Modem AT Commands With Small Biz Macintosh 4400,6500 (5/97)

I purchased both the Small Business Macintosh 6500/250 (M5612LL/A) and Small Business Macintosh 4400/200 (M5616LL/A) computers with the built-in GeoPort modem. I would like to be able to verify various modem settings using standard AT commands. With previous consumer versions of the Power Macintosh/Performa computers we used the communications capabilities of ClarisWorks to open a connection to the modem using the serial communications tool. How can I verify various modem settings using standard AT commands with these computers?
The Small Business Macintosh 4400/6500 computers ship with the Apple Internet Connection Kit version 1.2. Part of this kit is the Config PPP control panel. Users can find this control panel by following this path on their hard disk:

Hard Disk:Applications:Internet Utilities:Config PPP:Config PPP

By opening a Terminal Window with this control panel, users can issue standard AT commands to their built-in GeoPort modem. To enter standard AT commands, users can follow the steps below:
Published Date: Feb 18, 2012