I have a problem where when I setup a user for single inbox to Exchange 2007, the initial test of that inbox fails with a timeout. The next time I press the test button, it works. I've noticed that users will not receive voicemail in their email until I have a clean test. This is not a problem when I add users one at a time, I just run the test twice and the second one works. But I am getting ready to do a bulk change to update a large group of users to have single inbox. Any ideas on why I'm experiencing this and how to do my bulk update and have it work?
I have this problem too.