From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529

Description of problem:
When configuring a new modem connection, a warning dialog incorrectly claims "No
modem was found on your system", even though /etc/sysconfig/hwconf correctly
shows the USB modem, and kernel module acm is loaded, and minicom is able to
find and talk to the modem.

Version-Release number of selected component (if applicable):
redhat-config-network-1.2.13-1

How reproducible:
Always

Steps to Reproduce:
0.Dell Inspiron 4100 laptop with Zoom 2986L USB modem plugged in and turnd on
before boot.  Kudzu recognizes modem, and Configures it.
1.RedHat > System Settings > Network
2.New > Modem connection
3.
    

Actual Results:  A warning dialog box appears, titled redhat-config-network,
with message "No modem was found on your system".

Expected Results:  USB modem should be found, and device /dev/input/ttyACM0
should be preselected.

Additional info:

Similar to bug 67275 (2002-06-21): one year, two major OS revisions, no progress.

Workaround: ignore the warning, select /dev/input/ttyACM0  as device.