GSM Functionalities Source Code ??

Hi,

I want to know if we can find the Source Code for GSM Functionalities like Call making, Messaging, MMS etc., I'm trying to run these things on a simulator. So plz help me.

Thanks

As all those are open standards, I expect the code for all those must be available.

you could have a look at
http://openbts.sourceforge.net/

also hunting around the openmoko project may find you some info.

ssam,
Thanku.

does anybody have any other hints !!

The standards are open but you will find most of the code implementing those standards to be proprietary.