Atandt Tl88102 Dect 6.0 2-Line Expandable Cordless Phone, 1, Answering System. Two-line answering system with Caller ID and Call Waiting features an advanced antenna design to offer the best in long-range coverage. Noise-filtering technology allows you to take calls virtually anywhere without sacrificing sound quality. Handset speakerphone leaves your hands free to do things and lets more people in on the conversation. Backlit LCD displays the name, number, time and date of up to 50 incoming calls. High-contrast black text on a white background provides an easy-to-read screen to view incoming Caller ID or review call history. Expandable design connects up to 12 additional handsets (sold separately) using just one jack. DECT 6.0 Technology 2-Line Operation Dual Caller ID/Call Waiting- stores 50 calls Unsurpassed Range Digital Answering System ?includes a mailbox for each line Handset and Base Speakerphones DSL Subscribers may need to us a DSL Filter For optimal performance batteries should be charged for 16 hours prior to use