At this point I would back up the system programming, default the ksu, reprogram the hunt group and basics by hand and test. If it works, that probably means you have something corrupt in your database. If it doesn't work then I would call 1877vertical. I'm still leaning toward a numbering plan conflict though. Is it possible that in flash 52 that the fixed ports aren't matching the flex? Sorry, that's all I got.

"I thought I was wrong once, but I was mistaken"