This was tested on 1.0.7-rc2
I created a project site (BBB demo for Walsh), added Meetings, created a meeting, invited sean.
The BBB notification email is below. After I started the meeting, sean clicked on the link which is supposed to take him to the meeting. he logged into Sakai and went to the correct project site and meetings tool, but the meeting which was in progress for me was listed as unavailable to him. See screen cap "from email link".
If he clicked into the project site, navigated to meetings and clicked on the meeting, it showed as available. See screen cap "same session directly"
So it looks like email notification links don't work but you have to log into Sakai and navigate to the meeting.