Editing DECT (section)

=== 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>