I've created a thread on BK forum too as maybe not all SM users visit SM forum.
http://forum.brillkids.com/teaching-your-child-music/soft-mozart-skype-group-call-hellene-hiner-and-students-interested/msg89897/#msg89897
Got
the first answer/idea from Skylark
:
"You know that you can use google hangout and to not be limited by Skype Premium?
It works the same as Skype, excerpt no need to pay for premium account and no limitations on the participants! Hope this helps.
Also if you use Google Calendar to plan the event you can put the timings in your local time, but when you share the calendar with others ( who also can put timings in their local time) it would convert timings automatically and would show it on their calendars in their local time! Very handy smile
Thought to share some of these tips with you and wish you all a wonderful time learning!
"
I'll look more into what she said. For now I prefer skype as most people use it and I'm not into creating as using google account too. I have too many accounts already