Thought all of this would be as simple as the answer given to my earlier question, "disable internal modem," but it's not. Here's the status of my difficulties.
With my PowerBook running System 7.1 (I don't want to upgrade if possible), FreePPP apparently doesn't give me the option of deselecting my old internal modem in favor of a new external one. On advice I've installed MacPPP 2.0.1 (newer 2.5.3 isn't supported by 7.1), only to find that it, too, doesn't seem to give me this option.
MacPPP's readme states:
The Port Name pop-up menu allows you to select the modem port, printer port, or any other serial ports registered with the Communications Toolbox. (The Communications Toolbox is included with System 7.0....) On some Macintoshes with an internal modem, you'll only be presented with an "internal modem" option on the pop-up menu. ... The default option is the modem port. ...
FreePPP gives me the same options as does this version of MacPPP--modem port and printer port--and has always accessed my internal modem via this "modem port" setting. However, when I connect my new external modem to the modem port in the rear, neither FreePPP nor MacPPP can find it to dial out.
Starting MacPPP, I'm presented with two dialog boxes, the first saying "MacPPP status: Entering Terminal Mode" (sounds ominous, doesn't it?), the second saying "PPP terminal session" followed by a large empty box and an "OK" button. It almost looks like I should be highlighting something in that box, but when I just click OK, it disappears and the first dialog box initially changes to "...PPP Phase: Establishment," then "Link Dead" (really ominous). There's just a bit of crackle from the internal modem, so I can guess what's happening.
Ja, zo, what should I try now to get this new, faster modem up and working for me? (Please have the curtesy to follow up on this question daily or so till I'm set.) Thanks.