Voice over Internet Protocol (VoIP) is a technology that allows users to make voice calls over the internet. This is in contrast to traditional phone calls, which are made through a public switched telephone network (PSTN). VoIP calls are typically made using a computer, smartphone, or other internet-connected device. VoIP has a number of advantages over traditional phone calls, including lower cost, greater flexibility, and the ability to make calls to anywhere in the world with an internet connection.
VoIP has become increasingly popular in recent years as the internet has become more widely available and affordable. VoIP is now used by businesses and consumers alike for a variety of purposes, including making long-distance calls, staying in touch with family and friends, and conducting business meetings. VoIP has also played a significant role in the development of new communication technologies, such as video conferencing and unified communications. VoIP is expected to continue to grow in popularity in the years to come as the internet continues to evolve and become even more ubiquitous.