Upgrading Server Edition 8.1(43) to R9.1.3

[PhoneMan777]

Hey guys, I need to upgrade an original server edition running at the original R8.1 GA software. The documentation appears to indicate I can do an upgrade all the way from the old 8.1 version straight to R9.1.3 if I am looking at it correctly. I assume the IP500V2 units would need to be stepped up to R9 or a newer version of 8.1 first? Would you guys recommend upgrading the server edition to a newer version or 8.1 or 9 before trying to go up to R9.1.3? I saw some posts on here that there can be issues upgrading so I am wondering would it be safe to try an upgrade or should I just plan to do a clean wipe and reload and then pray that my configs will go back on the new R9.1 server edition fine? I have upgraded newer version without issues but I haven't had to upgrade 8.1 to 9.1 yet.

 

[jhengel]

I would avoid R9.1 all together and move to R9 if there isn't anything you have to have from R9.1. We have seen nothing but issues lately with this release.

 

[PhoneMan777]

Thanks jhengel. My main issues are hunt groups not failing over, user rights not failing over, time stamp is off in one-x call log, and when voicemail fails over, it does play any of the AA prompts. It just goes to a generic voicemail prompt.
Do any of you guys know if most of these things are addressed in the latest R8.1 SP11? If I can fix most of my issues in 8.1 then I will not need to go up to 9.1 for now.