asterisk users - Oct 2010 - don't leave meetme conf if key pressed

Hi @ all,
what is the best way to to use features like MeetmeCount without leaving the
conference.
I use Meetme(,X) and MEETME_EXIT_CONTEXT=context, but the problem is that the
caller leave the Conference :(
Is it possible to press a key, without this obstacle?
Thanx for your answers

Daniel Knoll