Web browsing over an unlocked cellular phone

Archived from groups: alt.cellular.motorola (More info?)

Due to travels in the Asia countries, I bought an unlocked Motorola
V300 GSM SIM card cell phone. Everything works fine including the AOL
except that it won't allow me to browse the web- "Network not
available". After checking the manual and calling my SIM card service
provider, finally found out that the original t-mobile company has
software that blocked the phone from web browsing other than its own
t-zones. Is there a way of getting rid of it? Is there anything to
do with the Flex version?