asterisk users - Sep 2004 - Flashing a POTS Line when you are on a call in Asterisk

I have my * configured to use 6 POTS lines in one group.  Currently, to
conference call, we use * and our phones built in features to dial out
on another ZAP channel and bind teh two together in *.  However, the
lines in question all have 3-way calling so theoretically, we shoudl be
able to send a flash command and do a 3 way outside of *.  That would be
very useful since it would only tie up one ZAP channel instead of two.
Can anyone help me find an example of how to do this?  So far I have
found reference to the Flash() command but it is very limited in scope.
I have found reference to this in the lists but so far nothing seems to
be conclusive regarding a solution that actually works.  Any help would
be appreciated.
 
Thanks,
Wiley
 

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