A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

A SIM card, or subscriber identity module, is a small card in your cellphone that connects you to the network. Your SIM card contains your phone number, and lets you make phone calls, send text ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Zoe Thomas: The last time you switched cell phone carriers, you might remember ...

Phone numbers might seem immovable, but they’re actually pretty easy to change if you have the right access. New research from Princeton University reveals that it might be all too easy, in fact — ...

Physical SIM cards have long been synonymous with phone numbers. They've changed greatly from what they once used to be — giant cards you'd have to put in after removing your phone's battery – but ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Zoe Thomas: This is your Tech News Briefing for Tuesday, July 26th. I'm Zoe ...