... usb phone,ideal for a present,good for business man on trip,support PC-PC,PC-Phone,etc Cheap pric ... memeory, can read/write phonebook free and auto run on PC without install any driver!Support most of voip ... protocal ,etc.. Easy operation and widely used for business man, travel man,etc.. Unique Functions:* With SPI Flash memory inside, ... Ideal Present: Small USB VOIP Phone, auto-run on PC without driver