Remote Service applications demand some additional requirements, especially on the network side. To successfully establish a connection between two clients, e.g. the Remote Service Portal, running in the browser on a Desktop machine and the Remote Service Client running on a Smart Glass, they must either reside in the same network, or a STUN-/TURN-server must be used.
The minimum requirements for using a remote service application are:
- Simplifier server and clients must either be in the same physical network segment or be connected via a virtual private network (VPN). If this requirement can’t be fulfilled, a STUN-/TURN server can be used as an intermediate communication partner.
- If you want to use a STUN-/TURN server, the following TCP and UDP ports must be open: 3478, 3479, 5349, 5350.
- Fixed domain for the server and valid certificates for this domain. Remote Service requires these certificates because it runs exclusively over HTTPS for security reasons.
- If you plan to use remote service over a cellular network, be sure that your provider allows these services in your contract. In case of Deutsche Telekom, this means that option “Voice over IP” must be enabled.