Hi. I did not using Ring. I used qTox. But since Fedora 26 qTox is no more available due to no packager (packager who was maintain Fedora packages on OBS of openSUSE have no time for this).
I started, for that to investigate more about Ring. It say on following link, that Ring support "SIP":
But I did not understood what SIP mean exactly.
It say on following link, enter service IP, username, password...:
My question is that: does SIP mean that I can use Ring to connect to other chat servers, like Yahoo messenger, Hangout, Skype, ICQ, .....
It seem that "SIP" is an abbreviation for something. Any one know what it abbreviate ?