The numbers are pronounced in Arabic like...

3 is for Aayn pronounced as Aaa from the throat
3' is for Ghayn
9 is for Saaad pronounced as saa
6 is for Taa
5 is for Khaa
7 is for Haa the deep one
2 is for Aaa a little nazel

I'll have to demonstrate these to tell u how they are used, its a little complicated to show here lol.

--------

Lebanon... the love of my soul!