This should have been described in the instruction manual supplied with the phone.Without knowing the make / model of your phone it would be impossible to submit a definitive answer. Needless to say, some handsets, like Nokia, include a software package that allows it to be controlled via a notebook PC. From here, you can then setup a network connection that allows you to browse the web via a GPRS profile./.
its Nokia 6280
Did that include a CD with something called "Nokia PC Suite" by any chance?
yeah i have it with me and i have installed it on Laptop
There should be a network option in the PC Suite software that allows the handset to function as a modem (unfortunately it's been some time since I last used PC Suite!)