H323 Firewall Rules

For the best results on video calls using the H323 protocol, the following ports should be opened on the Firewall:

Gatekeeper Discovery (RAS) Port 1719 UDP
Q.931 call Setup Port 1720 TCP
 H.245(Static) Port Range 5555-6555 TCP
H.245(Dynamic) Port Range 11000-20999 TCP
Video* Port Range 2326-2485 UDP
Audio* Port Range 2326-2485 UDP
Data/FECC* Port Range 2326-2485 UDP

         *Configurable by "RTP Ports Range Start" and "RTP Ports Range Stop"

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