American English

Definition of VoIP noun from the Oxford Advanced American Dictionary



(also IP telephony) [uncountable]
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the abbreviation forvoice over Internet protocol(a telephone system that allows users to make and receive calls using the Internet) the impact of VoIP services on traditional phone companies Learn how to make free VoIP calls. You can get unlimited broadband phone services with VoIP.
See the Oxford Advanced Learner's Dictionary entry: VoIP