CABA Information Series
IS-2005-23: The Future Success of VoIP – It’s All About Timing
This paper from Symmetricom presents a technical comparison of conventional circuit switched telephone service and packet switched voice telephony. The latter is now called Voice –over-IP (VoIP). Technical issues include timing errors due to transmission delays through the Internet and buffering at network routers. Methods for measuring time delays and establishing synchronization across the Internet are discussed.