DECT Cordless TelephonesJuly 14, 2008
DECT Cordless Phones operate on a 2.4Ghz spectrum and have a maximum range of up to 300 meters in a clear line of sight situation whilst operating at more like up to 50 meters in environments where there is some electronic interference or solid boundaries such as walls for the signal to pass through.
The DECT system is built and manufactured according to the DECT European Standards as defined by The European Telecommunications Standards Institute in 1992. Since the initial stipulations of the ETSI committee the legislation has concentrated upon ensuring the interoperabilty of DECT cordless equipment from different manufacturers via the implementation of Generic Access Protocol ( GAP).
The basic operating principles of DECT Cordless Telephony are:
- high capacity structured network access
- network wide mobility
- flexibility
- high spectrum efficiency
- reliable – high quality and secure – radio access
- robustness in hostile radio environments
- speech transmission quality comparable to the wired telephony service
- enabling cost efficient implementations of system components
- allowing for implementation of a wide variety of terminals like e.g. small pocketable handsets
- flexibility towards varying bandwidth needs
The operating principles above have been met and exceeded with every new DECT model from a host of manufacturers including Siemens, Philips and BT ( who produce the majority of cordless phones for the UK). DECT continues to set the standards for PSTN voice communications throughout the UK and Europe whilst Cordless Telephones have become more and more prevalent in homes and offices since ETSI’s legislation was adopted in the early nineties.
Resources :
European Telecommunications Standards Institute
DECT on the Wikipedia
Browse DECT Cordless Phones on Telephonesonline.
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