in the emulator and on the phone different TSY modules can be found, e.g. phonetsy.tsy and mm.tsy. When are you supposed to use which TSY? I mean both phonetsy.tsy and mm.tsy can make data calls. Is there any recommendation as when to which TSY module? In S60 3.1 MR SDK emulator there are:

* cdma.tsy
* mm.tsy
* phonetsy.tsy
* sim.tsy
* trpat.tsy
* trpstubbed.tsy

What is TRP? What does it stand for?