| Cordless
phones in the US are about to get a major boost from DECT
technology, just approved by the Federal Communications Commission
(FCC). The FCC has granted DECT-based wireless telephony permission
to operate in the 1920-1930 MHz band, as part of a "general
reorganization of frequency bands in the US," the DECT
Forum said.
DECT ("Digital Enhanced Cordless Telecommunications")
wireless technology is suitable for voice, multimedia, and
data networking traffic, including Internet access, and integrates
well with other fixed and wireless services such as ISDN and
GSM, according to the DECT Forum. DECT also boasts a claimed
range of up to a few hundred meters, encryption to ensure
a high degree of call security, and "optimized"
radio transmission that maximizes handheld device battery
life.
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Benefits of DECT technology, according to
the Forum, include "brilliant quality of voice and sound,
high protection against wiretapping, simultaneous usage of
multiple cordless phones, which can be operated in basic stations
of different vendors (GAP standard), toll free internal calls,
handover, and various additional features such as VoIP, push-to-talk
(walkie-talkie), and instant messaging."
Capabilities of DECT are said to include:
* TDMA (Time Division Multiple Access) radio
access -- low interference and high system capacity
* ADPCM (Adaptive Differential Pulse Code
Modulation) speech encoding -- ensures very high speech quality,
comparable to wireline telephony
* DCS/DCA (Dynamic Channel Selection / Allocation)
-- a unique DECT capability that guarantees that the best
radio channels available are used; ensures that DECT telephony
can coexist with other DECT applications, and with other systems
in the same frequency, with high-quality, robust and secure
communications for end-users
Earlier this week, Linksys announced a DECT-based
cordless VoIP handset using a PC running Skype. According
to Linksys, the CIT200 allows users to make VoIP phone calls
as easily as today's cordless handsets make conventional landline
calls. The Linksys DECT-based cordless VoIP phone claims a
range of 300 meters outdoors, and 50 meters indoors.
The DECT Forum, based in a Berne, Switzerland,
is a global industry association of suppliers and operators
of DECT based terminals, systems, and networks. "Full
members" of the organization currently include Ascom
Tateco, Binatone, DSP Group, Eatoni, Ericsson, Infineon, Kirk,
Panasonic, RTX, Siemens, SunCorp, and Tenovis.
Digital
Enhanced Cordless Telecommunications |
DECT
- A Brief Explanation |
How
to choose a DECT cordless phone |
DECT
wireless telephony | The
future of DECT ? |
