What is VoIP?
Voice over Internet Protocol (VOIP) is a protocol for the transmission of voice data via the Internet. In plain English, this gives one the ability to make voice calls over the Internet. Other terms used are Internet Telephony, Broadband Phone, IP Telephony or Voice Over Broadband. The providers of the Internet Telephony services use different protocols for transmitting the voice signals over an IP network on the Internet. These protocols are referred to as Voice Over IP.
Internet Phone: History of Voice Over Internet Protocol
The idea of being able to make telephone calls over the Internet has been around ever since the beginning of the development of the Internet. The Network Voice Protocol was an experiment carried out by the people who founded the ARPANET (the prototype of the internet as we know it today).
These experiments resulted in the internet being used to transmit voice signals as early as 1973. However, this technology only became available to end-users like you and me, from the 1990s. The later part of the 1990s witnessed many technological developments in this field, which has resulted in the VOIP facilities being commonly available to everyone today.