Voice over IP on Wireless Networks

Industry have adopted the Internet Protocol (IP) standard to route data over their corporate networks, this enables them to maintain a single infrastructure, which in turn reduces their maintenance costs. The implementation of Wireless Fidelity (WiFi) networking has allowed users to access the corporate network whilst maintaining mobility. Voice over IP (VoIP) has primarily been used on wired networks, implementing this on a WiFi network would give greater flexibility to the user. Such a system would enable the corporate user to roam and collect calls from the corporate telecoms network. This paper investigates the problems currently encountered on existing wireless networks and analyses the requirements for achieving the QoS to support voice over IP on wireless Networks.