1 From the list of available audio codecs, deselect all except ``opus/48000''.
2 From the list of available video codecs, deselect all except ``VP8''.
4 You can make these changes via the interface of Jitsi:
6 -> Jitsi-Tools-Options-Audio-Encodings
7 -> Jitsi-Tools-Options-Video-Encodings
9 It is recommended that all the participants of an audio/video call use the