Ramon Gordon - Articles

What is a SIM Card and what is "unlocking my phone"
Sim Cards and Unlocked phones A GSM phone is not directly linked to you|GSM phones are not binded to you. Instead, it has a removable card, called a SIM (subscriber information module) and this SIM has a unique number on it. This is what identifies you to the wireless provider Normally cell phone service works so that the unique number in your phone (its ESN) is used by the cell phone carrier to identify who you are. The wireless service 'knows' that a particular phone's s... Read
By: Ramon Gordon | 16/11/2009 | Information Technology