Editing DECT (section)

===Technical properties===
[[File:Pulse duration measurement of a DECT phone.jpg|thumb|250px|DECT pulse duration measurement (100{{nbsp}}Hz, 10{{nbsp}}ms) on channel 8]]
ETSI standards documentation ETSI EN 300 175 parts 1–8 (DECT), ETSI EN 300 444 (GAP) and ETSI TS 102 527 parts 1–5 (NG-DECT) prescribe the following technical properties:
* Audio codec:
** mandatory:
*** 32{{nbsp}}kbit/s [[G.726]] ADPCM (narrow band),
*** 64{{nbsp}}kbit/s [[G.722]] sub-band ADPCM (wideband)
** optional:
*** 64{{nbsp}}kbit/s [[G.711]] μ-law/A-law PCM (narrow band),
*** 32{{nbsp}}kbit/s [[G.729.1]] (wideband),
*** 32{{nbsp}}kbit/s [[MPEG-4 Part 3|MPEG-4 ER AAC-LD]] (wideband),
*** 64{{nbsp}}kbit/s MPEG-4 ER AAC-LD (super-wideband)
* Frequency: the DECT physical layer specifies RF carriers for the frequency ranges 1880&nbsp;MHz to 1980&nbsp;MHz and 2010&nbsp;MHz to 2025&nbsp;MHz, as well as 902&nbsp;MHz to 928&nbsp;MHz and 2400&nbsp;MHz to 2483,5&nbsp;MHz [[ISM band]] with frequency-hopping for the U.S. market. The most common spectrum allocation is 1880&nbsp;MHz to 1900&nbsp;MHz; outside Europe, 1900&nbsp;MHz to 1920&nbsp;MHz and 1910&nbsp;MHz to 1930&nbsp;MHz spectrum is available in several countries. 
** {{nowrap|1880–1900&nbsp;MHz}} in Europe, as well as South Africa, Asia, Hong Kong,<ref>{{cite web|title=Beware of Buying Radiocommunications Equipment not Meeting Prescribed Specifications|url=http://www.ofca.gov.hk/en/consumer_focus/education_corner/alerts/radiocomm/beware/index.html|publisher=Office of the Communications Authority|access-date=30 March 2014|archive-date=21 October 2019|archive-url=https://web.archive.org/web/20191021103743/https://www.ofca.gov.hk/en/consumer_focus/education_corner/alerts/radiocomm/beware/index.html|url-status=dead}}</ref> Australia, and New Zealand
** {{nowrap|1786–1792&nbsp;MHz}} in Korea
** {{nowrap|1880–1895&nbsp;MHz}} in Taiwan
** {{nowrap|1893–1906&nbsp;MHz}} (J-DECT) in Japan
** {{nowrap|1900–1920&nbsp;MHz}} in China (until 2003){{citation needed|date=January 2017}}
** {{nowrap|1910–1920&nbsp;MHz}} in Brazil
** {{nowrap|1910–1930&nbsp;MHz}} in Latin America
** {{nowrap|1920–1930&nbsp;MHz}} (DECT 6.0) in the United States and Canada
* Carriers (1.728&nbsp;MHz spacing):
** 10 channels in Europe and Latin America
** 8 channels in Taiwan
** 5 channels in the US, Brazil, Japan
** 3 channels in Korea
* Time slots: 2&nbsp;×&nbsp;12 (up and down stream)
* Channel allocation: dynamic
* Average transmission power: 10&nbsp;mW (250&nbsp;mW peak) in Europe & Japan, 4&nbsp;mW (100&nbsp;mW peak) in the US