Performance Analysis of VoIP and Voice over MPLS Networks

The emerging demands of multimedia communications in Internet or intranet forces the Internet service providers to provide predictable or even guaranteed Quality of Service (QoS). The major critical issue for network researchers and service providers is how to provide high quality of communication services with limited bandwidth capacity. This study addresses various issues related to Voice over IP (VoIP) and voice over MPLS networks with IP QoS techniques, and provides a performance comparison. The simulation results reported identify the pros and cons of the two networks and find the best suitable service to provide guaranteed QoS for voice transmission.