Butterfly should implement Conferences on text channels to allow to invite more participants to chats. See http://bugs.freedesktop.org/show_bug.cgi?id=24906 Note that Empathy master implements the current DRAFT.
As an additional note, telepathy-butterfly IS able to accept and work with multi-person MSN conversations as of 0.5.4-1.
Creating a conference, though, is still broken in 0.5.4-1
Thanks for reporting this bug, it has been fixed in bug #27014 *** This bug has been marked as a duplicate of bug 27014 ***
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