Open up "My Computer", then open "Dial-Up Networking". Then open
"make new connection".
Open up "make a new connection". Type in any name you want for the
connection name, select your modem, and push next.
Type in the phone number that you will be utilizing and then click
next, and then finish.
Right mouse click on the new connection and click on properties.
Make sure the "Use area code and Dialing Properties" box is unchecked. *Only applies for non 10 digit dialing areas. Some users may need to leave this option checked*
Select the "Networking" tab and make it look like this by selecting
and deselecting the necessary boxes.
Click on the "TCP/IP Settings" box and make sure it looks like this.
Then click ok.