TAILIEUCHUNG - Packet Guide to Voice over IP

What Is VoIP? Real-time Versus Nonreal-time Data Why Change to VoIP? The Business Case VoIP and FCC Regulation 911 A Note on Power General VoIP Topologies Power over Ethernet PoE Basic Operation VoIP Protocols Signaling Protocols Transport Protocol VoIP Basic Operation Performance Unified Communications Summary Standards and Reading Review Questions Review Question Answers Lab Activities Activity 1—Review of the Standards Activity 2—Download Wireshark and the Capture Files for This Chapter Activity 3—Examine VoIP Offerings in Your Area Activity. | A System Administrator s Guide to VoIP Technologies O REILLY Bruce Hartpence Packet Guide to Voice over IP Go under the hood of an operating Voice over IP network and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide you ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown. With packet captures available on the companion website this book is ideal whether you re an instructor student or professional looking to boost your skill set. Each chapter includes a set of review questions as well as practical hands-on lab exercises. Learn the requirements for deploying packetized voice and video Understand traditional telephony concepts including local loop tip and ring and T carriers Explore the Session Initiation Protocol SIP VoIP s primary signaling protocol Learn the operations and fields for VoIP s standardized RTP and RTCP transport protocols Delve into voice and video codecs for converting analog data to digital format for transmission Get familiar with Communications Systems SIP S widely used predecessor Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world Purchase the ebook edition of this O Reilly title at and get free updates for the life of the edition. Our ebooks are optimized for several electronic formats including PDF EPETB Mobi and DAISY all DRM-free. US CAN ISBN 978-1-449-33967-8 Twitter @oreillymedia oreilly O REILLY Packet Guide to Voice over IP Bruce Hartpence O REILLY Beijing Cambridge Farnham Kôln Sebastopol Tokyo .

• Hệ điều hành
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• Beginner’s Guide
• SharePoint 2010
• Packet Guide to Voice over IP
• Bruce Hartpence
• Bài giảng nhập môn công nghệ phần mềm
• Nhập môn công nghệ phần mềm chương 3
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• Mô hình Walston và Felix