Delivering Voice over Frame Relay and ATM

This text explains what the investment in delivering voice over frame relay and ATM could be in terms of money and technology, and how to decide whether or when to invest. Coverage includes: a telephony tutorial for packet network managers; voice over frame relay; voice over ATM; and voice over the Internet. The author also provides a major case study and overviews of the enabling technologies - voice characteristics, compression standards, quality of service and perspectives on a developing market.