Web Results

www.lifewire.com/what-are-sim-cards-577532

Mar 22, 2017 ... You might have heard the terms GSM and CDMA in relation to your smartphone. GSM phones use SIM cards while CDMA phones do not.

www.imore.com/sim-card

Mar 31, 2016 ... SIM cards allow you to travel between phones with your phone number ... of the iPhone, they can use the phone with any compatible SIM card, ...

www.makeuseof.com/tag/why-do-cellphones-need-a-sim-card

Dec 6, 2013 ... What is a SIM card and why is it so important? Is there a way to use a mobile phone without requiring one? Keep reading to find out.

www.verizonwireless.com/support/4g-sim-card-faqs

Learn about 4G LTE SIM cards, which are necessary for using our 4G LTE network with your mobile device. ... Top 10 Things to Do with Your Smartphone.

www.puretalkusa.com/blog/whats-the-deal-with-unlocked-phones

Aug 7, 2014 ... With a locked phone, you can't take your AT&T phone, for example, ... With an unlocked phone, you can purchase a SIM card locally, have a ...

www.gottabemobile.com/will-my-android-phone-work-without-a-sim-card

Jan 26, 2017 ... A phone with no SIM card can be used as a dedicated music player, set it on your desk as a clock, or your bedside as an alarm clock. Or even ...

www.cnet.com/news/why-you-want-a-dual-sim-phone

Feb 28, 2013 ... Phones that take two SIM cards were a small trend at Mobile World Congress. ... You want to take a phone so you can keep in touch with local ...

support.t-mobile.com/docs/DOC-2031

You can lock your SIM card to help prevent someone from using your phone by securing it with a PIN number. If you forget your PIN, the PUK code on the back of  ...

www.ebay.com/gds/Are-SIM-Cards-Interchangeable-Between-All-Phones-/10000000177629401/g.html

CDMA-based phones do not use SIM cards. Rather, most carriers save the phone number and other personal information on the device itself. CDMA networks ...