A Comprehensive Review of Voip Technologies and Performance Metrics

Abstract

VoIP has emerged as a core part of today's communication, having left considerable paradigm shift with flexibilities and cost-effectiveness. These have been elaborated upon in this study regarding the major components of VoIP performance, including Quality of Service (QOS), Quality of Experience (QOE), and security. A few of the most important QoS metrics include latency, jitter, and packet loss, ensuring technical performance and robustness of VoIP systems and assuring efficient service. QOE metrics measure the satisfaction of the user and the subjective perception of call quality, bringing tremendous value as sources of information about understanding what end-users experience. The other point of the paper is associated with the growing relevance of security, where vulnerabilities like eavesdropping, DOS attacks and the need for proper encryption and authentication mechanisms have been inducted. Existing approaches measuring these metrics are analyzed, along with recent improvements in performance optimization and the challenges induced by changeable network conditions. The survey suggests better VoIP service quality and security by strongly underlining the fact that future VoIP systems should be integrated with QOS, QOE, and security measures.