We have been experiencing many issues with Aspect UIP for a year now. We are currently running on 6.5.1 while on Code Mod 3. We attempted to go live on the system in Jan 09, and the system crashed. We placed Code Mod 3 on at that time, per Aspect's recommendation, and attempted to go live again in May 09. System crashed again after 20 days. We have now placed many "hot fixes" on the system from Jan to present, and went live once again this month (Oct 09). This time we experienced many Lyricall transfer issues, and the driver crashed. We are back off the UIP system currently. Aspect has provided us options of putting more hotfixes onto our current code mod 3, going live again, and then move to Code Mod 5 in a few weeks. There was also an option of placing Code Mod 4 on the system. Is anyone out there currently on Code Mod 4 or looking to move to Code Mod 5 shortly? Just want to get good feedback for better decision making with our next steps.