Disabling Call Waiting in Your Internet Connection
One reason that a dial-up Internet connect might disconnect is that call waiting has not been disabled on the phone line connected to the modem you are using. Follow the steps below to disable call waiting while you are online.
Step 1: Click "Start, Control Panel". The Control Panel will open in either Classic or Category view. If Classic View opens (the view at right), click "Phone and Modem Options" and skip to Step 4.
Step 2: If Category View opens (the view at right), click "Printers and Other Hardware".
Step 3: Click "Phone and Modem Options".
Step 4: In the "Phone and Modem Options" window, click the "Dialing Rules" tab.
Click "Edit". The "Edit Location" window will open.
Step 5: Make sure there is a check mark in the "To disable call waiting," box. Select the correct disable call waiting code from the dropdown menu to the right. *70 is the correct code for most telephones. You might need to contact you telephone company for assistance.
Click "OK" to close this window.
Call waiting has now been disabled on your dial-up connection.