Node:async-new-presentation, Next:async-new-motd, Previous:async-new-user-area, Up:Asynchronous Messages
async-new-presentation  (( conf-no : Conf-No; old-presentation : Text-No; new-presentation : Text-No ));
This message indicates that the presentation of
message is sent to everybody who is allowed to see
the conference had no presentation,
old-presentation will be
0. Likewise, if the presentation of the conference was removed,
new-presentation will be 0.