I'm having a strange issue with my CUCM 6.1 cluster. We have 3 x SIP trunks going to another cluster (ie. one trunk to each node). Whenever I point a route pattern down a single trunk, it works fine (on all of the trunks) but as soon as I put one or all of the trunks into a route group then route list and point the route pattern down the new route list, it doesn't work.
Note that it was working earlier - we have recently added a new subscriber.
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.