I'm using a network that has a firewall on it. Can I still use LiveOn ? | Troubleshooting | Web Conferencing System - LiveOn - JAPAN MEDIA SYSTEMS CORP.

In LiveOn communication, ports TPC 22000 to 22007 are used, but in an environment where these ports cannot be used, the connection mode is automatically switched and communication with the server is via tunneling connection from port TCP 443 (SSL).
If communication is not available via port TCP 443 (SSL), then port TCP 80 (HTTP) is used. This means that, as long as the environment supports connection to the Internet, in almost all cases you can use LiveOn without making any network environment changes, such as firewalls, etc.