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The advent of wireless communication technology has brought new innovations as well as challenges to telecommunication. Consequently, the use of handheld devices such as mobile handsets, powered by the Global System for Mobile Communication (GSM) networks is on the increase. Unfortunately GSM services provisions are still faced with the challenges of inefficient bandwidth utilization and congestion in the transmission channel. One of the main reasons for this congestion being the toll placed on the network by the need to reload/recharge phone credit in order to enable calls.
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