Now a days, the communication device is being a part of the human lifestyles. In every activity, the communication device either cellphones or fixed phone being a primary device to doing a telecomunication. In addition voices communication, data communication via internet can�t be separated from public. In this final project designed a system that combine between voices communication and data communication with the concept of public internet-telephony. In this final project, will be designed a system to identify money by using an artificial neural networks algorithms (ANN) with backpropagasi. This system will be used to authenticate the public internet telephony billing system. System will recognize the contours of money with several sensors that are installed, then the data will be training using ANN backpropagation method and stored as a reference data to identify money With this final project , the peoples will get a public facility to sustain the needs in modern era, both voice and data in the internet. Key words: Artificial neural network, backpropagation, public telephony internet , currency paper.
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