New design desk skype phone, USB2.0, LCD display, hand-free function, high sound quality. Key Features1.USB Interface PnP. No external ... full duplex communication3.With phone base and hook ability4.Built-in keypad for DTMF dialing, rings on an incoming callSpecifications1. ... Physical Connectors One USB Port2.Keypad DTMF keys 0~9, #,*,4 soft defined ...