Additional Handsets Included - 4 * Answering System - Digital * Answering System Features - Answer On/Off, Call Back/Edit Call, Detecting of VOX, Erase All Messages, ICM Record, Marker Message, Message Indicator, New Message Indicator, OGM Record/Play/Erase, Playing New/All Message, Remote Operation/Turn On, Repeat/Skip/Erase Message, Stop, Toll * Caller ID Features - Name/Number Display, Talking Caller ID * Caller ID Locations - Handset