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1. Introduction. Voice over Internet Protocol (VoIP) is a technology that makes it possible for users to make telephone calls over the internet or intranet networks. The technology does not use the traditional Public Switched Telephone Network (PSTN); instead calls are made over an internet protocol data network.
Introduction With the rapid adoption of Voice over IP (VoIP), many telephony and data network techni- cians, engineers, and designers are now working to become proficient in VoIP.
38 Practical Fundamentals of Voice over Internet Protocol (VOIP) for Engineers and Technicians. Real Time Transport Protocol (RTP) along with its companion protocol RTP Control Protocol (RTCP) allows receivers to compensate for the jitter and desequencing caused by IP networks. RTP and RTCP operate above UDP.
Since the late 90's IP telephony, commonly referred to as Voice over IP (VoIP), has been presented as a revolution on communications enabling the possibility to converge historically separated voice and data networks, reducing costs, and integrating voice, data and video on applications.
VOICE OVER INTERNET PROTOCOL - VOIP : INTRODUCTION. At this point, most people have probably heard of VoIP, and many may have used it, but they may not fully understand the basics of this rapidly expanding technology. This Tech Tip will take a look at some of the basic features, modes of operation, and other background information on one of the ...
It describes VoIP fundamentals and network architecture, then explains key VoIP protocols like SIP, RTP, and their components. The document also compares SIP to H.323, illustrates SIP message types and call flows, and discusses SIP trunking.
Beginners Guide to VOIP. Thinking of moving to a VOIP phone system, either for a new business or upgrading an existing system? This document covers areas to consider, advantages of VOIP over regular phone systems, steps in the process, and how to select a vendor.
