VoIP - definition:
VoIP stands for Voice over Internet Protocol

Quick definition of VoIP is an Internet Phone


Definition:
VoIP stands for Voice over Internet Protocol. Using VoIP, voice information is converted into digital packets and sent over the Internet, and then converted back into analog signals before reaching the phone receiver at the other end.


Definition of VoIP

(Voice Over IP) A digital telephone service that uses the public Internet as well as private backbones instead of the traditional telephone network. Many companies, including Vonage, 8x8 and AT&T (CallVantage), typically offer calling within the country for a fixed fee and a low per-minute charge for international. Broadband Internet access (cable or DSL) is required, and regular house phones plug into an analog telephone adapter (ATA) provided by the company or purchased from a third party.


What is VoIP?
VoIP (voice over IP) is an IP telephony term for a set of facilities used to manage the delivery of voice information over the Internet.VoIP involves sending voice information in digital form in discrete packets rather than by using the traditional circuit-committed protocols of the public switched telephone network (PSTN). A major advantage of VoIP and Internet telephony is that it avoids the tolls charged by ordinary telephone service.


VoIP in short non-technical terms
it allows all users of broadband Internet access to make and receive regular phone calls via internet or to talk computer to computer across the planet - usually in local phone call quality.