VOIP

(Voice Over IP) A specification and various technologies used to allow making telephone calls over IP networks, especially the Internet.

Just as modems allow computers to connect to the Internet over regular telephone lines, VOIP technology allows humans to talk over Internet connections.

Costs for VOIP calls can be a lot lower than for traditional telephone calls. Because the IP networks are packet-switched this allows for vastly different ways of handling connections and more efficient use of network resources.

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