Trace Dominguez on MSN

How Dial-Up Modems Used Sound to Talk to Each Other

Those chaotic screeches of dial-up weren’t random — they were data, tones encoding handshakes, carrier signals, and sync ...

How to use Wi-Fi calling and make phone calls even without a cell signal

Wi-Fi calling allows you to make calls using Wi-Fi instead of a cellular connection, and is great for folks living in areas ...