I used to think that phone calls were always made via a regular line, until I learned about VoIP. I read an article on https://www.mightycall.com/blog/what-is-voip/ and realized how convenient it is: calls are made via the Internet, and the quality is often better. For business, this is a godsend - less expenses and more opportunities. Now I use VoIP and see how it simplifies communication with clients.