![]() ![]() So at their core, they are no different from e-mails, instant messages or Web pages, which all can be distributed for free between Internet-connected machines. VoIP calls are just another application riding over the Internet. VoIP refers to voice calls that are routed over online networks using the Internet Protocol-the IP that serves as the backbone of the Internet and is used to ferry e-mails, instant messages and Web pages to millions of PCs or cell phones. The key to making the most of VoIP is understanding its basic forms and what you might expect to pay for them. ![]() Many VoIP services are available for as little as $20 a month, though with some important constraints. VoIP-which enables phone calls to be carried over the Internet-also is one of the most economical phone technologies available. Current estimates put the number of VoIP users at about 5 million, although industry observers say that number will increase fivefold in the next two years. Since about 1995, when it was first offered to consumers, VoIP has become one of the world's most widely used telephony products. As the popularity of voice over Internet Protocol surges, and lawmakers put more pressure on Net phone providers to fully support 911 services, many consumers are asking what exactly they need to know about the technology.
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March 2023
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