Flash (100/300/600 mSec), Hold with Indicator, Redial, Pause, Mute with Indicator, Twelve One-Touch Memory Locations, Ten Two-Touch Memory Locations, Tone/Pulse Switchable, Ringer Volume Control, Handset Volume Control (10dB), Desk/Wall Mountable, 90V Message Waiting, 2.5 mm Headset Jack, Speakerphone, Data Port.