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H.323 Ports
Static
When selecting static H.323 ports for TCP connections the ports 5555 to 5574
will be used for Q.931 and H.245 respectively.
Dynamic
The system will allocate which ports to use when opening a TCP connection.
The reason for doing this is to avoid using the same ports for subsequent calls
as some firewall consider this as a sign of attack.
When selecting Dynamic, the H.323 ports used are from 11000 to 65535. Once
65535 is reached they restart again at 11000.