DESC: Panasonic KX-TS4200B 4-Line Integrated Telephone is a corded phone solution for offices and homes seeking out a high-quality, durable phone system that allows up to 16 (compatible) extensions for call-transfer, conference, and paging purposes. They can be used on a desk or may be wall-mounted. Each telephone extension may be connected up to 4 telephone lines using two ordinary RJ-14 2-Line modular phone jacks. No fancy PBX or Key system is required. If a non-system phone is connected to the system phone (KX-TS4100/KX-TS4200/KX-TS4300), the line indicators of this unit will not function for that telephone. After connecting the telephone line cords to two-line telephone jacks, you can connect a communication device (computer, modem, fax, etc.) through this unit using the LINE2 or LINE4 jacks on the phone's base. You can store up to 32 names and phone numbers in the speed dial buttons. (16 names and numbers in upper memory locations, 16 names and numbers in lower memory locations).