Link2Cell Bluetooth Enabled Phone with Answering Machine 3 Cordless Handsets. Sync smartphone to home phone, no landline required. Link up to two smartphones to make and receive cell calls with Link2Cell handsets. Never miss a text with talking ID alerts from Link2Cell handsets. Dial easily with large buttons on handsets and base. Hear callers more clearly with Amplified Handset Volume. Optional Accessory Key Detector to work with Cordless Phones - KX-TGA20B.