This is a commercial grade desktop no dial telephone with ringer can only receive calls. Color black. Specifications: ? Works on any analog phone line (PSTN, VOIP) that is FSK or DTMF compatible ? Telephone line powered ? Weight: 3.1 lbs ? Easy to install and program No Dial Desktop Phone Applications: ? Emergency phones ? Medical Alert phones ? Emergency elevators ? Courtesy phones in airports, airlines, hotel lobbies, car rentals, etc.