When you are browsing your favorite websites using dial-up internet connection, your incoming calls can create problem with your modem if the call waiting option in your modem sittings is enable. Your modem may be hangs up and disconnects the internet connection frequently. Normally when you disabled the call waiting option in your modem sitting and any body tries to call you, he will get the busy beep during internet connected. You should always disable the call waiting option to avoid modem disconnectivity or hangs up.

To disable the call waiting option, first click on Start button, then Network Connections.

Here double click on your internet connection and click on Properties button then General.

Under General tab select Use Dialing Rules box then click on dialing rules button.

Here select My Location then click on Edit button. Under General tab select the option To disable call waiting dial and put any number in next box like *32.

At the end click on Ok button and dial your connection again.