have you plugged the telephone into a working telephone line?
Test the line with a different phone and let me know if it works.
Also test the Iwatsu phone on a different line and let me know if it works there..
Sorry for any confusion. I am a user of this site, just like you.
I need further information in order to diagnose the problem, however either the phone is faulty or the line is faulty, and your reply will help confirm which it is...