Why Does the Telephone Ring Cut Off My Computer Connection?

Written by mike smith
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Why Does the Telephone Ring Cut Off My Computer Connection?
Determine how your telephones can interfere with Internet connections. (Creatas Images/Creatas/Getty Images)

Whether you use a wired or wireless Internet connection, the telephone could cause interference with the connection. The phone can directly interrupt DSL signals through the phone line and cordless phones can cause wireless signal interference. Fortunately, the solutions for both problems are inexpensive and easily implemented.

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DSL

If you have DSL service, you should be sure that you have installed filters on all the phone jacks in use in your home. Though much faster than dial-up service, DSL is still transmitted through your phone line. Incoming phone calls can send a signal that is effectively nonsense to the modem, which disrupts it. If you notice that the Internet tends to go out just as or before the phone rings, probably you have a phone connected in your home without a filter.

DSL Solutions

Your service provider should give you phone line filters. Plug the filter into the phone jack, just as you normally would the phone cord. Insert the phone cord, in turn, into the other end of the filter. You can also use flat wall filters with wall-mounted phones. If you have filters installed on all of your active phone lines and you still have issues, continue to the wireless section.

Wireless Problems

Wireless routers, cordless phones, other wireless devices and even microwaves all use very similar frequencies. If you have a cordless phone or its base placed near your router, it could cause interference that makes the signal temporarily unusable.

Wireless Solutions

The simplest solution is to move your cordless phone base further away from the wireless router. If this does not solve the problem, you can buy a phone that uses a different frequency. Most routers use the 2.4 GHz frequency so a phone that uses 5.8 or 1.9 GHz (two common options) should clear up any light wave congestion. Some phones also include the option to change between multiple channels. Before you trade in the phone, consult the user's manual to see if yours includes this feature and try any additional channels available. Changing a phone's channel is usually as simple as flipping a switch on the base or choosing a different channel in an electronic menu. Your phone's manual will explain how if the feature is available.

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