Sip: Understanding the Session 4th Ed

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Comprehensive current understanding of this revolutionary protocol for call signalling and IP telephony.ASIN: 1608078639VSKU: GBV.1608078639.ACondition: AcceptableAuthor/Artist:Joh nston, Alan B.Binding: HardcoverNote: Any images shown are stock photographs and product may differ from what is shown. Condition Notes: This book is in acceptable condition and may have highlighting and or writing throughout. The actual cover image may not match the stock photo, dust jacket may be damaged or missing. Book may show internal and or external wear on spine or cover and may be slightly skewed or have creased pages. This is a used book so codes may be invalid or accompanying media may be missing. May be an Ex library book with stickers and stamps. Show more