Best Simulator for CUCM 6.0 +

Hey Team,

I hope this finds each one of you doing well. Happy New Year.

Any thoughts on the best simulator of CUCM? Would like to have a program
where I can practice common admin tasks ...

I also have a 7825 w/ no OS on it, I borrowed this ... so I can load the
real thing ... just hoping that there is something easier / more flexible
...

TIA!!!

-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net