If all your devices are correctly registered to the VCS, then they should not be dialing each other via IP addresses - you should use the address you register them to the VCS with (ie, the H.323 ID or SIP URI). This should solve your dialing NAT address issues.
The Polycom specific <IP>##1234 format is peculiar to Polycoms. In the real world, H.323 Annex O URIs are used, so that Polycom example would become 1234@IPAddress.
EDIT: Apologies for dragging up an old thread - i didn't notice the sort order on the forums had changes and was showing ancient threads again.
Wayne
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Wayne
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