IP Telephony

Deploying Voice-Over-IP Protocols

Olivier Hersent, David Gurle, Jean-Pierre Petit

382 pages, parution le 27/01/2005

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Résumé

IP (internet protocol) Telephony, enabled by softswitches, is going to usher in a new era in telecommunications. By putting voice and data over one IP network, operators can enjoy lower costs and create new, revenue-generating "multimedia" services.

This valuable reference offers a comprehensive overview of the technology behind IP telephony and offers essential information to network engineers, designers and managers who need to understand the protocols and explore the issues involved in migrating the existing telephony infrastructure to an IP-based real time communication service.

Drawing on extensive research and practical development experience in VoIP from its earliest stages, the authors give access to all the relevant standards and cutting-edge techniques in a single resource.

IP Telephony: Deploying Voice-over-IP Protocols:

Assumes a working knowledge of IP and networking and addresses the technical aspects of real-time communication over IP.
Presents a high level overview of packet media transport technologies, covering all the major VoIP protocols - SIP, H323 and MGCP
Details specific strategies to design services for public networks where endpoints cannot be trusted and can be behind firewalls.
Explores the problems that may arise from incomplete protocol implementations, or architectures optimized for private networks which fail in a public environment.

This amply illustrated, state-of-the art reference tool will be an invaluable resource for all those involved in the practical deployment of VoIP technology.

L'auteur - Olivier Hersent

Olivier Hersent est polytechnicien/ENST. Fondateur et directeur technique de NetCentrex (voix sur IP), puis CTO de Comverse, il est fondateur et dirigeant de Actility (M2M). Il est l'auteur de deux ouvrages de référence sur la voix sur IP.

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L'auteur - David Gurle

David Gurle, WW VP Collaboration Services Reuters

L'auteur - Jean-Pierre Petit

Jean-Pierre Petit dirige le Département Interactions Humaines (DIH/IPS) de France Telecom R&D.

Sommaire

Voice over Packet
- Transporting voice, fax and video over a packet network
- Encoding media streams
H.323
- Introduction
- H.323 step by step
- Optimising and enhancing H.323
- Conferencing with H.323
- Directories and numbering
- H.323 Security
- Supplementary services
- Future work on H.323
SIP
- The origin and purpose of SIP
- From RFC 2543 to RFC 3261
- Overview of a simple SIP call
- Call handling services with SIP
- Instant messaging and presence
- SIP security
- SIP and H.323
MGCP
- Introduction: why MGCP?
- MGCP 1.0
- Sample MGCP call flows
- The future of MGCP 63
Practical Deployment Issues
- Call redirection in VOIP networks
- Introduction to Network address translation
- Workarounds for VOIP when the Network cannot be controlled
- Recommended Network design for service providers

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Caractéristiques techniques

	PAPIER
Éditeur(s)	Wiley
Auteur(s)	Olivier Hersent, David Gurle, Jean-Pierre Petit
Parution	27/01/2005
Nb. de pages	382
Format	17 x 25
Couverture	Relié
Poids	838g
Intérieur	Noir et Blanc
EAN13	9780470023594
ISBN13	978-0-470-02359-4