SIM lock

src: i.ytimg.com A SIM lock , simlock , network lock , carrier lock or ( master ) subsidy lock is a technical restriction built into GSM a...

Prepay mobile phone

A prepay mobile device (also commonly referred to as pay-as-you-go ( PAYG ), pay-as-you-talk , pay and go , go-phone or prepaid ) is a mo...

History of prepay mobile phones

src: i.ytimg.com The history of the prepay mobile phone began in the 1990s when mobile phone operators sought to expand their market reach....

European Union roaming regulations

src: d.ibtimes.co.uk European Union roaming regulations (sometimes called the Eurotariff ) regulate the imposition of roaming charges withi...

Samsung Galaxy Note series

src: i.ytimg.com Samsung Galaxy Note is a series of Android-based smartphones and tablets developed and marketed by Samsung Electronics. Th...

Samsung Galaxy S III

src: s-media-cache-ak0.pinimg.com The Samsung Galaxy S III (or Galaxy S3 ) is a multi-touch, slate-format smartphone designed, developed, a...