Internet Protocol (IP) telephony is the ability to do what has been traditionally done over circuit switched phone lines (PSTN), but is done over an Internet Protocol (IP) network. It is the real time transmission of voice signals using IP over the public Internet or a private data (Intranet) IP network. The terms IP telephony and Internet telephony are often used interchangeably, but are fundamentally difference in practice. Internet telephony implies two users each using …showed first 75 words of 2151 total…

…showed last 75 words of 2151 total…International Data Corporation 2) IP Telephony Market Overview & Competitive Landscape 3/27/98, AT&T Labs West 3) IP Telephony Market Overview & Competitive Landscape – Update 10/15/98, AT&T labs West 4) Regulatory Impact of Voice over IP, Analysys Publications 5) Enterprise Voice over IP, Forrester Research 5/11/99 6) Voice over Packet Networks, Probe Research 01/02/00 7) Werbach, Kevin, “Digital Tornado: The Internet and Telecommunications Policy”, March 1997 8) Voice over IP: More like a whisper, Jupiter Communications 09/07/99 9) Long Distance Competition: IP Telephony, RBOCS, IXCS, and fiber - 05/01/99 Strategis Group