MY PROBLEM IS CAN NOT CALL EXT 3000 IP FROM MERIDIAN OPT61.MERIDIAN HAS ALREADY BEEN SET UP TO CALL IP PHONES THROUGH CISCO ROUTER.MY SWITCH WILL NOT LET ME SETUP 3000 EXTINSONS.MY QUESTION IS HOW DO I SETUP 3000 GRP EXTINSONS.I ALSO HAVE CALL FEATURES IMPLEMENTED USING 33 AS CALL PICKUP.