NetMeeting uses the following ports
Ports
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389 - TCP
522 - TCP
1503 - TCP
1720- TCP
1731 - TCP
Dynamic - TCP
Dynamic - UDP
To establish outbound NetMeeting connections through a firewall, the firewall must be configured to do the following:
Pass through primary TCP connections on ports 522, 389, 1503, 1720 and 1731.
Pass through secondary UDP connections on dynamically assigned ports (1024-65535).
Linkage