Accessory Handset only - requires the I5871 to operate• High Resolution 65K Color LCD with animated graphical icons• Caller ID/Call Waiting - Stores 100 calls• Picture Caller ID - download jpg’s and assign to phonebook directory paper• Recordable Ringer - easily record sound from MP3, CD, Boom Box, etc.• Share phonebooks between handsets and download directory from Outlook.• Handset speakerphone - enjoy “hands-free” conversations• Intercom, transfer, and conference between handsets• Headset compatible (2.5mm jack)