Key Features: Multi-line digital phone with five-line x 24-character display Personal Directory and Call Log Interactive soft keys for quick access to numerous features Fixed feature keys: Hold, Goodbye, Volume Control, "Smart" Mute and Headset w/LED, Options, Message, Directory/Log (includes Redial), Applications, Shift Handsfree with LED Direct-connect headset port Supports up to two snap-in cartridge accessories for the Analog Terminal Adapter (ATA), External Alerter & Recording Interface, and Personal Directory PC Utility. Or add the Full Duplex Handsfree Accessory (with phase 3 M3904 only) or the Computer Telephony Interface Adapter (Meridian 1 only) |