VoIP is the advanced audio
and video technology with various applications that make it essential for
individuals and enterprises. How VoIP operates is completely revolutionary as
it accelerates the process of transferring analog audio signals by transforming
them to digital ones. To understand the basics of VoIP you`ll need to make it
clear how the audio communication, predecessor of VoIP, works.
Analog phone calls are
carried out through via fiber optic cables by digitizing voice data for
transferring the signal across long distances, but once it reaches the final
location (office or home phone, for example), the signal is again transformed
to analog. During analog phone calls the switches are never closed even when
there is no conversation. When one of the interlocutors is speaking and the
other is listening, the circuit remains also open. This is not efficient, as it considerably decelerate
the communication.