I installed a Slave cabinet and TD-192 to my existing 32 extension Master. The cabinets are both -4's. The new additional 24 extensions on the slave work except that when I press a flex CO button and dial any digit, it displays "restricted" and defaults to the intercom button. I have set the COS to Level 1 for them and the proper settings in #603, 604, 605 and 606 in the programming. Basically, I configured the new extensions identically to the existing Master extensions yet, still restricted when I try to dial out. Don't know where else to look. Any help certainly appreciated. Thanks in advance..