Putting VoIP to Work

Putting VoIP to Work : Softswitch Network Design and Testing

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*VoIP and softswitching: technical challenges, proven solutions *State-of-the-art testing techniques for ensuring superior QoS *Key design approaches for MPLS and differentiated services *Covers protocols, topologies, and call flows *By the author of the best-selling IP Telephony 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: *New scenarios for design of VoIP networks based on Class 4 and Class 5 softswitch network technology *Designing for performance and interoperability: challenges, examples, and comparisons of potential solutions *Protocols of the new converged networks and design requirements for seamless integration of softswitch applications with the PSTN *Call flows for SIP, H. 323, MGCP, and Megaco *Testing tips to ensure consistently high QoS in voiceband applications *MPLS and IP differentiated services in VoIP networks: key roles and integration issues 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 Yorkshow more

Product details

  • Hardback | 352 pages
  • 177.8 x 233.68 x 17.78mm | 544.31g
  • Pearson Education Limited
  • Prentice-Hall
  • Harlow, United Kingdom
  • English
  • 0130409596
  • 9780130409591

About Bill Douskalis

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.show more

Back cover copy

VoIP and softswitching: technical challenges, proven solutionsState-of-the-art testing techniques for ensuring superior QoS Key design approaches for MPLS and differentiated servicesCovers protocols, topologies, and call flowsBy the author of the best-selling IP Telephony 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: New scenarios for design of VoIP networks based on Class 4 and Class 5 softswitch network technology Designing for performance and interoperability: challenges, examples, and comparisons of potential solutionsProtocols of the new converged networks and design requirements for seamless integration of softswitch applications with the PSTNCall flows for SIP, H.323, MGCP, and MegacoTesting tips to ensure consistently high QoS in voiceband applicationsMPLS and IP differentiated services in VoIP networks: key roles and integration issues 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 Yorkshow more

Table of contents

Foreword. Introduction. 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. The Basics. 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. Index.show more

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