Dele,
Thank you for reply.
I don't really like Jitsi community forum as it is based on e-mail and very defecault to find anything so prefer Openfire.
Yes, the issue is with Google Chrome and ofmeet. On top of voice problem the screen sharing doesn't work - it redirects me to page with information I don't use google chrome!!! And sharing PDF tries to do this for ever and ever but I can leave with this opposite to voice quality.