I have a Nokia 2865i CDMA phone that supports Bluetooth. I want to be able to use it for BT DUN from my N810. I'm in China and unfortunately the Operator list for China is empty on N810 when it asked me to choose one. So I had to select "(none)" and create a connection manually.

I use the information my ISP (China Unicom) gave me which is: Number:#777, username/password: card/card. That's all I had to do to make it work on my Windows XP box. But on N810, after dialing the connection was established but I didn't get an IP and couldn't go anywhere on the Internet. I think it should not be an authentication problem because the connection can be established. But I don't know how I can troubleshoot this issue to make it work.