What is special about VOIP is that it's just another thing you can do on the Internet, whereas it is the only thing - or nearly the only thing with the exception of the dial-up modem and fax - that you can do on the public switched telephone network. ↗
Religion is the organization of spirituality into something that became the hand maiden of conquerors. Nearly all religions were brought to people and imposed on people by conquerors, and used as the framework to control their minds. ↗
People nearly always believe, and are willing to back it up with weapons and cruelty, that their religion and way of life is better than the other person's. ↗