IP telephony technology and softswitch

Author: Gui Haiyuan
Publisher:
Publish Date: 2004-05-01
Features: This book provides a detailed introduction to the basic concepts of IP telephony, related voice processing technologies, H.323 and SIP protocols, several measures to improve the quality of service in IP networks, ATM speech channel technology, IP telephone systems with separated gateways and softswitch architecture, Media Gateway Control Protocol (MGCP) and Signaling Transport Protocol (SIGTRAN), and other technologies related to IP telephony and next-generation networks. The book comprehensively discusses and explains technologies related to IP telephony and softswitching. It mainly includes the basic concepts of IP telephony, the general structure of IP telephone networks, and the general processing process of IP telephony. The technical foundation of IP telephony, voice processing technologies, the structure of the H.323 protocol stack, the structure of IP telephone systems based on H.323, and the functions of major equipment in IP telephone networks. IP telephone technology based on SIP, the main factors affecting the quality of service of IP telephony, and the main measures taken by IP networks to improve the quality of service for IP telephony. IP telephone systems with separated gateways and softswitch architecture, Media Gateway Control Protocol (MGCP) and Signaling Transport Protocol (SIGTRAN). This book is intended for use as a teaching text in higher education institutions and can also serve as a technical reference for communication engineering professionals.