QoS of VOIP Over Broadband Network

Abstract

The paper discussed the implementation of the use of Voice over Internet Protocol services, which is resulting in the
enormous growth of broadband network. The main objective of this paper is to evaluate the QoS of VOIP for different
broad band networks. Wired, Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access
(WiMAX) and Universal Mobile Telecommunication System (UMTS) networks were implemented in OPNET Modeler The
quality is compared using different QoS parameters such as end-to-end delay, Mean Opion Score (MOS), throughput and
jitter. The VoIP codes used in the measurements of QoS is G.729A with sampling rate of 8 kbps .The results analyzed and
the performance evaluated will give network operators an opportunity to select the codec for better services of VoIP for
customer satisfaction.