Henry Sinnreich
HENRY SINNREICH is a Distinguished Technical Member of Engineering at WorldCom and has worked on telephony systems, fiber optics, data services, and Internet services. He is an active member of IEEE, ACM, and the Internet Society, where he contributes to Internet standards efforts within the IETF(Internet Engineering Task Force). ALAN B. JOHNSTON is also a Distinguished Technical Member of Engineering at WorldCom and an Adjunct Professor of Electrical Engineering at Washington University in St....See more
HENRY SINNREICH is a Distinguished Technical Member of Engineering at WorldCom and has worked on telephony systems, fiber optics, data services, and Internet services. He is an active member of IEEE, ACM, and the Internet Society, where he contributes to Internet standards efforts within the IETF(Internet Engineering Task Force). ALAN B. JOHNSTON is also a Distinguished Technical Member of Engineering at WorldCom and an Adjunct Professor of Electrical Engineering at Washington University in St. Louis. As an active participant in the IETF, he has coauthored and edited several SIP drafts specifications. He is also the author of a previous book about SIP. See less
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