voice over internet protocol
- voice over internet protocol
A combination of hardware and software that enables people to use the internet as the transmission medium for telephone calls. For users who have free or fixed-price internet access, voice over internet protocol (VoIP) software provides free telephone calls without additional charge anywhere in the world where VoIP is supported.
Style information: None of the words in this term should be capitalised in the full form, but note the unusual acronym, VoIP, with a small “o” and capital “V”, “I” and “P”.