What Is The Difference Between VoIP and IP Telephony
The terms are often used interchangeably, but there is a subtle difference between them.
IP telephony describes any system that fits within the internet-based telecommunications umbrella, including fax and other systems.
Initially, the term VoIP (Voice over Internet Protocol) was more specific. It only referred to the technology used to make and receive phone calls over the internet.
In recent years, though, even VoIP providers and telecommunications companies have started to use these terms interchangeably. IP telephony and VoIP both cover phone systems that use a LAN (local area network) to connect to the internet via a modem/router.
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