A SIM card, or subscriber identity module, is a small card in your cellphone that lets you place phone calls, send text messages, and more.

Piece is about the size of a credit card, albeit it a little thicker, measuring 83 x 55 x 4 mm (3.3 x 2.2 x 0.2 in). Users slot a secondary SIM card (either a Micro SIM or a Nano SIM if used with a ...

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This is a common problem, especially since more and more businesses are starting to issue mobile phones to their employees. Fortunately, there are a few solutions that enable you to put two SIM cards ...