Reading AMM's documentation, it looks like Octel integration is suppported. I am not sure about other options such as PIMG, VPIM etc..You could network Unity with AMM using Cisco Unity Bridge (which is a separate product).
Note that you dont need to network voicemail systems together, unless you want to send messages from one system to another. Not sure if that is exactly what you are looking for.
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.