"Dear Jukka, It is possible to play a sound on phone's uplink, however this feature requires proper priority and preference values for the player object. Unfortunately these values are Nokia's private information and cannot be shared with 3rd party developers. If a 3rd party application has this feature it must have been developed in partnership with Nokia. Please let me know if this case may be closed or if you need more info on this issue. Forum Nokia - Professional Support Lucian"
I think, this kind of attitude will really be thing which will eventually kill this platform . anyway, not really feeling that I'm getting enough back on what I'm giving, so taking a leave on this forum for awhile. Have fun guys.