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Whats the difference between voip and internet telephony?

April 26, 2017Computer Computers difference India internet networking Telephony voip

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Whats the difference between voip and internet telephony?

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Voice over Internet Protocol (Voice over IP, VoIP) is a general term for a family of methodologies, communication protocols, and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Internet telephony refers to communications services — voice, facsimile, and/or voice-messaging applications — that are transported via the Internet, rather than the public switched telephone network (PSTN).

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These two terms are use frequently interchangeably but they are in fact different. VoIP describes the actual method of transmitting voice over an IP network while IP telephony describes telephony devices that use IP as the native transport for voice and call signalling. IP telephony needs VoIP to send calls over the network but VoIP does not nee IP telephony.