When you purchase a mobile phone, most people do not realize that your new phone usually comes locked so that you cannot utilize any other network rather than the one specified when you purchase the phone. This is called a network provider lock, and allows your phone only to accept a single GSM network. Not …
Tag: Sim Cards
May 09
Cheap Unlocked Cell Phones: Switch Cell Phone Providers Without Losing Your Phone
The concept of unlocked cell phones goes like this. Carriers that operate on the Global System for Mobile Communication (GSM) such as Cingular Wireless, AT&T Wireless and T-Mobile use a Subscriber Identification Module (SIM) card. The SIM card is a microchip that stores subscriber data. It is issued by a carrier and provides cell service …