Nuisance Call Block Reduce unwanted calls such as telemarketers You can block any specified number, as well as any head string of 2 to 8 digits matching your specified numbers or “no number is provided” calls. Stylish Design Simple and sophisticated design A simple and flat overall design provides an elegant impression. The Deluxe Transparent Frosted Grid Keypad used on the handset, and the flat buttons arranged vertically on the base unit reduce the number of projecting parts and help the design to blend in smoothly with the living space. Sophisticated button layout on base unit. Uncluttered design for easy cleaning. Do Not Disturb Mode Never disturb your sound sleep despite staying available to your important ones Each handset can be programmed to prevent ringing during specific periods. However, the sound of the special callers by placing them in a contacts group of the phonebook can be turned on. Radiation Free (Eco Mode Plus) Completely eliminate radiation while the phone is on standby mode Eco Mode Plus cuts transmitting power to zero. The base unit stays OFF until a call comes in or a handset is activated.