Embedding fonts in IE

Question

I have a site that uses custom fonts. I've got the font form the designer in oft format. I've used a converter to convert them to eot format.

and added the following code to the css

@font-face {
    font-family: 'AdumaFOTRegular';
    src: url('fonts/AdumaFOT-Regular.eot');
    src: local('AdumaFOTRegular'), local('AdumaFOTRegular'), url('fonts/AdumaFOT-Regular.otf') format('opentype');
}

This works great in FF and chrom but doesn't work in IE. The sample site is here: http://test.hannitcohen.co.il/eshkol/