1st Edition
Architecting the Telecommunication Evolution Toward Converged Network Services
Service-oriented architecture (SOA) uses services as the baseline for developing new architectures and applications, as networks are built specifically to satisfy service requirements. Most services are currently handled over different networks, but newer services will soon require cross-network support. Architecting the Telecommunication Evolution: Toward Converged Network Services outlines the challenges of providing crossover services and the new architectures and protocols that will enable convergence between circuit- and packet-switched networks.
Taking a standards-based approach to converged services, this book lays a foundation for SOA in telecommunications. The authors begin by outlining the development of Internet telephony, focusing on how to use the respective benefits of the traditional public switched telephone network (PSTN) and the Internet to create and implement more value-added services. These two eminent specialists first examine services that originate in the Internet and take advantage of PSTN services, and then explore how discrete events on the PSTN can be used as an impetus to creating services on the Internet. They conclude with a discussion on how this convergence creates smart spaces in the telecoms domain.
Including eight valuable appendices that will aid in the implementation of converged services, Architecting the Telecommunication Evolution is the first book of its kind to offer a survey as well as a practical roadmap to integrating modern networks to achieve better performance and new functionality.
The Evolution of Internet Telephony
Problem Statement
Solutions
INTERNET TELEPHONY: THE EVOLUTION OF A SERVICE-ORIENTED ARCHITECTURE
Introduction
Service Architecture for Traditional Telephone Network
Internet Services Architecture
Requirements of a Telecommunications SOA
Conclusion
BACKGROUND: PROVIDING TELEPHONY SERVICE
Service Architecture for the Wireline Public Switched Telephone Network
Service Architecture for the Cellular Public Switched Telephone Network
Service Architecture for Internet Telephony
COMPARATIVE ANALYSIS OF SIGNALING PROTOCOLS
Desirable Properties of a Candidate Protocol
Protocols Evaluated
Comparative Analysis
The Novel SIP-Based Approach
CROSSOVER SERVICES ORIGINATION ON THE INTERNET
Introduction
Motivation
Call Model Mapping with State Sharing (CMM/SS)
Implementing CMM/SS
Results from CMM/SS
Performance of CMM/SS
CMM/SS: A General Solution
Limitations of CMM/SS
Related Work
Conclusion
CROSSOVER SERVICES ORIGINATING ON THE PUBLIC SWITCHED TELEPHONE NETWORK
Introduction
Architecture for PSTN-Originated Crossover Services
Research Challenges
An XML Schema to Represent Events in the PSTN
Proposed Extensions to SIP
Examples
A Taxonomy of PSTN-Originated Crossover Services
SIP: The Distributed Middleware
Related Work
Conclusion
SMART SPACES IN THE TELECOMMUNICATIONS DOMAIN
Introduction
Research Thrusts of Pervasive Computing
Implementing a Telecommunications Smart Space
Design and Implementation of the Event Manager
Performance Analysis of the Event Manager
Related Work
Conclusion
CONCLUSIONS
APPENDICES
Appendix A: The SPIRITS (Services in PSTN Requesting Internet Services) Protocol
Appendix B: Interworking SIP and Intelligent Network (IN) Applications
Appendix C: XML Schema for PSTN Events
Appendix D: XML Schema for SMS to IM
Appendix E: Raw Data for Event Manager Performance Analysis
Appendix F: Bibliography
INDEX
Biography
Vijay K. Gurbani, Xian-He Sun
"Evolving from the current PSTN to Internet Telephony is not an easy task. … The two authors [of this book] are uniquely qualified to explain how this evolution can be architected. … Both authors have used their unique expertise to produce this very first book on the topic."
-From the Foreword by Roch Glitho, Ph.D., Editor-in-Chief, IEEE Communications Magazine, 2003-2005