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Alan B. Johnston (St. Louis, MO) is a Consulting Member of Technical Staff at Avaya, Inc. He has coauthored the core Internet SIP standard RFC 3261 and four other SIP related RFCs. He is the co-chair of the IETF Centralized Conferencing Working Group and is on the board of directors of the International SIP Forum. His current areas of interest include peer-to-peer SIP and security. Dr. Johnston is a frequent speaker and lecturer on SIP and contributor to various publications, and is an adjunct professor at Washington University in St. Louis, MO.
..".a very good explanation of an interesting topicthe overview of SIP is excellenta call flow explains the complex sequence of events very well..." (Computer Bulletin, September 2002)
..."a good book for what it is..." (M2 Communications, 22 April 2002)
..."a very good explanation of an interesting topicthe overview of SIP is excellenta call flow explains the complex sequence of events very well..." (Computer Bulletin, September 2002)
"About this title" may belong to another edition of this title.
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