The HHU network offers its members various options for using digital services from any location.
It is possible to issue server certificates to institutions of the Heinrich Heine University Düsseldorf for servers operated decentrally there.
HHU uses a Voice over IP (VoIP) system from unify for telephony. The telephones are operated via the data network and use the open standard protocol SIP.
The Domain Name System (DNS) is one of the most important services in the HHU network. Its main task is to answer name resolution requests.
Access is via the SSID eduroam (education roaming). The data transmission is encrypted. For authentication, use your university ID and the password of the HHU.
Via VPN (Virtual Private Network), you can gain access from home to secure services that are otherwise only accessible in the campus network.