2.0/2.1 feature set is designed to support [[IP-DECT]] base stations found in office [[IP-PBX]] and [[home gateway]]s.

=== DECT-2020 ===
{{main|DECT-2020}}

DECT-2020, also called NR+, is a new radio standard by [[ETSI]] for the DECT bands worldwide.<ref name="5Gworld">{{cite web |author=Martin Rowe |date=2023-08-16 |title="The first non-cellular 5G standard: DECT NR+" |url=https://www.5gtechnologyworld.com/the-first-non-cellular-5g-standard-dect-nr/ |access-date=2023-11-21 |publisher=5G Technology World (WTWH Media LLC)}}</ref><ref name="hidden wires">{{cite web |date=2022-10-05 |title="DECT-2020: The first global non-cellular 5G technology approved" |url=https://www.hiddenwires.co.uk/news/Article/dect2020-the-first-global-noncellular-5g-technology-approved |access-date=2023-11-08 |publisher=Hiddenwires (IML Group plc)}}</ref> The standard was designed to meet a subset of the [[ITU]] IMT-2020 [[5G]] requirements that are applicable to [[Internet of things|IOT]] and [[Industrial internet of things]].<ref name="neweqdigest">{{cite web |author=Dan Shey |date=2023-02-06 |title="DECT-2020 New Radio (NR) and IoT: An Overview" |url=https://www.newequipment.com/research-and-development/whitepaper/21259557/dect2020-new-radio-nr-and-iot-an-overview |access-date=2023-11-03 |publisher=New Equipment Digest (Endeavor Business Media)}}</ref> DECT-2020 is compliant with the requirements for Ultra Reliable Low Latency Communications [[URLLC]] and massive Machine Type Communication (mMTC) of IMT-2020.

DECT-2020 NR has new capabilities <ref name="electornicsweekly">{{cite web |author=Mark Patrick, Caroline Hayes |date=2023-05-24 |title="A guide to DECT NR+ – why the world needs a non-cellular 5G wireless protocol" |url=https://www.electronicsweekly.com/news/products/rf-microwave-optoelectronics/a-guide-to-dect-nr-why-the-world-needs-a-non-cellular-5g-wireless-protocol-2023-05/ |access-date=2023-11-21 |publisher=Electronics Weekly}}</ref> compared to DECT and DECT Evolution:

* Better [[multipath]] operation ([[OFDM]] [[Cyclic Prefix]])
* Better radio sensitivity (OFDM and Turbocodes)
* Better resistance to radio interference (co-channel interference rejection)
* Better bandwidth utilization
* Mesh deployment

The DECT-2020 standard has been designed to co-exist in the DECT radio band with existing DECT deployments. It uses the same Time Division slot timing and Frequency Division center frequencies and uses pre-transmit scanning to minimize co-channel interference.