VoIP Protocols and Types of Architecture
Voice-over Internet Protocol, also known as VoIP, has been creating a buzz for more than five years now. Before, we communicate with distant people using telephone, our primary mode of communication. VoIP has taken over this basic means of communication, we now converse through the use of computers.
Computers initially aimed for just speedier calculations, its main purpose was to make life easier at work and at home. It never struck people as a communication tool up until recently. Internet turned the leaf of communication, one of its primary uses now is communication and data sharing.
There are four different tools for voice transfer, namely IP Phone, IP Converter, Line gateway and fully IP enabled PBX system. Conventional voice carrying system used to convey analog signals, IP enabled VOIP system now transfers digital signals. That is the main difference between the two.
The main protocols used in VOIP are SIP, H.323, MGCP, and H.248/Megaco. Basically, there are two types of architectures in VoIP: centralized and distributed. The said protocols and their used depend on the architecture used for VOIP system in the organization. Say, MGCP and H.248 protocols are used in centralized type of architecture while SIP and H.323 for distributed type of architecture.
These terms may sound very technical but it doesn’t change the fact that VoIP is the future of communication. VoIP offers an array of advantages. To name a few, the cost, data & voice integrated systems and open standards. No additional costs for any calls, unlike the conventional switch network. Additionally, it offers the convenience of your computer being single terminal for all your communication and data sharing needs.
Categories: VOIP Articles Tags: Draft, IP, protocols, Types, used, voip architecture, voip protocols
IP Telephony: Deploying Voice-over-IP Protocols Reviews
IP Telephony: Deploying Voice-over-IP Protocols
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.
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Categories: VOIP Products Tags: Deploying, protocols, Reviews, telephony, VoiceoverIP
IP Telephony: Deploying VoIP Protocols and IMS Infrastructure
IP Telephony: Deploying VoIP Protocols and IMS Infrastructure
All you need to know about deploying VoIP protocols in one comprehensive and highly practical reference – Now updated with coverage on SIP and the IMS infrastructure
This book provides a comprehensive and practical overview of the technology behind Internet Telephony (IP), providing essential information to Network Engineers, Designers, and Managers who need to understand the protocols. Furthermore, the author explores the issues involved in the migration of existing telephony infrastructure to an IP – based real time communication service. Assuming a working knowledge of IP and networking, it addresses the technical aspects of real-time applications over IP. Drawing on his extensive research and practical development experience in VoIP from its earliest stages, the author provides an accessible reference to all the relevant standards and cutting-edge techniques in a single resource.
Key Features:
- Updated with a chapter on SIP and the IMS infrastructure
- Covers ALL the major VoIP protocols – SIP, H323 and MGCP
- Includes a large section on practical deployment issues gleaned from the authors’ own experience
- Chapter on the rationale for IP telephony and description of the technical and business drivers for transitioning to all IP networks
This book will be a valuable guide for professional network engineers, designers and managers, decision makers and project managers overseeing VoIP implementations, market analysts, and consultants. Advanced undergraduate and graduate students undertaking data/voice/multimedia communications courses will also find this book of interest.
Olivier Hersent founded NetCentrex, a leading provider of VoIP infrastructure for service providers, then became CTO of Comverse after the acquisition of NetCentrex. He now manages Actility, provider of IMS based M2M and smartgrid infrastructure and applications.
List Price: $ 90.00
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Categories: VOIP Products Tags: Deploying, Infrastructure, protocols, telephony, VOIP