The Vtech DS6151 is an OEM cordless phone system featuring two lines, Caller ID, and a digital answering machine. It includes a 50-number directory, selectable ring tones, volume control, and any key answer functionality. The system offers a speakerphone in both the base and handset, along with a keypad on the base and remote message retrieval. Designed for crystal-clear conversations, it won't interfere with wireless networks and is expandable up to 12 handsets using only one phone jack.