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.
AltiGen iFusion SmartStation AP300 Black is an unusual gadget for Apple iPhone. It is a landline phone with the ability to connect your device to iPhone. The device has a wide range of functions, including the ability to act as a Bluetooth-Speaker for iPhone 3G, 3GS, 4 and 4S.