Hi all here

I am new here and I tried to find help in other forums without any success so allow me to ask here

I am using 5800 phones for CSD (HSCSD) data calls (crypted calls) and I am not able to solve the following stupid problem:

It is impossible to change incoming data call ringtone and its volume (it is very quiet ringtone by default) from none of user menus. In my opinion the assignment of the default ringtone for incoming datacall should be somewhere in system folders. Would anybody here be so kind and help me solve this problem?

Thanx for any help in advance