How Much Do You Know About The Voice Over Internet Protocol (VoIP)?Do You Know Everything About The IP Telephony ?Advantages & Disadvantages of IP Telephony or Voice Over Internet Protocol (VoIP)What is the meaning of Internet Protocol Telephony?What do you understand by the term IP Telephony? What Is Voice Over IP And How It Works ? VoIP is a technique for turning analog audio signals into digital packets that can be transferred over the internet.VoIP has the quality to fully revolutionise the way the worlds phone systems operate.VoIP as it is known, can be a viable and economic option to the Plain Old Telephone System (POTS).