Panasonic KX-TDA1176 16-Port Single Line Extension Card is compatible with several Panasonic PBX that includes KX-TDA100, KX-TDA600, KX-TDA200, KX-TDE600 KX-TDE100, KX-TDE 200, Panasonic Phone Systems. KX-TDA1176 card comes with 16 ports that support 16 extensions, it has caller ID