| I have done several including our own system during the 4.0 Beta trials last summer. It is easy. Upgrade itself takes about an hour. Add another to backup before and prep, plus a few clean up programming afterwards. There is a known issue with CDR records exceeding 200MB which will fail the upgrade in the beginning. There are instructions for clearing the records. PM me if you need the instructions. Otherwise, all is easy.
One final word of caution, make sure you don't have the capacity issue if it is an older unit. We did and I did not replace the MSC because we were not experiencing any problems - until I tried to upgrade. once the MSC was replaced, no troubles.
My opinion is it is well worth the upgrade costs and one of the easiest BCM upgrades to date. |