Ive got hold of a code 74392939.... based in the IMEI number and service provider code (5 digit one)

is it a restriction code/master code? I dont know

I was wondering how you can use it to unlock a DCT2 phone (at least I think it is that type of phone)

I tried #pw+<number>+...# but no luck

any ideas (preferably try to unlock without use of s/w as Ive no cable)