TMC 4-Line corded telephone with built-in voicemail/auto attendant - Compatible with the TMC 4300 - 4 Lines and up to 16 extensions - Caller ID, call waiting caller ID (on all 4 lines) - 50# Caller ID history - Caller ID display dial - 3-Way conferencing - Call timer - 5# Redial - Do not disturb - Toll restriction - Call privacy on/off - Automatic line selection - 28# Memory dial in each phone - 10# Private directory - Memory retained during power loss - Separate volume controls (handset, speakerphone, and headset) - Line reserve - Intercom - Paging - Call transfer - Speakerphone - Telco visual message indicator for all four lines - Backlit large LCD - Three softkeys for easy display-guided programming - Headset jack - Built-in headset amplifier and dedicated headset button - Data/fax jack - Shared directory holds 40 names and numbers - Advanced intercom - Off-hook voice announce - Busy lamp field - Dual color line status indication - Distinctive ringing for each line - Built-in auto attendant and voicemail features: - 8 Selectable greetings - Remote access - Transfer direct to voicemail - Digital message recording (up to 30 minutes total) - Night message greeting - Line specific greetings - Answering system lamp (flashes to indicate new message, steady light indicates answering system is on) - Message auto save - Message grouping - Save as new - Erase - Screen calls - Skip/repeat - Back/forward - Variable speed message playback - Record memo/conversation - Pause - Centrex auto attendant - 2 Year limited manufacturer's warranty - Customer support line: 1-800-TMC-1638 - Product dimensions 9.25"H x 9"W x 2.75"D