The UltraSwitch 100 is the perfect office telephone line manager. Plug the telephone line to be shared into the UltraSwitch 100 and connect fax machine, modem, telephone answering device and phone to the unit. The Ultraswitch will automatically answer incoming calls, monitors for CNG tone and transfers the line to the proper device. The Ultraswitch will fully exclude all devices not in used, and send them a busy signal. Simple programming through a touch tone phone will personalize the parameter including recognition of distinctive ringing “ident-a-call” service. The Ultraswitch 100 also features an active DTMF receiver, allowing the caller to directly access one of the 4 devices (computer modem or remote maintenance) installed.