Those using, or working on, IT were referred to as the lunatic fringe by those in conventional telephony. Today, Internet Telephony is accepted as mainstream technology. IT has become the logical successor to the circuit switched telephony that evolved over the past 125 years. This talk contains an overview of IT, from its start as a cheaper way to make phone calls from PC to PC up through today. This includes both a description of the technology that has already been created and the technical hurdles that still lie ahead.
Conventional telephony is complex.
Finally, we include some visions of the future. Richard V. Cox received his Ph.D. in Electrical Engineering from Princeton University. In 1979 he joined the Acoustics Research Department of Bell Laboratories. He conducted research in the areas of speech coding, digital signal processing, analog voice privacy, audio coding, and real-time implementations. He is well known for his work in speech coding standards.