Contact specific user using Jitsi?

I’m a newbi searching for a Skype replacement.

How do I contact (“ring”) a specific user using Jitsi?

I’ve found references to jitsi having a ring capability:
[jitsi-dev] How to increase call ring time in JISTI - #2 by Ingo_Bauersachs
Android screen blackout during phone ring and call

But I can’t find how to contact (“ring”) a user using “”.

I’d a appreciate any pointers.

Thanks for the help.

There is no rining. You enter a meeting and send the other party the link to join you.