Somebody can explain to me in which way to load the file to work with the modem 6310i in bluetooth way, because in spite of many callings to the Nokia service nobody can explain to me the a.m.. I have not the DTL4 card, but I have understood the bluetooth should be universal. In the company we use all Nokia phones, in my laptop I work with nokia card, my previous telephone was the Nokia 6210, which has been changed by me just to have the bluetooth connection possibility. All that just to point out I was an estimator of Nokia phones. As for my job I travel a lot, when I read the advertising around the world around the corner, i thought the 6310i is my next telephone and I buy it on the first day was available on the Nokia point. Now I discover a lot of people with my similar problem, so it is clear that after this case the 6310i will be my last Nokia phone.