Alternative forms 
- (Internet) voice over Internet Protocol (usually read as "Voice over IP"), a telecommunications system that uses the Internet or other Internet Protocol network to transmit telephone calls
The word "VoIP" has been pronounced variably since the inception of the term. Apart from spelling out the acronym letter by letter, vē'ō'ī'pē, there are three other ways it can be pronounced. Both two syllables ways, vō'ī'pē and vō'ip, have been used, but generally, the single syllable vŏy'p (as-in voice) has arguably become the more usual pronunciation.