KB 502
From SWCP Support Wiki
How do I set up a dial up connection under MacOS X?
Go to System Preferences, select Network. On the Location pull-down, select New Location, and name it "Home Dialup" for example.
The Show pull-down should have your modem selected.
On the TCP/IP tab:
Select Configure: Using PPP
On the PPP tab:
Service Provider SWCP
Telephone Number 938-1410
Alternate Number 998-5999
Account Name Your "P" account user name
Account Password Your "P" account password
Click the PPP Options button. Turn on the "Connect automatically..." option, click OK.
Click the Apply Now button.
To dial manually, start Internet Connect (in the Applications folder).