This thesis presents a novel in band bandwidth estimation tool for multimedia traffic. Multimedia traffic is reshaped for probing the channel without introducing out of band bandwidth estimation traffic. Based on packet dispersion, this scheme provides several advantages over current self induced congestion techniques to explore available bandwidth. Multimedia packets are sent following a particular pattern at regular intervals to explore capacity of the network. After receiving data packets a correlation analysis between received data packets and expected probing patterns is performed. Only multimedia application packets are employed in estimating the bandwidth. Hence, no additional probing traffic is injected into network avoiding latency and interruption of application. The bandwidth estimation technique proposed in this study achieves bandwidth estimation with an error margin of 2%.