External Tandberg VC Calls through Cisco router

Hey,
I've got a Tandberg 6000MXP on the inside of my network, this is NAT'ed out on the internet and all ports are opened for initial testing purposes using this command:
permit ip any host 232.232.232.232.  (IP has been changed)

If i get a call in from a external system i get connected and the external guest can see picture from our VC unit, but we cannot see the external guest.
Are there any settings i can check? Or anything else i need to do on the router side?
SkrotpelsAsked:
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foobar_666ukCommented:
A few things to check....

- Have you configured the Tandberg MXP so that it is aware it is behind a NAT? (Go to Control Panel --> Administrator Settings --> Network --> LAN Settings --> H323 Settings --> Advanced H323 Settings) NAT should be 'On' and you should configure the fully routable address in this field.

- What CISCO Router are you using? Some have H323 Intelligent Packet Inspection (inspect/fixup) on them, and this can often interefere with the H323 traffic. Please disable any H323 inspection on the router.

I would check these couple of things first, and come back to me with your findings. Thanks!
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foobar_666ukCommented:
Not had a response, did any of my suggestions work?
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SkrotpelsAuthor Commented:
Didnt' get that to work, talked to Cisco who told me to get a expressway to get through firewall ok. That was apparently the only sollution.
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foobar_666ukCommented:
Skrotpels - The Tandberg VCS Expressway is the reccomended solution if you have lots of Endpoints that need to traverse a firewall. But if you only have the one endpoint you can setup NAT or NAPT and the Endpoint will work just as good.

The Tandberg also uses quite a few ports that you need to ensure are opened and forwarded by your firewall.

I have managed to get this working via both PIX and ASA without any problems.

A sample config guide of the older PIX can be found here:http://www.firstconnections.co.uk/support/viewkb.asp?id=26

Hope this helps!
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foobar_666ukCommented:
Also just looking back at your initial questions - I can see you have opened the ports on the firewall via that access-list but have you setup the NAT translation also?

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SkrotpelsAuthor Commented:
hey Foobar, sorry for the late reply. I will test this next week and give you feedback on it.

thanks
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SkrotpelsAuthor Commented:
Our sollution was to go to the VCS and purchase a few Tandberg MOVI clients. I've tested it for a few weeks and its absolutely fantastic! Great for one to one meetings or one to multiple. Its even got support for presentation of documents. I recommend you have a look at it if you dont want to buy a full VC setup.
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