• CO line module allows for the addition of four telephone lines to an existing phone system
• 4-CO Line Module works with the 8-line, 16-extension Panasonic Phone System (sold separately)

If you have the 8-line, 16-extension Panasonic Phone System (sold separately), you can add up to four CO lines to your system when you're ready to expand. The 4 CO Line Module adds four additional incoming telephone company lines to work seamlessly with your existing system.

4 CO Line Module

CO & Extension Cards	Panasonic Phone Systems	Intercoms & Phones