It seems the NAM is a lower release than it should be for that MICS. Check for compatability issues. It has been a while but after upgrading a MICS to 7 I had problems with DID calls ending up in the AA instead of the person's VM. There is a "redirect to vm" patch that I had to load in the NAM to resolve this. The NAM was also a 4.x. I have this file if needed.