-Endpoints(Tandberg/Cisco)externalto my networknot registered inanyVCS
-VCS-Expressway (8.1.1) with public IP address
- Registered Internal Endpointsin theVCScontrol.
-Domainspublished ininternal and externalDNS.
My problemis that when I mark IDROOMMCU@domainfrom an externalendpoint (not registered in VCS Expressway)(H323call)the call is establishedbutnoaudioorvideoendpointis received in the endpoint.However theMCUreceivesaudio and video from de endpoint.
If insteadof callinga roomoftheMCU, icall to an endpointregistered withVCSControl, the call isstableandsmoothmedia streaming(audioand video)is correct.
Now, ifthe externalendpointis registeredin theVCSExpresswayand callto the sameMCU room as before,the call issetperfectlywith audioandvideoin both directions.
The protocol which is used is H.323 (for SIP, i need a register server).
I've tested the calls with Tandberg endpoints (software updated to 9.3.1) and some softphones (Polycom Real Presence, Ekiga) in differents networks without firewall (the endpoint is directly connected to the router without NAT or filtered ports)
My internal architecture is this:
Internet - VCS Expressway - VCS Control - MCU/Endpoint. (No firewalls between all elements)
And, if the problem is a firewall. Why does the call work from internet to and endpoint and not to the MCU?
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