This
paper explains that VoIP (
Voice over Internet Protocol), also referred to as internet telephony, IP telephony or Voice over the Internet (VOI), is a category of hardware and software that enables people to use the internet as the transmission medium for telephone
calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN. This paper points out that the number of VoIP providers, such as Vonage, is growing steadily; major carriers like AT&T are already setting up VoIP calling plans in several markets in the United States and the FCC is looking seriously at the potential ramifications of VoIP service. The paper relates that there are three different types of VoIP service in common use today: (1) ATA , the simplest and most common way, which is to connect a
standard phone to a computer or internet connection for use with VoIP; (2) IP
phones, specialized phones, which look like normal phones with a handset, cradle and buttons but, instead of having the standard RJ-11 phone connectors, have an RJ-45 Ethernet connector and (3) computer-to-computer, which is the easiest way to use VoIP and does not even require paying for long-distance calls. Illustrations. Table of Contents VOIP- An Overview History of VOIP Making calls through VOIP Main Features of VOIP VOIP: Difference from Standard Phone System: (Circuit Switching) The VOIP Phone System: Packet Switching The Advantage of VOIP VOIP
Hurdles Overcoming the hurdles - CODECS VOIP - For the business world VOIP -In the United States Future of VOIP Conclusion