Windows ME Changing to the National dial-up number Select Start -> Settings -> Dial-Up Networking. Figure 1 Right-click on the i.net.au Dial-up icon and select Properties. Note that the icon may be called something different. Figure 2 Replace the old dial-up number from the Telephone number: field with the new number 0198 333 669. If you have any dialing prefixes for disabling of call waiting etc, they can remain in place. Select the OK button. Your new dial-up number is now saved. Figure 3