Telephone

Phone cards often became gift and collectible items.

History of Telephones What Ever Happened to Phone Cards?

Phone cards were once a bestseller. Today, most are worth only a few euros.

Telekom, Vodafone & Co. European Network Providers Aim to Close Dead Zones via Satellite

Telekom, Vodafone, Orange, and Telefónica plan to provide mobile network coverage via satellite to eliminate dead zones.

An unusual audio glitch is affecting several generations of Pixel phones, currently causing uncertainty.

Exercise Caution Don't Speak Until the Other Person Picks Up!

Researchers report an effect in mobile networks that may allow recipients to hear voices before the call officially begins.

Looking at your phone while crossing the street? That could become costly in Italy.

Italy Cracks Down Those Who Stare at Their Phones Should Pay When Crossing the Street

Attention, Italy vacationers: If you're caught using your phone on a crosswalk, you might soon face a fine.

You think you're talking to a doctor, but on the other end are scammers.

Caution on the Phone! Police Warns of Fake Doctors

Police Warns of Scam Calls With Fake Doctors Scammers are claiming there's a medical emergency and demanding money. Here's how to protect yourself.

Analog Telephony Landline Phase-Out in Finland! Is Germany Next?

Finland Shuts Down Last Analog Landlines: What This Means for Germany and When Copper Lines Might Disappear Here

Phone Rings, but No One Speaks What Silent Calls Are and the Dangers They Pose

Phone rings, but no one speaks—it could be a silent call. TECHBOOK explains the risks and how to protect yourself.

A woman in a café looking out the window while talking on the phone.

Practical Innovation Android Will Soon Display the Reason for a Call

Google is working on a new Android feature. In the future, it might be possible to see why someone is calling as soon as the phone rings.

Secret Number Leaked Trump's Private Cell Number Circulates in Washington

Trump's private cell phone number is reportedly making the rounds in Washington. Why the direct line to the president is causing a stir.

Man Talks on a Telephone Device Developed by Alexander Graham Bell

Historical Milestone 150 Years of the Telephone: How Bell's Invention Changed Communication

When Alexander Graham Bell registered his telephone on February 14, 1876, no one could have predicted how fundamentally this technology would change the world.

If an unknown person is on the phone, you should be careful what you say

Caution! Fraudsters Are Waiting for You to Say This Word on the Phone

If the phone rings and an unknown number calls, be skeptical. This is because scammers want you to say a certain word over the phone.

Hotline messages are annoying. But using a specific word can get you to a representative faster.

Faster Access to Advisors Bypass Annoying Hotline Messages With Just One Word

When calling a hotline, we often find ourselves stuck on hold. One word can change that and connect you directly with a representative.

A woman looks at her smartphone in her hand while driving.

According to the tax code Smartphone Rings Too Briefly? Here's How to Easily Fix the Problem

The ringtone duration of a smartphone can be easily changed using control codes in the phone app. TECHBOOK explains how it works.

If the mobile network fails, you can make calls over Wi-Fi.

Connection Everywhere Calling Without Cellular Service: How Wi-Fi Calls Work

Wi-Fi calls are practical when mobile networks fail. They offer high call quality, are included in plans at no extra cost, and don't require an additional app.

Experts Offer Tips How to Protect Yourself From AI Phone Scams

Criminals are increasingly using artificial intelligence and emotional pressure for phone scams to obtain money and data.

New UN Report Warning! Why Scammers Might Call You More Often in the Future

Phone scams often originate from scam call centers. According to the UN, these centers are increasingly spreading.

Highly frequented for years Telekom discontinues popular service without replacement

Unused services tend to get scrapped. This now applies to Deutsche Telekom's Directory Assistance, which will cease at the end of 2024.

A lucky cat in Murbach, France - and the last working telephone box in France in the background

Curious The phone booth in France that rings constantly

A phone booth in France actually still works - and rings constantly. TECHBOOK explains why this is the case and how it came about.

Market Analysis Shows Calls from landlines to cellphones can quickly become a costly trap.

Calling a mobile phone from a landline can be expensive, as shown by a market analysis. TECHBOOK explains how you can protect yourself.

2000s Relic End Announced for Popular Telekom Phone Service

With call-by-call and call-through services, users can save a lot of money on domestic and international calls. However, these discount prefixes won't be available for much longer.

Europol Phone Email Stock Image: Woman in the Dark on Laptop

Europol Scam Europol Summons? Beware of This Scam

Suddenly, you receive a call or email from Europol, and there's even a threat of an arrest warrant. This could be part of a scam.

In iOS and Android, you can block annoying contacts and phone numbers.

Techbook Basics How to Block Unwanted Contacts on Your Smartphone

Spam calls and messages are unfortunately very common. However, both Android and iOS offer ways to block contacts.

Comeback Do you still have a landline phone?

In fewer and fewer households, smartphones are replacing traditional landlines. However, in home offices, landline telephony is experiencing a revival.