I would like to have some clarifications regarding the audio policies for priorities

A client playing audio can be set with different priority values, in order to resolve conflicts when more than one client tries to output audio at the same time.
Does someone know the priority of the
- MMS notification,
- Email notification,
- SMS notification,
- Alarm notification,
- Power Alarm,
- switching UI mode

In the N70, 6680, 6630

does the priority values are the same for any handset S60 2nd Edition / S60 3rd Edition ?