The connect script tells the dialler to "wait until to see a specific text string, then send the text string I tell you to send". You do this once for the userid, once for the password, and that's it. It's a bit slower than standard authenticating via Password Authentication Protocol (PAP), but every now and then, that's just what's needed.
Click on "Directly" and select "Using Connect Script" from the list.
Configure it so that it looks like this:
Any settings in the connect script are supposed to override the username and password settings in the screen in front of them. All the same, it's probably wise to remove both from this screen. Why take chances, eh?
What it is
Procedure