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Digital telephony is a fairly general term for telephone traffic that is transported in a digital way. The original analog telephone network has been digitized since the 1980s. Network digitization Circuit switched analog telephone network In the original analog telephone network, copper wire connections were connected to a telephone exchange. The telephone exchange was responsible for making the connection and was previously connected to other exchanges. Several conversations could be conducted over one copper wire by means of frequency multiplexing, that is to say, each call received part of the available frequency space available on the wire. The analog telephone network was a circuit switched network, which means that a fixed communication channel is built up from the caller to the called party. Digital networks have advantages over an analog network, but the biggest advantage of a digital network is the sound quality; with an analog telephone network, the sound quality decreases the further away the interlocutor is, with a […]