It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
Asiasoft Software Technology Co.,Ltd (Asiasoft) was founded at the beginning of 2000, whose main business focuses in China. It owns multi-stock shared firms in Beijing, Shenyang and Hongkong.
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