I allready had installed some VCS-C VCS-E Installations an they are working fine.
So now this is the first VCS-E Starterpackinstallation.
It is located in the DMZ there it has a public IP adress.
The DNS Entries are working.
In my LAN i have two endpoints registered over SIP to the VCS E in the DMZ.
But it is not possible to call from one to the other endpoint or calling someone located in the internet.
I have opend the firewall Ports from the VCSE Starterpack DEPLOYMENT GUIDE:
If the Cisco VCS is placed in a DMZ, to enable SIP calls to be received the following IP ports must be open to the Cisco VCS through the firewall:
5060 (if basic SIP connection is required)
5061 (for SIP over TLS)
50000 to 52399 (for media)
If the Cisco VCS Expressway Starter Pack services Movi users that are behind a firewall, the Cisco VCS must have a public IP address – the local (DMZ) firewall must pass the specific public IP address traffic to the Cisco VCS.
I dont have the Dual Network interface option
So do i need to open some more Ports on the Firewall or do I really need the dual network interface for this ???
So if firewall doesn't allow VCS to send back media (and ACK for invite) to port that Endpoint transmits to VCS, then call may fail.
Again to diagnose this issue further we would need to collect a diagnostics log from your VCS Expressway Starter Pack (“debug” level logging on network log from diagnostic logging page under maintenance).
Please note that log from Endpoint and VCS will contain private information (especially device on public network), I'd suggest to open case with TAC for further investigation, if necessary (please careful with posting any logs on this community site).
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