1.  Install and setup your modem. Instructions can be found in your modem’s manual. Modems are already built-in on most recent Macintosh computers that are capable of running OS X. 2.  Enter network settings. From the Apple Menu select System Controls, and open the Network preference screen. Make sure you have selected built-in modem (or appropriate) as your network interface. Click on the PPP tab. Enter … Continue reading Mac OS X Dial-Up Setup