Netmeeting plugin and NAT

I see that with the Netmeeting plugin, when I request a Netmeeting
call of someone, his computer opens Netmeeting and makes the call back
to me.  This might be ok in some cases but the problem is when I am
behind a NAT router.  Using Netmeeting alone, I can make outgoing calls
but the NAT router can't handle incoming Netmeeting calls.  So if I
behind a NAT router and use Exodus to request a Netmeeting call of
somone on the outside, the outside person's Netmeeting is going to
try to connect to my internal IP (192.168.0.195) address which won't
work.

AOL Instant Messenger dealt with this issue by offering an option
for alternate IP.  I don't know how that worked, but when checked,
it would allow me to voice chat with someone on the outside.  The
Netmeeting plugin needs a configurable option like this or at least
the option to use a hard coded address so I could use my noip.org
address.  Is there any chance of getting this?

Damon Register