Networking
The VoIPcube Client needs to make several connections to the back-end API. We have noticed that for some customers, the networking setup does not allow these addresses to be reached.
Firewall
VoIPcube needs to be able to reach the REST API and maintain a WebSocket connection. In order for that to be allowed the following domains need to be whitelisted within the customer network:
api.voipcube.nl
HTTPS
443
ws.voipcube.nl
WSS
443
SSL/TLS Interception
Some network security solutions nowadays perform SSL/TLS Interception to inspect the content of the HTTPS requests on their network. This has the "unfortunate" side-effect that it generates a self-signed certificate on the fly, which is rejected by the VoIPcube API Gateways for security reasons.
When an SSL/TLS Interception solution in present on the network, it will need to whitelist the VoIPcube domains api.voipcube.nl and ws.voipcube.nl as well.
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