- Blue backlit keypad and display. - Conference an outside call between handsets and lines. - Press any key to answer calls. - Caller ID/Call waiting stores 50 calls. - Selectable ring tones. - VTech supports RoHS initiatives by reducing the use of hazardous substances including lead, mercury and cadmium. - Energy Star Compliant. - 50 name and number phonebook directory. - Hearing Aid Compatible. - Trilingual prompts allow you to choose between English, Spanish or French. - Transfer calls between handsets. - Intercom calling between handsets. - DECT 6.0 digital technology provides the best sound quality, security and range in cordless phones. - Protect yourself from identity theft with digital security. Your call is digitized and encrypted, making it nearly impossible for someone to eavesdrop. - Excellent range, up to 500 feet. - Accessory handset only—requires the DS6151 to operate; no phone jack required - Two line operation allows you to dial and receive calls on two different phone lines with one phone. - Interference free for crystal clear conversations. Won?t interfere with wireless networks and other wireless devices. - Know who?s calling with caller ID/call waiting. Handsets displays the name, number, time and date of incoming calls. - Accessory Handset Only - With the touch of a button, the handset speakerphones makes hands-free conversations easy. - Handset volume control. - Redials the last number called with the touch of a button.