If you do not have Remote Access installed then the chances are you are using an older Mac and/or version of the MacOS. In this case, please contact tech support.
Open the Modem control panel.
Ensure that you have the correct port selected (Connect via). For iMac, iBook and G3/G4 models there is most likely only to be one option - Internal Modem.
Choose the correct modem script from the Modem: pop-up list. If your modem model isn't in the list then try one of the Apple or Hayes Compatible modem scripts.
Open the TCP/IP control panel and set everything up as shown.
Open the Remote Access control panel (replace nxxx with your dial-up username).
Click on the Options... button and ensure that you have everything set as shown.
Disconnect if idle for ... can be modified if you so wish, but 10 mins inactivity is quite sufficient.
To initiate a dial-up connection all you now need to do is to click Connect in either the Remote Access control
panel, the Remote Access control strip module or Remote Access Status application.