Traffic behavior and performance in VOIP

Abstract

Voice over Internet protocol - VoIP, or IP telephony is a technology by which the routing of voice communications are done through Internet or any other Internet Protocol (IP) based networks. Here the voice data is transmitted over a general purpose packet-switched network instead of dedicated traditional circuit-switched voice transmission lines. Voice Over Internet Protocol (VoIP) is a telephony technology used to transmit ordinary telephone calls over the Internet. VoIP takes analogue audio signals and turns them into digital signals (packets) that are transmitted using Internet Protocol (IP) networks. VoIP’s advantages include low cost, flexibility, and mobility. Conversely, VoIP’s disadvantages include sound quality such as latency (delay), jitter, and packet loss. To be more precise the main goal of my thesis was to study the traffic behavior of VoIP. To find out the factors that effect on the performance of VoIP and to mitigate that problems in the network was the main goal here