How to block volume control

Tue Jul 8 14:53:03 UTC 2014

Hi folks!

I have some machines running softphones and the users of this machines 
always are making changes to the volume.
They touch input source, output source, volume of microphone and speakers!

Is there any way to lock this? maybe making the user more restricted in 
policies?

I don't know where search about this.

Thanks for your time.

Emiliano.

-- 
Emiliano Vazquez | PcCentro Informatica & CCTV
Office: +54 (11) 4635-3218 y Rotativas
Movil: 011-15-6253-7165
Mail: emilianovazquez at gmail.com
Web: http://www.pccentro.com.ar