In my recent tests of Blizz, it isn't clear what the Presenter needs to do to initiate the telephone audio conference. When I simply dial the number dislayed in the Blizz host screen, it never connected - one message said all circuits busy and another call got a busy signal (obviously, not encouraging during a product test). Even if it had conneected, I don't know whether I would have some control over mute (etc) or would be just another voice on the audio call. Please advise. Thanks.
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