Talk:Digital Enhanced Cordless Telecommunications
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There are DECT phones in the US but these operate on 2.4 Ghz. Presumably 1880-1900 Mhz was off limits for the FCC
The cell range of DECT is given here as 25-100 m. It should be known that Midas Communications, India, have a range of DECT based Fixed Wireless Access products that have cell ranges upto 10 km. This is based on clear Line of Sight. --Rupam.das 10:34, 16 November 2005 (UTC) This is based on outdoor, directional antennas on the uplink and less tha 60 degrees antenna segment on the BST. Handset will only be provided coverage in 150m - as for any other. Shyam has deployed DECT links (RLL) for as far as 29km. --KH Flottorp 10:28, 9 July 2006 (UTC)
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[edit] Health effects
I yanked this:
- Despite its broad range of technical features, there are considerable health issues with the use of DECT or, in fact, any other wireless devices in that frequency range using pulsed microwave technology. Numerous studies have found effects of these frequencies on body cell communication and the body's hormone levels. While little is known so far on how these low-level effects influence overall health and wellness, longer-term cancer research studies point to an increase of certain types of cancers presumably related to exposure to mobile phone base stations as well as other wireless technology radiation including DECT, wLAN etc. On the basis of these scientific findings, caution should be exercised when switching to a cordless phone using DECT or to any similar wireless technologies. Emmissions to both the user and third parties (neighbours, non-using bystanders) should be avoided. Most DECT base stations do send and, thus, emit radiation around the clock, even when not in use. There are, however, a few selected models available that automatically shut down within 1 or 2 minutes after the end of a call. This will also lower the device's overall energy consumption by a significant amount per year. Strictly limiting exposure (e g by shutting off standby or disconnecting devices from power unless in use) as well as keeping base stations and handsets as far from the body as possible may yield some protection, if avoiding them altogether and repalcing them with an equally feautre-rich corded phone seems unacceptable.
Aside from being generally skeptical about the risk from mobile phones and the like - if there really was a substantial risk, DECT telephones are much lower power than cellphones. this page seems to have a fairly comprehensive analysis of the studies that have been done on cellphone risk; there seems to be very little quantitative evidence to support the case of cellphones as a cancer risk. Any comment on risk from DECT phones should take the vastly lower power levels into account, at the very least. --Robert Merkel 12:56, 12 December 2005 (UTC)
[edit] DECT in the United States
it would seem that there are now 1.9 ghz DECT devices in use in the US now, including the plantronics CS55 headset - http://www.plantronics.com/north_america/en_US/products/cat29880043/cat29880054/prod5430004 -Joe Zasada, May 29, 2006
[edit] Spam / commercial links
I have removed a spam / commercial link to a UK handset retailer cordless-phones.uk.com . I suspect this to be an attempt at increasing search engine ranking. Andrew Oakley 09:30, 18 September 2006 (UTC)
Searching through the history, the spam link appeared to have been added by 62.219.183.196 . Andrew Oakley 09:34, 18 September 2006 (UTC)
[edit] More than one external call at a time
It is not possible to have more than one external telephone call in operation on a typical domestic DECT system. Attempts to make an external call from one handset, whilst an external call is already being taken on another handset, generally give an error or warning, such as an engaged tone. However, this is possible with a business DECT system attached to a PABX.
Here in Germany, consumer DECT systems with an ISDN connection are popular. Siemens and other companies are selling these (f.e. the "Siemens Gigaset CX450 isdn" sells for around 75 Euros). With these devices it's possible to have several internal and external calls simultaneously (using multiple handsets but only one base station). --213.39.129.112 10:38, 25 September 2006 (UTC)
