the MCS 7816 is not listed as a viable OCS presence gateway, although it is listed for up to 500 CUPC users supported. I have a very small office that wants the OCS/Presence gateway (under 50 users). Is the 7825 the minimum hardware 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.