DESC: The i5857 is a 5.8 GHz cordless phone system with a number of handy extras, including caller ID/call waiting compatibility and multi-user expandability to eight handsets (one included). The i5857 utilizes the 5.8 GHz frequency and digital spread spectrum technology to provide clear, accurate reception with less interference than traditional 2.4 GHz and 900 MHz phones. Caller ID/call waiting compatible, the i5857 has a 50-number caller ID memory; caller information is display on both the base and handset LCDs. A separate 50-name-and-number phone directory helps you keep track of important contacts. You can select between eight ring tones and 12 musical ringers, while the supplied audio patch cord allows you to record custom ring tones. The full-color handset LCD screen comes with six preset images that you can assign to phone directory entries or set as background wall-paper; the included USB cable and image editor software also allow you to download custom images to your phone.