I've got a 3.1(3) system presently built for a full TAPI integration with CM. It's set up in an Exchange 2000 enterprise. Is there a white paper that explains how to shift it back so that it plugs into a separate 5.5 enterprise? Is this easy to do?
since you're going to a seperate network (i.e. your users in the directory are not shared across these systems I assume) your only real option is to do a DiRT back up of your 3.1(3) system, reinstall from scratch pointing it to your Exchange 5.5 server in it's network and do a DiRT restore.
You can get information (including training video) and the latest version of DiRT from here:
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.