Here is my OBi version of listed tones, give it a try --
Dial Tone: 425-19;15
Busy Tone: 425-19;15;(.25+.25)
Off Hook Warning Tone:
-- "Howling" tone in OBi tone profile: 425-3;5;(.25+.25)
Ring Back Tone: 425-19;-1;(1+4)
SIT1 Tone: 950-16,1400-16,1800-16;20;(1/.33+0,2/.33+0,4/.33+0,0/0+4)
SIT2 Tone: 425-16;15(.25+.25)
SIT3 Tone: 425-16;15(.125+.125)
by the way, do you have connection to PSTN line in Denmark? do you have LINE port settings to share?