How do I setup a H323 on my Sonicwall TZ 105 router for a Cisco SX20 Video Conference system?

My company recently bought a Cisco SX20 video conferencing system. I need to know how to set this up in my Sonicwall TZ 105 router? I have enabled the H323 transformations check box but what do I need to put in the Default WAN/DMZ Gatekeeper IP Address box? Would that be my public IP? or Gateway? We bought a seperate IP block from our ISP so the SX20 would not be behind our firewall can the IP be routed to the Cisco SX20?

Also, once configured, how would I test it?

Thanks in advance!
Mauricio RodriguezNetwork AdminAsked:
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gheistCommented:
SX20 (and all tandberg devices)  is very sensitive to H323 manipulations. New network address is right way
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Mauricio RodriguezNetwork AdminAuthor Commented:
gheist - can you clarify what you mean by "network address"?

I have resolved my issue. If I understand gheist correctly, a static ip address is necessary that is not behind a firewall. H323 transformations have to be enabled on the router and I placed the SX20 in the DMZ of my router. On the SX20 you must understand that you can only dial by IP address without a Call Control server using H.323. In the H.323 settings, Call Setup Mode must be configured to Direct and an internal IP assigned. After that calls are made by dialing the public IP address of the the other recipient.

I hope this helps someone as there is lots of technical documentation but little practical setup explanations that don't get bogged down in technical jargon.
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Mauricio RodriguezNetwork AdminAuthor Commented:
I was able to resolve my own issue. I provided some helpful tips to others who may need practical advice on proper setup.
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