Ooma lets you make free U.S .local and long distance calls over the Internet. Just plug your high-speed Internet connection and normal home phone into ooma, and you’re ready to call anywhere in the. US. And unlike other VOIP systems, there’s no need for a PC or a headset just use your phone like you normally would. With included BT adaptoer answer mobile phone calls on any home phone, use your bluetooth earpiece to talk on your home phone.