Voice over Internet Protocol (VoIP) is a technology that allows voice data to be digitized and split into packets for sending over an Internet protocol (IP) network. Because a user's voice is turned into digital packets, the quality of a VoIP telephone call is higher than that of a regular phone call placed on a packet-switched telephone network (PSTN) system.
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Using VoIP standards, companies have created telephony systems that offer high-level features for end users. These high-level services include: call forwarding, call hunting, and simultaneous ringing.
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