I don't believe you can set a pwd.
Since pstn caller cannot access meetme, it is only internal phones that can start a meetme. You can setup P/CSS so only certain phones can access meetme.
I wonder if there is a way to use Forced Authorization Codes with MeetMe. I'm trying to think of a way to do it, but I can't figure out how to use a MeetMe extension as a route pattern where I could set up a code... and yes, I would love to know how to use Unity to accomplish this.
I agree that MeetMe is Notepad and MeetingPlace is Word, but it is fun to try to get around these limitations. ;)
There are a few options, even in CCM 3.3.
Take a look at the thread at:
Let me know if this helps by rating the post.