I setup a 6.0 MICS and changes all DN's to start with Ext 200 as the first port up to 271 as the last port. Now when dialing 0 from another station it says invalid number. I would have thought it would have continued going to 221 which isn't the operator but is where 0 used to go. I set the Direct Dial1 to Ext 200 in (System Programming-DirectDial-DirectDial1) and also set DirectDial to a 0 under (System Programming-Access codes). Any one had this problem.