Commercial Dect Phones's system is very easy to use. To explain it simply, let's start with the base station. The base station is directly connected to a phone line and it converts the signal into radio waves when it receives a call. Once the signal has been converted into radio signals the decoder then converts the radio signals to sound. Commercial Dect phones have advanced features such as display screen, ID caller, good range, and amazing sound quality--that's why many people prefer this phone over others.