DVX-8020 ///8 port FXO module for DVX-3000/8000/DVX-9000 (including one time license activation fees)
8 port FXO module for DVX-3000/8000/DVX-9000 (including one time license activation fees)
8 port FXO module for DVX-3000/8000/DVX-9000 (including one time license activation fees)