When rdp to the Unity server, and access SA, bring up a subscriber, Greetings and play the greeting to the phone, I hear the voice recording.
Try the same process from a workstation and access the Unity server SA, Greetings, and play the greeting, the phone rings, I pick up the phone and dead silence, with the play button clearly showing that the greeting is being played.
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.