Making Free Phone Calls From the Computer

The telecommunications industry has come a long way since Ma Bell opened the first telephone exchange in the late 1800s. With the advent of fiber optics and wireless broadband technology, we no longer have a need for a dedicated phone connection, as today's data networks can c ...more

Did you know that you can use Gmail to make free phone calls to anywhere in North America? We're not talking computer to computer, but actual free phone calls to cell phones and home phones. All you need is a Gmail account, a microphone, and speakers plugged into your compute ...more

Smartphones are great. They help you keep in touch with your loved ones and stay up to date on what's going on in the world. The problem is that like everything else that's useful, they cost money to use, and between calling, texting, and data plans, it can get really expensiv ...more

Notice anything different about your Google searches lately? Your favorite businesses are becoming even more reachable online. Now, you can simply Google a business and click on its highlighted phone number to give them a call immediately from your computer. While it's always ...more

While our smartphones are many things, one of their primary functions is to make calls. Many of us try to avoid ever having to make calls, but there are situations when it's a must, such as wishing your grandma happy Birthday or calling 911 — and in those times you want stella ...more

Your Nexus 7 may be a tablet, but it can also be used as a phone, thanks to the continued upswing of VoIP applications, which send voice and media messages over the Internet—not over a cellular network. There are many VoIP apps on Google Play that let you make free phone call ...more

Your social security number, credit card information, and medical history can fall into the wrong hands if you're not careful about how and where you share your data online. If you really care about your data, there are tools and techniques you can utilize to protect yourself ...more

Trying to figure out which music streaming service to subscribe to can be a difficult task when the playing field is so crowded. Each has its benefits, as well as downsides, so finding the right one for your needs and wants can take a lot of overwhelming research. But we've do ...more

Smartphones are still "phones," which means communicating with others is usually a primary use. Ranging from a simple "hi" to a more personal conversation and even sharing passwords, our messages should remain private so that only the intended recipient sees their content. Whi ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

When it comes to sniffing Wi-Fi, Wireshark is cross-platform and capable of capturing vast amounts of data. Making sense of that data is another task entirely. That's where Jupyter Notebook comes in. It can help analyze Wi-Fi packets and determine which networks a particular p ...more

Anonymity is something that doesn't exist today. Everything you do in the world is tracked, from the purchases you make to surfing the internet—even taking pictures on your iPhone. Everything you have ever said and done on the internet is still there—somewhere. This is called ...more

If you didn't get the memo, passwords aren't enough protection for your online accounts. Even a long and complex password offers only one line of defense which can falter. Two-factor authentication adds an additional layer, bolsters your defense, and decreases the risk of your ...more

Sitting in the dentist’s waiting room, I found I couldn’t browse the internet on my smartphone anymore. My eyes were tired from reading and there were no headphones to listen to music. There are no magazines at this dentist’s office, just an old TV playing Russian music videos ...more

In the last decade, the number of people working remotely in the US has increased dramatically, and so has their need for technology and software to supplement that remote work. Whether you work from home or a coworking office space, the requirement for highly compatible and h ...more

Apple's iOS 11 is finally here, and while they showed off several of the new features it brings to your iPhone, iPad, and iPod touch back at WWDC 2017, they've only just touched the surface of what iOS 11 has to offer. There are a lot of cool new (and sometimes secret) feature ...more

It's easier than you might think to hack into Wi-Fi routers using just one unrooted Android phone. This method doesn't require brute-forcing the password, a Windows OS for converting PowerShell scripts into EXE format, a reliable VPS for intercepting hacked Wi-Fi passwords, or ...more

So, your grandmother finally wants to ditch her flip phone for a shiny new smartphone? Congratulations. But helping her get used to her new device, even when it's an iPhone, is no small task. Grandma mastered checking her email in late-2012 and just recently learned there's a ...more

The iPhone XR has touched down alongside the XS and XS Max, and it utilizes tried and tested materials found on the iPhone 8, while being molded in the same vein as the iPhone X. The budget-friendlier flagship comes with its own set of design elements to set it apart from its ...more

The Google Cast feature that serves as the primary interface for the Chromecast and comes bundled with Android TV devices like the Nexus Player is a marvel of modern technology. But as these things go, troubleshooting issues can be difficult with something so groundbreaking, e ...more

We've all been waiting for it, and now it's finally here— Video Skype for the iPhone 4. It's no longer just a voice over the phone, now you can finally see those rosy-red cheeks of your fellow Skyper, and maybe even their underwear. Check out the official Skype for iPhone - no ...more

When you think of all the fun and games smartphones have to offer, it's easy to forget that they also make a great tool for getting things done. With utilities like document scanners, calendars, to-do lists, office apps, and password managers, that little computer you carry ar ...more

These days, there is hardly a place in America that doesn't have access to the internet. But with web usage fees and ridiculous cell phone provider contracts, sometimes it's still necessary to go a little DIY when it comes to staying connected. If you have a Windows 7 or 8 co ...more

The NVIDIA Shield is essentially a game controller with a screen attached so you can take your music, movies and games wherever you go. It lets you stream the PC games you already have over Wi-Fi so you don't have to be in front of the computer to play them. LinusTechTips was ...more

Phone specs get better and better each year, and multiplayer mobile games are right there with them. Instead of playing solo, jump into some real-time gameplay with co-op and player vs. player modes, and battle friends, family, and strangers from around the world. But which mu ...more

Hacking Wi-Fi is a lot easier than most people think, but the ways of doing so are clustered around a few common techniques most hackers use. With a few simple actions, the average user can go a long way toward defending against the five most common methods of Wi-Fi hacking, w ...more

