In order to receive a ringtone in the headset, you need to enable the "Ring From Headset" setting on the
Fanvil Xx series desk phones. You can do this via the web interface of the deskphone. From the deskphone, press Menu and then Status. On Network, please note down the IPv4 address and enter this in a browser tab. You will be asked for id and password; please use the configured ones. Once you successfully log in, go to Phone Settings and then under the Features tab, you will see "Ring From Headset". Please enable this and then press Apply, which is available at the bottom of the page. Please see a screenshot highlighting the setting below.
If you are unable to access this web page, please reach out to your IT administrator for help.