3650 Modem Question -Please Help!

I'm horribly stuck on how to do this.

You know how you can use the phone as a modem with a laptop if you have the ir port goin? Well what I want to do is still dial up to the internet using the phone as a modem, but instead of using a laptop with an ir port, I just want to browse the web on my phone...how can this be done?

I know its possible, it's gotta be. If I can use the phone to browse the internet while its sending data out the ir port, I should be able to just use the phones browser.