that sounds like a good plan, regarding the SUB it really depends on if you have the install media of if you're going to use the files from CCO, in CCO we only have upgrade from 6.0(1a) to 6.1.1 so that would require to upgrade both servers at a time.
if you have the original install media from 6.1.1 then you can upgrade the PUB and do a fresh install of the SUB
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...