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Other titles in the Interactive Workbook series:
Putting Voip to Work: Softswitch Network Design and Testingby Bill Douskalis
Synopses & Reviews
The in-depth, up-to-the-minute technical guide to developing and deploying IP-based telephony.
This is a complete, in-depth technical guide to the challenges associated with building and deploying Voice over IP (VoIP) networks using softswitch technologies—and today's best solutions. Bill Douskalis, author of the best-selling IP Telephony, reviews the entire current state of the art in protocols for signaling, media transport, and network engineering—and presents expert guidance on designing telephony solutions that meet the needs of both carriers and customers. Coverage includes:
Nobody has more experience implementing VoIP in large-scale networks than Bill Douskalis—and no book offers more insight for real-world VoIP design, construction, and deployment.
"The book is very well written and provides the practical information on all aspects of a VoIP network in the ever-changing field of communication technologies."
—Dr. Tushar Bhattacharjee, AT&T, Polytechnic University of New York
Book News Annotation:
Presents the protocols and topologies necessary to build a voice over IP (VoIP) network using softswitch tecnologies. The book's approach places the current state of the art in signaling and media transport on top of a reference topology that requires a multitude of specifications to be correctly implemented in order to function properly. In this context, the author discusses call flows, conferencing, interfacing with the PSTN, and replication of existing intelligent network features and services.
Annotation c. Book News, Inc., Portland, OR (booknews.com)
Putting VoIP to Work is an in-depth technical guide to building VoIP networks using softswitch technologies that addresses key challenges and provides optimal solutions. Bill Douskalis reviews the state of the art in signaling, media transport, and network engineering — and offers expert guidance on designing and testing toll solutions that meet the needs of both carriers and customers.
About the Author
BILL DOUSKALIS holds a BSEE and MS in Mathematics and has been designing, developing, deploying, and troubleshooting network equipment and systems for over 20 years. He has worked extensively with leading telecommunications companies, including AT&T Bell Laboratories; Sprint, where he worked on the state-of-the-art ION Network; and Global Crossing, where he is serving as consulting member of the VoIP architecture team. Bill has also consulted with leading test equipment manufacturers such as Agilent Technologies.
Table of Contents
1. Protocols and Topologies of the New PSTN.
The Continuing Evolution of the VoIP Protocol Stack. H.323: More Efficient Ways to Signal, with a Common Denominator. MGCP and NCS. SIP (RFC2543). The SDP Protocol: RFC 2327 with Extensions in RFC 2848 (PINT). Codecs, Tones, Faxes. H.248: The Megaco Protocol. SCTP: Stream Control Transport Protocol (RFC2960). Transport Adapter Layer Interface (TALI). Signaling Transport User Adaptation Layer Protocols: M3UA, M2UA, SUA, and IUA. Firewalls. Other Protocols.
2. Topologies, Equipment, and Communications.
Wireline, Point-to-Point Access Network. Service Provider End Office. Concluding Observations. Signaling, Media, and Platforms: The Necessities.
3. SONET and DWDM Technology Overview: The Present and the Future.
4. The Pursuit of QoS in Packet Networks.
From Best Effort Service to Predictable Performance. Concluding Comments.
5. H.323: The Next Generation.
Protocol Overview. Registration, Admission, Status (RAS). Call Setup and Termination. H.323 over UDP. Ad Hoc Conferencing. Feature Call Flows. Firewalls.
6. Media Gateway Control Protocol.
Protocol Overview. Media Gateway Initialization and Registration with the Softswitch. Call Setup and Termination. MGCP-ISUP Interworking. Special Call Flows. SDP Protocol Review.
7. H.248: Megaco Protocol.
Protocol Overview. Registration with the MGC and Initialization. Call Setup. Extensions and Enhancements to Basic Megaco Signaling. Concluding Remarks.
8. SIP: The Evolution of the Session Initiation Protocol.
Protocol Overview. Basic Signaling with SIP Endpoints. SIP-PSTN Interworking. Compliance and Failure Scenarios.
9. PSTN Signaling Adaptation and Transport.
PSTN Protocols over IP. SCTP. M2UA. M3UA. Transport Adapter Layer Interface (TALI). Fax Relay in IP Networks. General Observations on Testing Issues. Keeping Track of the Objective. Direction in LAN Equipment Infrastructure.
Appendix A: Call Capacity Considerations.
Appendix B: Abbreviations and Acronyms.
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