Remember how on iChat you could block certain people or just allow certain people? Is there a way to do that on iMessage?

  • Are you asking about iMessage as a service for iOS and OS X, or the Messages app on OS X? – Kevin Chen Jan 9 '13 at 1:31
  • I edited this to have one question. Feel free to ask the second question as a new stand-alone query. – bmike Sep 19 '13 at 0:49

Why not try CUMeeting video conferencing software which allows multiple people in the same conference.

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