What Is DECT Wireless Phone Technology
July 28, 2014
In a recent post I talked about how I was involved in setting up a wireless internet system including VoIP and it has been a pretty popular post. The undying nerd in me was drawn to the cordless phone technology, especially because I have a huge interest in wireless communications technology. Over the past couple of weeks I have researched more about the wireless phone technology and decided to write it up in a post here.
The technology is called DECT. Technically it’s not really a technology, but rather an industry standard that originated in Europe. Digital Enhanced Cordless Telecommunications (DECT for short) has been adopted all over Europe, Australia, North America and the USA. It took a while longer in the US as there were problems with the frequencies used. So in reality, there is a slightly different standard implemented in America which you will often see referenced as DECT 6.0. Getting the frequency range right is important, and you should make sure that you do not use a European DECT phone in the US and vice versa.
The great thing about DECT is that it can be used for homes, small businesses and even large corporate settings. Because of the large frequency range and the way large phone systems can communicate it is a great way to have a flexible system. As you require more phones you just add them to the system and you are ready to go.
What really stands out as well is that there is a built in security control providing encryption through the DECT Standard Cipher. This means that communications between a handset and the base or central station are encrypted making it very difficult to eavesdrop in on conversations. All the devices I have looked at during my nerd adventure have pretty good encryption built in, meaning that your cordless phone is probably more difficult to listen in on than a regular corded phone.
The frequency band used by DECT is 1880 to 1900 MHz with defined channels. By implementing Frequency hopping spread spec on 12 duplex voice channels which all helps in making sure that a lot of different devices can be implemented in one area without interfering with each other.