I have a bad telephone connection after installing ADSL

I’ve had an ADSL internet service installed to my house and since I’ve started using it, my telephone line quality has become terrible. How do I fix this?

ADSL internet services use a certain part of a phone line’s signal which is one of the reasons why you can still speak on the phone while surfing the web.

Because of this, the ADSL signals have to be separated from the other phone services using a little device called a filter, this makes sure the phone and ADSL won’t interfere with each other.

What’s probably happened at your home or office is that a filter is either not installed, not fitted properly or defective.

Check each device that has a telephone connection in your premises has a matchbox sized filter attached and that they are plugged in correctly as shown by the labels on the plugs. If the problem still continues, then you’ll need to unplug devices (called an isolation test) until the problem goes away which will tell you which filter isn’t working correctly.

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