Panasonic KX-TDA0470 IP-EXT16 Channel IP VOIP Extension Card KX-TDA/TDE100-600
Each KX-TDA0470 card requires one free slot and supports up to 16 KX-NT Series IP extensions. A maximum of 4 cards can be installed in the KX-TDA100 and 8 in the KX-TDA200. The KX-TDA0470 works with the Panasonic KX-TDA100 / 200 / 600 and Panasonic KX-TDE100 / 200 / 600 systems.