i work for a Cisco Partner and we have a CUCM version 9.1.2 as a service with monthly charges for one of our customers.
We bought 300 essentials licenses and 150 enhanced licenses as agreed initially with the customer. The CUCM was migrated from a previous configuration which had more licenses than the actual system, so the acquired licenses were not enough. Our customer said they will buy the extra licenses later, so we must wait, we were running the 60 day demo mode.
a few days before the 60 day demo expiration i applied the license file, in order of keep the Unity connection functionally. (i have only one license file including unity and cucm license together).
However the 60 days passed and the customer finally did decide not buy the phones licenses, instead he decided delete some phones, but here is the problem the system is already in violation mode, and phone deletions can't be done.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.