Corded Speaker Phone The AT&T 944 4-line corded speaker phone had excellent features. This phone can be used as a single unit or at commercial level in office as a telephone system. The 944 made for the needs of a growing business by supporting 11 units and accommodating up to 4 telephone lines. This intercom, calls transfer, three-way conferencing/paging, 24 speed-dial number capacity, and do not disturb function deliver hassle free communication. The 944 is also headset compatible. 944 Features: Corded Phone 4-Line Operation Expandable Up To 12 Intercom Stations Wall Mountable Speakerphone LCD Display 24 Station Phone Directory / Dialer 3-Way Conferencing Intercom / Paging / Call Transfer Data Port Allows the Connection of Fax Machines or Modems Tone / Pulse Dialing Auto Redial Hold Mute Flash Privacy Mode Do Not Disturb Headset Jack