LPC2364-USB interface used to detect Mobile Phone.

Dear All !!

I am trying to configure LPC2364 controller board as Host and connecting an Mobile Phone to the USB Port of LPC2364. i have a query
1.In which class the Mobile phone will be identified by the controller...is it Mass storage class as the mobile has SD-CARD ?
Please suggest your views on this ..!!

Thanks and Regards
Hrishikesh!