You just need to do the following steps.
(1) ALL THE STEPS ARE COMPULSORY STEPS.
(2) 1st send GP13 to 4444.
(3) 2nd you will receive that your gprs will be activated within 24 hours.
(4) 3rd just after 12 to 20 hours you need to reboot your phone.
(5) now open tools in your s60 phone.Go to connection,than access point,create new setting,put
NEW IP address as : 220.123.254.200.
And port address should be default(i.e.8080)
(6) now open any web site and its all for FREE.Remember you have to put access point name as : internet instead of "imis".
(7)with this settings you can surf internet in your computer / laptop also
source :heartfeelings