What are the network requirements for Sphere?

Sphere only uses the 443 port (Standard HTTPS secure web traffic and WSS secure WebSocket traffic).
The domains sphere.ctouch.eu and ctouchcloudapi.azurewebsites.net are used for all our Sphere services. So, if applicable, these domain should be whitelisted. This domain is hosted by Microsoft Azure Cloud services and this server is located in Germany (EU).