What is the full form of VoIP?

[ A ]    Voice of Internet Power
[ B ]    Very Optimized Internet Protocol
[ C ]    Voice Over Internet Protocol right
[ D ]    Very Official Internet Protocol
[ E ]    Voice on Internet Protocol
Answer : Option C
Explanation :
VoIP stands for Voice over Internet Protocol. It is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. VoIP services convert voice into a digital signal that travels over the Internet.