... console for call monitoring and click to transferIncoming calls DID, caller ID, call rejection, do not disturb, CRBT, call waiting, forking ... and delay)Dial-in System Authentication with PINAccess Authentication with caller’s phone numberExtension Feature Blind transfer, Consultation transfer, ... Auto MDI/MDIXVoice: 1 phone and 1 lineUSB: 2 USB hosts for 3G dongle or storageControl button Reset, WiFi ...