VoIP is the abbreviation for Voice over Internet Protocol. Voice over Internet is a category of equipment and programs that allows individuals to use the Internet as a vehicle for transmitting phone calls by sending voice information in bundles over IP rather than through the benefits of VoIP. VoIPO’s favorite is that the phone brings on the Internet does not entail any additional cost compared to what the customer pays for accessing the internet, in the same way that the customer does not pay for sending individual emails. Internet. There are many accessible Internet communication applications. A few, like CoolTalk and NetMeeting, come with popular web programs. Others are autonomous products. IP telephony is also called Internet telephony, IP communication or Internet telephony (VOI).