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Use of delay distributions from emulated network environment for video VoIP services optimization

Nowadays the use of Internet protocol (IP) has transformed the delivery of content and services over networks. The perspective of low costs communications determined a very fast development of Voice over Internet Protocol (VoIP) technologies. Along with voice, VoIP communications channels can transport video streams also. This type of VoIP communications, also known as videoconferencing, demands a very high level of quality of services (QoS) assurance for network resources. The present paper is evaluating the effect of network impairments, like delay and jitter, from a network emulation environment [1], over the VoIP communications, focusing on the IP video calls or videoconferencing communication.