Note: Sometimes, the zero and minimum duration calls to 911 do not show up in the CDR database if the calls are hung up quickly (as if 911 was dialed mistakenly). This issue can happen when the CDR parameter called Log calls with zero duration is set to False. Unless this parameter is enabled, the server does not log calls with zero duration in the CDR database. This includes calls that are never connected. In this situation, go to the CallManager Service Parameters and make sure that the Log calls with zero duration flag is set to True.
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.