AT&T 945 4-Line Speakerphone with Intercom (Non-Caller ID) (Titanium Blue/Refurbished)Refurbished! Includes new overlay, designation, a new handset cord, a new line cord.. The ATT945 replaces the ATT944. Key Features: Four Line Speakerphone with Intercom Four line Expandable Corded Telephone ATT945 is Compatible with the ATT974, ATT984, and the older models, ATT944 955 964 Speakerphone 1 to 4 Line Capability Intercom Page Expandable Up to 16 stations (the maximum number of stations is 12 if one of the ATT944, 955, or 964 is attached to