Analysis of VoIP Softphone Performance between Wired and Wireless in Campus Network Environment

MARCH 16, 2010


kolej uninersiti islam antarabangsa selangor


This study focuses on softphone evaluation performance for VoIP conversation via wired and wireless technology in campus environment. We have setup a real VoIP network environment in University of Kuala Lumpur (UniKL), Malaysia. Two softphones such as 3CX phone and Mizuphone will undergo evaluation process to define which softphone able to provide better VoIP quality. Implementation of VoIP in campus environment is not considered any QoS features. In our experiments, we use mean opinion score (MOS) to evaluate and measure the performance of VoIP in campus environment. MOS is a human perception based on qualitative technique. We select several students in UniKL to test VoIP performance. We have conducted several experiments such as: i) test the VoIP over medium transmission; and ii) select different codecs: GSM, G.726, iLBC and Speex. The result shows that 3CX phone able to provide a good quality of VoIP over wired and wireless transmission. In addition, using different codecs, it shows a good respondent result on quality of VoIP using 3CX phone. Therefore, we will use 3CX softphone as our medium communication via VoIP technology.