Fireworks are the best part about the Fourth of July and other celebrations, but they can easily cause accidental injuries. It's both safer and more fun to set them off remotely, so we'll hack some standard fireworks with nichrome wire, a relay, and an Arduino to ignite remote ...more

The Android App Market is flooded with tons of new mobile applications each day. But there can't be that many developers out there familiar with the Android OS, so where are all of these apps coming from? People like you. People like me. All of which don't have the slightest ...more

Watch out Instagram, there's a new free, sociable photography filter app that hit the iTunes App Store recently, and it just might be some good competition. It's called PicYou and might sound familiar to some of you photo sharing fiends out there. That's because it's been a su ...more

Like the recent XSS 0day exploit found in the Mac and Windows versions of Skype, a similar one has been found in the Skype app for iPhone. The vulnerability allows an attacker to send a message that contains malicious JavaScript code in the "Name" parameter. This code can stea ...more

Thanks to Apple's implementation of Continuity on Mac OS X Yosemite and iOS 8, communication is truly a seamless thing. Without even looking at my iPhone, I can message or call friends comfortably from my computer or iPad. Even better, with the latest iOS 8.1 update, you can ...more

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal the ...more

In this series, we are going to get you to the edge of building your own cloud-based, cross-platform augmented reality app for iPhone, Android, HoloLens, and Meta 2, among other devices. Once we get the necessary software installed, we will walk through the process of setting ...more

Aircraft equipped with ADS-B are constantly shouting their location into the radio void, along with other useful unauthenticated and unencrypted data. In this guide, we will make an ADS-B receiver using a Raspberry Pi with a software-defined radio (SDR) dongle, which we can us ...more

After a few months, I get so fed up with hearing the same ringtone go off alongside each new notification that I'm forced to switch things up—only to end up repeating this whole process when the new one gets played out. And I'm sure people around me are equally sick of listeni ...more

In college, I enjoyed eating, sleeping and making my roommate's life a living hell. My most satisfying prank involved 500 red cups stapled together, filled with water, and strewn across his bedroom floor. He was not happy. To clean up, he had to unstaple each cup, carry it to ...more

You're reading this so you're probably already safely huddled up in your house or apartment, watching as the entire planet grapples with the unfolding coronavirus health crisis. But unlike some others, you're lucky enough to already have a couple of weeks of supplies and now i ...more

Thanks to a couple of photoshopped images that made rounds across Twitter last year, iPhone users were duped into thinking that iOS 8 included a security feature that would lock individual apps. Of course, none of it ended up being true, but we covered other features and apps ...more

While LG G3 users have been patiently waiting, developer the cubed and his Codefire team have been diligently working on a successful unlock method for the heavily locked-down bootloader. Now it's finally here, and the unlocking method is extremely easy to do—and it works for ...more

Anyone who uses a computer on a regular basis probably knows how to access the task manager to check system resources and usage stats. However, on a Samsung Galaxy S3 or other Android device, it may not be so obvious. There's no equivalent to Control-Alt-Delete, but it's still ...more

Most of us have some sort of malware scanner or antivirus program on our computers, but what about our smartphones? A lot of people don't realize that computers aren't the only devices that are susceptible to malicious software and apps—they can follow you on your smartphone o ...more

When it comes to cybersecurity, one layer isn't enough. A complex password (or one created with a password manager) does a good job of protecting your data, but it can still be cracked. Two-factor authentication strengthens this by adding a second layer of security, giving you ...more

Windows 10 marks a new era for Microsoft with the return of the Start menu, the demise of Internet Explorer, and the introduction of the remodeled Windows Store. While the new Windows Store is meant to bridge the gap between every device running Windows 10, many apps have yet ...more

Google Meet might not have virtual backgrounds like Zoom, but it hits all of the other basics, from hosting many multiples of video participants to sharing your screen, that you'd expect from a robust video conferencing platform. However, one of those essential features, shar ...more

While most kids his age are busy playing Fortnite, 11-year-old Yumo Soerianto is developing augmented reality games. Kids like Soerianto are the future of the augmented reality field — they'll likely be coming into their own as professional developers right as AR technologies ...more

The space on your phone is extremely valuable, so getting the most out of your screen real estate can help you out when multitasking or for just making your device feel bigger. One thing that is often overlooked when it comes to saving space on the screen is the keyboard. We' ...more

My favorite type of video game is first-person shooters, and the one that started it all for me was GoldenEye 007. There was just something about the controls, fast-paced action, and free-roaming environment that got me hooked. Unfortunately, I'd have to dust off my old Ninte ...more

Whether or not you believe that the government is snooping around in our private emails, texts, and phone calls, it wouldn't hurt to protect ourselves a little better in the digital realm. If you're worried about them (or whoever) eavesdropping on your digital messages, takin ...more

Thanks to the expanding universe of augmented reality tools being made available, increasingly, anybody can liven up sleepy office meetings with immersive computing. Now, a new 3D presentation-sharing service for the Magic Leap One has PowerPoint is in its crosshairs (someone ...more

The 8-bit NES may have ruled the late-eighties, but the SNES took over the early-nineties with its 16-bit graphics and 3D-like gameplay on titles like Star Fox and Dirt Racer. When 32- and 64-bit consoles came out in the mid-nineties, the Super Nintendo took a hit, but with th ...more

Laptops are almost a necessity in today's society. It doesn't help that a laptop that can actually increase your work productivity will put at least a $1,500 dent in your wallet. I'm sure you have searched around to try to find factory direct deals, or (shiver) even looked at ...more

Smartphones are crazy awesome. You can do your banking, track your children, find directions, and even pretend to have a mustache. The only thing that these personal supercomputers are missing is physical interaction with the environment. I wanted to be able to call my house ...more