Voistek H20 Feature Headset Telephone Dialpad + REDIAL MUTE W/ NC Binaural Headset (H20CHT800) Ideal for small offices and home-based agents in telephone intensive situations and who wants to use up minimum desk space for a telephone/headset system. Easy set up: Connect the dialpad to your existing standard telephone wall jack. Attach your headset and youre hands free! Simple operation: This is a fully functioning single-line telephone with conveniently arranged controls to help you work smarter. Press the on/off button once to answer an incoming call, and then again to end the call. User-friendly controls: On/off, microphone mute, flash and redial buttons make it easy to dial and receive calls. In-use LED and mute indicators provide excellent call visibility for you and others in the office. Adjustable receive and transmit thumb wheel controls let you manage the precise volume of each call Be more productive: The CHT800 call waiting and call transfer capabilities help you be more productive on a call. An extension jack allows connection to a second phone or modem. Recording jack connects to a recording device for call monitoring purposes. The handy headset hook keeps your desk area neat and organized.