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DECT (Digital European Cordless Telecommunications)

What is DECT (Digital European Cordless Telecommunications)?

DECT is the abbreviation for “Digital Enhanced Cordless Telecommunications”. This is a telecommunications standard for wireless telephony via radio. DECT (Digital European Cordless Telecommunications) was introduced in 1993 as a standard for wireless mobile phones. Each DECT unit consists of a base station and one or more mobile phones. The phones are connected to the base station via radio. The base station serves as an access point to the telephone or Internet connection.

How it works

A cordless DECT phone is equipped with an analog-to-digital converter (AD converter) behind the microphone and a digital-to-analog converter (DA converter) in front of the earpiece speaker. When telephoning, the tones are converted into digital signals, radioed to the base station and forwarded by it to the telephone network. At the receiver, the signals are converted back into analogue tones. The digital data is encrypted before transmission so that it cannot be easily intercepted. The DECT standard has a range of about 30 to 50 m inside buildings, depending on the building structure. Outside buildings, the range can be up to 300 m with a clear line of sight. In the meantime, routers for the Internet can be used as a DECT base. A separate base station is no longer required, so that smartphones can also be used as DECT (Digital European Cordless Telecommunications) phones.


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