Spark 3.0 and Jingle Not Working

Hi, I have a working openfire installation on linux, I have also activated and configured the Jingle plugin, Stun/Turn Pioturn and Pade Meeting, all are ok but on Spark all users cannot find the way to have an Jingle audio call. Pade Metting working perfectly.
What am I doing wrong? Spark is installed on Windows PCs.
Thanks in advance for your support.

Hello, I see that Jingle plugin is currently not supported by Spark 2.9.X, Spark 3.X

Ok, thanks, I didn’t understand.