Port Number Used by LoiLoNote School
LoiLoNote School uses only the following ports
HTTPS: Port 443
When the application connects to our cloud (https://n.loilo.tv/), it uses only HTTPS, hence primarily port 443. For the notification server, HTTPS (443) is also used.
As long as there are no issues like decryption of the SSL/TLS encrypted communication from tablets to servers along the transmission path through port 443, it can be used normally even in the presence of proxies, etc.
Reference