Optimizing Branch Telephone Networks for Campus VoIP with Mobile Clients

Abstract

During working hours, employees on campus are not always in their room because of other activities in other rooms both in one building and in different buildings. In this study, the development of a branch telephone communication network or private branch exchange (PBX) uses voice over internet protocol (VoIP) technology with a mobile-based client device and utilizes the internet as a media. For system design, network development life cycle (NDLC) method is used where VoIP communication network is monitored with paessler router traffic grapher (PRTG) software to see quality of service (QoS) values with packet loss, delay, and jitter parameters. The results of the monitoring of each parameter are of perfect average which can be seen from the amount of packet loss value of 0%; delay below 150 msec for sending data packets from the transmitter to the receiver; and jitter in a proper category with a time below 75 msec. However, for better development, the installation and configuration of servers that have been created virtually can be implemented on the actual server system; IP usage which is devoted to VoIP communication networks; bandwidth management to provide a separate traffic line for the VoIP communication network that is created.