SIM: If your smartphone has a SIM card that's years old and you've never felt the need to replace it, it's time to be cautious. Telecom companies periodically upgrade their network systems. New SIM ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another. I started my career with CNET all the way back in ...

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 ...

I have a Ubiquiti EdgeRouter Lite routing between my home network and Comcast: eth0 Comcast, eth1 not in use, eth2 LAN. Recent software updates have made failover pretty simple, and so I'd like to ...

In today’s digital age, smartphones have become an inseparable part of daily life. From making calls and sending messages to online payments and social media, everything revolves around one tiny yet ...

Built with convenience, affordability, and global coverage in mind, ZetSIM removes the stress of expensive roaming fees and ...