As broadband services roll out to an ever-larger share of households, PSTN replacement services based on VoIP and broadband access are becoming more pervasive. Service providers - both incumbents and new competitors - are using Analog Terminal Adaptors (ATAs) to rapidly deliver voice service to "the broadband masses". The ATA enables service providers to deliver a PSTN-like service directly over a customers' broadband access connection. This white paper explains the ATA and describes some of the essential building blocks and features that enable an ATA to replicate PSTN service quality levels.
PMC-SierraTM is a leading provider of high-speed broadband communications and storage semiconductors and MIPS-PoweredTM processors for Enterprise, Access, Metro Optical Transport, Storage Area Networking and Wireless network equipment. The company offers worldwide technical and sales support, including a network of offices throughout North America, Europe and Asia. The company is publicly traded on the NASDAQ Stock Market under the PMCS symbol and is included in the S&P 500 Index.
About the Authors
Duncan Bees is a Technical Advisor in PMC-Sierra's Communications Products Division. Mr. Bees holds a Masters Degree in Electrical Engineering from McGill University, specializing in speech signal processing and statistical communications, and has 18 years of industry experience. He has worked at PMC-Sierra for the past six years, focusing on VoIP, access, high speed interconnect, and CPE product definition and standards. Prior to joining PMC-Sierra, Mr. Bees worked for ten years at Bell Northern Research and Nortel Networks, where he managed product development teams for CDMA wireless speech and data processing solutions and worked on voice recognition and data modem product design. Before working at Nortel, he spent two years at MacDonald Dettwiler, designing ground station hardware for LANDSAT and SPOT satellites. Mr. Bees is PMC-Sierra's representative for several standards bodies including the Home Gateway Initiative, the DSL Forum, and RapidIO.