Panasonic KX-TG6672B DECT 6.0 Plus Digital Cordless Answering System with 1 Corded and 2 Cordless Handsets: * Power Back-Up Operation (base unit) * Talking Caller ID and Call Block (requires subscription) * Intelligent Eco Mode * 5-number Speed Dial Console (base unit) * Range Boost, Tone Equalizer and Silent Mode * Hands-free speakerphone on base and handset * Up to 4-way conference capability * Includes 1 corded and 2 cordless handsets * Expandable up to 6 handsets