Deleting Unity Connection Locales

Unfortunately Unity Connection has suffered a number of bugs relating to locales, including:

• Certain 8.5 versions of the UK English locale breaking the ability to leave voicemail messages
• Some versions of 8.5 & 8.6 unable to have upgrades installed if a non-US English locale is installed

The solution to either of these problems is to remove the locale which has to be done via the CLI.
First check which locale is installed use show cuc locales:

admin:show cuc locales

Installed Locale Package    Locale
--------------------------  ------
uc-locale-en_GB-8.6.2.1-12  en-GB

Next stop the Connection Conversation Manager & Connection Mixer services via the Cisco Unity Connection Serviceability GUI. Then delete the locale with delete cuc locale:

admin:delete cuc locale en-GB

en-GB uninstalled

You can then install whatever updated locale, upgrade patch, etc. is required to resolve the locale issue.