Remember, a few minutes spent installing MacSLIP will be offset by years of reliable service. MacSLIP will work with all modems, from 300 baud acoustic couplers to the latest 28.8 kilobps screamers. This will allow data-intensive applications like Mosaic to operate at reasonable speeds. You will, of course, want to make sure that your service provider supports the modem you select. MacSLIP provides initialization strings for most of the more popular modems.
Most modems use very similar strings.
The important things are probably to select hardware handshake and data rather than FAX mode. The factory defaults are probably a good place to start. Look at the initialization string for a similar modem and compare it with your own modem's manual. Although MacSLIP will work with either, for practical purposes you very definitely want a Hardware Handshaking cable. Basically, just follow the manual.