asterisk users - Jun 2008 - asterisk v1.6 queue() continue after answered call

Hi list,

we upgraded to v1.6 and have a problem understanding the queue() behaveour 
of the v1.6 in queues.

we try to set the queue up to not hangup if an agent answeres the call but 
then hangs up again.

we would then like the queue to go on in the dialplan. But the queue does 
not want to go on and hangs up. :-(

we triyed to use the c flag
and the timeoutrestart
both did not work.

How could we set up the queue to go on after a call?

Hope anybody can help.

thank you
Martin