In various ways (note: it depends on client implementation for the UI, I'm going to talk about the GNOME version here)
1) for all calls: navigate into the Account preferences, "Advanced" tab, and disable "Enable Video".
2) during one call (note: it'll start with video on!): click on the "Toggle mute video" icon on bottom of main view.
3) never have video (any clients): rebuild libring with --disable-video configure flag :-)
// Guillaume
----- Le 22 Juin 17, à 14:57, David Burleigh <address@hidden> a écrit :
How can I turn off the video on calls. I want audio only.