Single Line 2500 Classic Analog Desk Phone with Volume Control, 2 Ports, Handset and Line Cord Included , Black - Works on PBX, 1 Year Protection Single Line Analog Classic Phone Ash/Beige Color, similar to CortelCo & AT&T Traditional Bell Sound Ringer, 1 Year Performance Warranty Volume Control, Hearing-Aid Handset; great for hospitals, restaurants, retail stores, schools Two Ports; Data and Voice port Metal Base, Works on PBX System, includes 9Ft handset Cord and 7Ft Line Cord