Sim Card Technology

UK free sim cards operate on technology based on global mobile phone standards.

However on some networks, the mobile phone is locked to its sim card carrier.

The global technology standards now are the GSM – Global System for Mobile Communications – networks.

GSM is the most popular standard for global mobile phones and utilises the latest sim card technology.

GSM Technology

The GSM Association is a trade body of mobile phone companies and it is thought that around 85 per cent of the global mobile market uses the standard including more than a billion people.

This means mobile phone users use their phones throughout the world, enabled by international roaming arrangements between mobile network operators.

GSM is digital and often described as the second generation technology for mobile phone networks (2G).

As such GSM is the smart phone network application allowing email and Internet use plus transfer of other digital data such as texts and digital camera photographs at high speed.

Great benefits come from the GSM satellite technology which means sim card users can roam between networks at will as long as contracts allow.

Sim Technology

The main feature of GSM technology for the consumer is the sim card – or Subscriber Identity Module.

Your sim may seem like a humble little chip but it is a highly advanced detachable smart card device which has revolutionised modern day communications, making them fast, flexible and affordable for billions of people.

The ease of which we can change data from phones and other equipment and technologies in an instant by simply changing sim is something we all take for granted but makes modern communications what the