To make a new Network Location in Mac OS X 10.3.x...
If the Network preferences have never before been configured, the default Automatic Location will be displayed (see Fig. 2).
Click the Location drop-down option and then click New Location... (see Fig. 3).
Name the new Location and click OK (see Fig. 4). Any name will do, but it's usually best to specify the name of the reseller, or perhaps for laptop users, the physical location e.g. Home, Office, Hotel etc.
Once the new Location has been named, you will need to choose which network interface you would like to configure. Click the Show drop-down box and select the relevant interface (see Fig. 5). For our purposes, the interfaces of interest should be Internal Modem and SpeedTouch USB (the latter will only appear if the SpeedTouch modem has been attached and detected successfully by the OS).
The selected network interface for the new Location should now load, and you can now configure the preferences as usual. The example below shows the configuration of a standard dial-up account (see Fig. 6). Firstly, you need to specify the relevant authentication details in the PPP tab, and then move onto the Modem tab.
The Modem tab should default to the correct modem script. If not, simply select it from the Modem drop-down list (see Fig. 7). If you are not sure which modem script is correct, there are a few generic options that you can try in order to control the modem. These are...
When the selection is complete and you are happy that all components in this network interface have been set up successfully, click the Apply Now button to save the settings. If you do not click Apply Now, you should still be prompted to save any changes that you have made at the point where you exit the Network panel of System Preferences.
After you have created and configured the new network Location, it should appear as per Fig. 8 when next viewed in the Network Status window. Note that a traffic light system is used to denote the current status of each network interface that has been enabled in the current Location. In the example of Fig. 8, a LAN connection is active and online (green) whereas the dial-up connection is active but not online (red). Any other network interfaces (e.g. SpeedTouch USB / Bluetooth etc.) are either inactive or have never been set up on the machine, hence they do not appear in the list.