Voice over IP Fundamentals - Couverture rigide

Davidson, Jonathan; Peters, James F.; Gracely, Brian

Couverture rigide

ISBN 10 : 1578701686 ISBN 13 : 9781578701681

Editeur : Cisco Press, 2000

Synopsis

Book by Davidson Jonathan Peters James Gracely Brian

A propos du livre

Quatrième de couverture :

A systematic approach to understanding the basics of voice over IP

 

Understand the basics of enterprise and public telephony networking, IP networking, and how voice is transported over IP networks

Learn the various caveats of converging voice and data networks

Examine the basic VoIP signaling protocols (H.323, MGCP/H.248, SIP) and primary legacy voice signaling protocols (ISDN, C7/SS7)

Explore how VoIP can run the same applications as the existing telephony system but in a more cost-efficient and scalable manner

Delve into such VoIP topics as jitter, latency, packet loss, codecs, QoS tools, and security

 

Voice over IP (VoIP) has become an important factor in network communications, promising lower operational costs, greater flexibility, and a variety of enhanced applications. To help you understand VoIP networks, Voice over IP Fundamentals provides a thorough introduction to the basics of VoIP.

 

Voice over IP Fundamentals explains how a basic IP telephony infrastructure is built and works today, major concepts concerning voice and data networking, and transmission of voice over data networks. You’ll learn how voice is signaled through legacy telephone networks, how IP signaling protocols are used to interoperate with current telephony systems, and how to ensure good voice quality using quality of service (QoS).

 

Even though Voice over IP Fundamentals is written for anyone seeking to understand how to use IP to transport voice, its target audience comprises both voice and data networking professionals. In the past, professionals working in voice and data networking did not have to understand each other’s roles. However, in this world of time-division multiplexing (TDM) and IP convergence, it is important to understand how these technologies work together. Voice over IP Fundamentals explains all the details so that voice experts can understand data networking and data experts can understand voice networking.

 

The second edition of this best-selling book includes new chapters on the importance of billing and mediation in a VoIP network, security, and the common types of threats inherent when packet voice environments, public switched telephone networks (PSTN), and VoIP interoperate. It also explains enterprise and service-provider applications and services. 

Présentation de l'éditeur :

A systematic approach to understanding the basics of Voice over IP

• Understand the basics of PSTN services and IP signaling protocols, including SS7
• Learn how VoIP can run the same applications as the existing telephony system, but in a more cost-efficient and scalable manner
• Delve into such VoIP topics as jitter, latency, packet loss, codecs, quality of service tools, and mean opinion scores
• Learn about the functional components involved in using Cisco gateways to deploy VoIP networks

Voice over IP (VoIP), which integrates voice and data transmission, is quickly becoming an important factor in network communications. It promises lower operational costs, greater flexibility, and a variety of enhanced applications. Voice over IP Fundamentals provides a thorough introduction to this new technology to help experts in both the data and telephone industries plan for the new networks.

You will learn how the telephony infrastructure was built and how it works today, the major concepts concerning voice and data networking, transmission of voice over data, and IP signaling protocols used to interwork with current telephony systems. The authors cover various benefits and applications of VoIP and how to ensure good voice quality in your network.

This book is part of the Networking Technology Series from Cisco Press, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

À propos de cette édition

• Éditeur: Cisco Press
• Date d'édition: 2000
• ISBN 10: 1578701686
• ISBN 13: 9781578701681
• Reliure: Relié
• Numéro d'édition: 1
• Nombre de pages: 408