Автор - Alan B. Johnston
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Understanding Voice over Ip Security (Artech House Telecommunications Library)
EAN 9781596930506 151.56 USD -
SIP: Understanding the Session Initiation Protocol, Second Edition
EAN 9780895778864 87.47 USD -
Internet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation Protocol (Networking Council)
EAN 9780471776574 67.75 USD