AT&T 1040 Corded 4-Line Expandable Business Phone System with Caller ID & Speakerphone - Ideal for Offices, Call Centers & Small Businesses

Build a custom phone system that expands to up to 16 linked base stations. 4-Line LCD display Up to 16 base stations One Touch Presets: 32 Four-line capability with Automatic Line Selection automatically connects users to ringing or open lines. Page, intercom and transfer functions offer easy communication between phones on the system. 200 station memory with loss protection feature keeps saved numbers safe. Compatible with most headsets (via 2.5 mm jack) and hearing aids.