What is GSM, and if I have a GSM phone will it work on any GSM service?
GSM stands for Global System for Mobile, and is a type of Time Division Multiple Access. The two are different enough not to be compatible, but both rely on the same theory of splitting multiple calls into fractions of time. GSM phones have a SIM card inside the phone (not much bigger than the tip of your thumb to the first knuckle) that contains subscriber details and security information. SIM stands for Subscriber Identity Module, and it tells your carrier’s network which phone is which, and how to bill you for the calls you make. Software locks on these phones prevent you from using a SIM card that belongs to a competitor.
GSM, which stands for Global System for Mobile communications, reigns as the world’s most widely used cell phone technology. Cell phones use a cell phone service carrier’s GSM network by searching for cell phone towers in the nearby area.
HI yes your GSM phone will work with any GSM sim only if it is unlocked one .Else if the Phone is locked to any particular network provider then you can’t use it with any other GSM sim until you unlock it .You can easily unlock your phone using sites like UnBBLock.com here they are rendering network unlock code for all blackberry mobile models at reliable cost ….Else if you want to unlock some other mobile model then visit sites like Unlock-Zone.com here they are rendering network unlock code for all mobile models at reliable cost ….After unlocking your phone you can freely use it with any GSM sim …..
