SIM cards can be inserted into any SIM ready communication device. Access to a SIM card usually requires the use of a personal identity number (PIN) to restrict access to the SIM card to people who ...

(1) A cellphone that operates on any cellular carrier's network that supports the same air interface (GSM or CDMA) and frequency bands built into the device ... THIS DEFINITION IS FOR PERSONAL ...

WAP will allow GSM devices to communicate with non-mobile network infrastructures. The company taking the lead with WAP's development is Unwired Planet, which has developed a low bandwidth HTML ...

Fixed software programs that internally control various electronic devices or individual hardware parts of these devices (such as mobile phones). They involved very basic low-level operations of ...

A multi-carrier GSM phone with two ... carriers as well as people who want a business and personal line in one device. Triple SIM and quad SIM phones support three and four carriers respectively.

Over the last few years, news that police, military, and intelligence organizations use portable cellular phone surveillance devices – colloquially known as the ‘Stingray’ – has gotten out ...

[Karsten Nohl], with a group of security researchers has broken the A5/1 Stream Cipher behind GSM. Their project web site discusses their work and provides slides(pdf) presented at 26C3.

However, an unlocked version is available that works with most GSM carriers ... t fit the strict definition of “dumbphone,” though some people might find the device somewhat dumb, but we ...

Just over half the global population now has access to mobile internet, but the rate of growth is slowing. While some of the ...

The exposure standard for wireless devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. Unfortunately the limits set by the FCC/IC and the Concil of the European Union ...

If you aren't happy with the one you have, are looking for a change, or have started looking into getting an Android, Apple or other device, T-Mobile is likely ... does come at the cost of reduced ...

Vodafone, Telstra and Optus have officially closed up shop on Australia's 3G network. Here's what will stop working from ...