Does an unlocked cell phone work with all GSM providers?
Hi yes unlocked phone work with any GSM provider .IF you want to unlock your mobile from network lock then visit Unlocking4Free.com here they generate unlock code for some older mobile models at free of cost.
This depends on the frequency bands supported by the cell phone. GSM wireless service is offered on different frequencies around the world (850, 900, 1800, 1900 MHz). A quad-band phone will work anywhere that GSM service is provided (over 200 countries), a tri-band phone will work in a lot of countries and dual-band phones will work in a more limited number of countries. If you plan on traveling, you can do a Google search for the frequencies used by your phone and those used in the country you plan on visiting to see if they are compatible.
