Make phone calls without a signal

W i-Fi is everywhere, from your local café to airport lounges. Yet inside your car it’s often missing unless you have a recent or expensive model (see box opposite). That’s a real drawback. In-car Wi-

One of the best parts of a caravan holiday is escaping the pressures of everyday life – trading Microsoft Teams and Outlook for coastlines and countryside lanes. But even surrounded by the great outdo

Do you remember what you were doing at 3pm on Sunday 23 April 2023? If your phone was switched on, you probably heard it play a 10-second alarm and vibrate loudly, then picked it up in shock and saw a

If you’ve ever needed to get your club members together for a quick chat, you’ll know how difficult it can be – especially at short notice. That’s where WhatsApp’s group voice-chat feature comes in. A

It’s hard enough getting Wi-Fi to work reliably in a two-bedroom flat, let alone a field containing thousands of smartphone-wielding festival-goers or a train belting through the British countryside.

Ookla Speedtest (www.speedtest.net) is the most popular free tool for testing the upload and download speeds of your internet connection. It’s easy to use, works in your browser and has apps for Windo