• Home
  • News
  • Magazine
  • Shop
  • Subscribe now
  • Forum
  • Service

Search

Subject Area

Articles

Products

My Elektor

Log in

Email:

Password:

Remain logged in

Password forgotten?
Register

Shopping cart Shopping cart

Info Elektor Credits: 0

Home › Magazines › 2002 › July › Modem Line Protection

‹ previous
next ›

Modem Line Protection

Published in issue 312, July 2002

We haven’t yet experienced this first-hand, but it seems to occur more often that when some websites are visited they switch the Internet connection over to a premium rate dial-up number. This is of course very irritating, because it is hardly noticeable and it certainly costs a lot more.This circuit is simplicity itself, but still offers effective protection against these practises.

Click below to download a PDF copy of this article from Elektor magazine.

 

Downloads 
PDF Article (e027011.pdf)
10 Elektor Credits
Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

Subscribe now

Subscribe now
Subscribe now
Browse online
More

Subscribe to our free
E-weekly Newsletter!

Enter your Email address:

Follow Elektor

      

Act now!

> Become an Elektor Member

> Register for E-weekly

> To Elektor-plus.com

> Become a supporting company

> Check Elektor Showcase

> To FAQs

Sponsored

NEW!
Embedded Code Source
Browse & download free software/firmware code examples for your PIC® MCU projects. Find code for controlling simple timers, UARTs, low power modes, FFTs, LCD displays, motors & more!

FAQ

Before submitting questions, review our FAQ section!

Bestseller

Controller Area Network Projects

The aim of this book is to teach you the basic principles of CAN networks and in addition the development of microcontroller based projects using the CAN bus.

More

Package Deals

Elektor Bundles

Check our Package Deals and save money! Discounts up to 19% now available!

More

Price Slashed

Elektor OSPV

This Open Source People Vehicle is perfect for factory halls, warehouses, hospitals, colleges, schools etc.

More

© 2012 Elektor•Feedback•Media Data•Disclaimer•General conditions•Sitemap•RSS