K otic - I can't explain ringtone RTTL codes

Icantexpla:d=4,o=5,b=125:8f#.7,16f.7,8d#7,16f7,32d#.7,1c#7,8g#7,g#7,8f#.7,1
6f7,d#7,8c#.7,16c.7,a#6,8f7,2f.7,8c#7,8g#7,c#7,1c#7,8f#.7,16f7,8d#7,c.7,16c
#.7,c#7