There sewn 8 polyphonic ringtones. If you succeed to load the tune, then the idea of giving it the ID "9" in the phone configuration settings you can configure what tune it will take for the dialer. Myself I don't zanyalsya, but googling and reading the user manual
I came to the conclusion that with a tambourine and dances to try. Preferably on the phone who do not mind ruining, just in case.