Is there a restriction in creating an intercluster trunk between 2 call managers. I'm trying to simulate this in a lab environment where i have one Call manager version 10.5 connecting to a Call Manager 7.1.X to route some calls outside my lab CUCM to another one.
Do intercluster trunk need to match CUCM versions? i'm not really seeing any calls getting through across the trunk, in call manager 7 there seems to be no way to check the uptime of the trunk nor see if it's active. I'm using DNA tests to see if the call gets routed over de trunk and it does.
No, you can have an ICT between different version, hopefully you're not using a SIP trunk, we only recommend that if all clusters are 8.6(2) and above, if you need to trunk with a lower CUCM version, use the old ICT non-GK controlled. Aside from that, the rest of the config is the same, RP, RL, RG, CSS, partitions, etc.
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.