IOS is flash0:c2900-universalk9-mz.SPA.152-4.M6.bin
I have another router with same IOS ordered together but acting as a CME with version 9.1. the router on which I enabled SRST how I can know the SRST version ????. If you see the attached logs requested the show call-manager-fallback show 9.1 and On 9.1 3905 are supported
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.