asterisk users - Dec 2004 - Asterisk OH323 acting as a gatekeeper

Hi,
I am testing asterisk in several situations, I still can not
understand why we have to deal with two different h323 channels...
Here is the problem, I have a cisco 3700 who sends h323 calls to asterisk.
then I process the call upon several users parameters, and send it to
another cisco gateway.
All the transactions are made in h323.
I first tried with h323 channel, and had no audio... I guess that is
because g729 is not g729a.
So I tried with oh323, and I finally got audio!
Unfortunately the oh323 acts like a gatekeeper... and trys  to create
the direct call between the two ciscos... therefore, once the
communication is accomplish it hangs up.
I had to make available both g729a anf g729 in my oh323.conf, since
the first cisco appears to use that codec.
I tried all the combinations successfully, since cisco->asterisk->sip
works ok and asterisk->cisco2 works too.
I am sure this works since asterisk is transcoding can not make the
rtp to flow directly between the two clients.
Does somebody knows how to deal with this?

Thanks,
Alito

Hello.

This is my situation:
                  h323/g729             NAT (Asterisk as DMZ)            
   h323/g729
Asterisk   ------------------- ////////////////////////////////////  
--------------------------- H323 Gateway -----------> PSTN

The problem is that everything works great, except audio (great deal :-) 
), i.e. callee can hear me but I dont hear nothing. The H323 gateway is 
sending UDP traffic to 192.168.1.175, the internal address of my 
Asterisk box. What's the solution for this? I read something about H323 
proxy, but not sure about it.

Please, any help is very appreciated. Im sure this must a very common 
situation, isn';t it... I cant find anything concrete about it though.

Thanks in advance to you all, your support is being great!

RODOLFO