Is there someone out there that can provide some insight into the inner workings of the License Count Utility Tool? I'm trying to figure out some of the logic that the tool is using to make it's recommendations and analysis for CUWL, UCL, etc.
Well you may be finding a couple of problems with the way it counts extension mobility users as separate users rather than combining them with the Enhanced user licenses, the other problem is that if you haven't associated a users multiple devices to the single user then this shows as several user licenses rather than just a single user with multiple devices. Because of this you look a a site with CUWL you'll often see it says you need many more users than you have but of a lower license type.
Other problems include the way it counts public space phones and the way it adds up unused DLU's in CUWL since it expects to see the full number of DLUs but in the last year or so Cisco have issued a reduced number of DLU's as default so you dont have enough DLU's to make up full CUWL licenses.
Oh and to finish it all of Cisco have now totally changed the licensing so the UCT is little more than useless until these issues are fixed and it is updated for the new (September version) of 9.0 licensing. I have given up with it until there is a new 9.1 version.
Do you have lots of DLU's left over, it is probably that the UCT onl;y sees the configured phones and if the users doesn't have multi devices etc that require CUWL std then it sees them as needing only the enh license. You should be able to use the tool to make up the 685 CUWL licenses with the spare DLU's (although see above re the DLU issue and CUWL).
this is correct - both the User Count Tool and the ELM allow the user to update the recommendations made by the tool. so, in the case where you know your customer has purchased CUWL, you can adjust the recommendations in the License Planning Worksheet (UCT) on the pre-9.0 system, or in the License Migration Wizard in the ELM on your 9.0 system.