I would like to understand the possible limitation for 100% encryption of IP Phones registered in CUCM 8/9.
I heard that 100% encryption will bring down the size of the cluster. For eg: If we have 30000 IP Phones without encryption, after 100% encryption we can only have 25000 IP Phones registered to the CUCM cluster.
I would like to understand the possible reason for the above.
Licensing and bandwidth is not the reason I believe.
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.