asterisk users - Dec 2004 - Is this possible?

hi;

i have a conference room setup on the asterisk server. And say that one 
of the sip peers (say A) wants to dial outbound to a PSTN destination 
(say B).  Can i have A join the conference room and some how at the same 
time ask B to join the conference room? 

I think this feature is very important, because if we have few people in 
a conference room, it would be very nice to invite people to join the 
conference without the need of putting everybody on hold.

Any feedback is appreciated.

thanks
moe smadi

I'd like to setup my Asterisk box to receive a call on the incoming POTS
line and immediately redirect back out to connect to another phone number.
Im thinking I could use either the threeway feature of that POTS line, or a
second POTS connected to a different FXO card. Does ANYONE know if this is
possible and if so, how it's accomplished?

Paul