voip basics

How VoIP works

July 25th, 2012 by VOIP Bangladesh

The current phone system relies on a reliable but largely inefficient method for connecting calls known as circuit switching. This technique, which has been used for over 100 years, means that when a call is made between two people a connection is maintained in both directions between callers for the duration of the call. This dual directional characteristic gives the system the name circuit. Read the rest of this entry »