1) Double click on the My Computer icon.2) Double click on the Dial-Up
Networking icon.
3) Double click on the connection icon to VCS.
4) Click on the Dial Properties button.
5) In the middle section labelled "How I dial from this location," put a
check in front of the line that reads "This location has call waiting."
6) In the box next to "To disable it, dial:," set it to 70#, (for tone
dialing) and click on the OK button.
Now each time you dial to VCS, Call Waiting will be disabled.