X16 Plus 8-Phone Expansion

This expansion card adds (8) digital phone ports to the X16 Plus system server for XD10 phones.  (1) card may be added to each X16 Plus system server.  The X16 system server XD10 phone capacity by default is (8) digital phone ports. With this card installed in the X16 Plus server digital phone port capacity increases to the system maximum of (16) XD10 digital phone ports for XD10 phones.