From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows 98; Win 9x 4.90)


Many errors are logged in the messages log.  ie: "mgetty[2511]: waiting 
for "OK": no such file or 
directory"

Reproducible: Always
Steps to Reproduce:
1.Setup Mgetty
2.Dial in.
3.Watch logs.
	

Actual Results:  The server hangs up on the client.

Expected Results:  The logs should show the modem picking up, a user 
logging in or pppd starting.

This is the RedHat 7.0 kernel, I had similar results upgrading Redhat 6.2 
with the latest mgetty update.  I was able to go back to mgetty from the 
stock 6.2 cd.  I tried to install the version of mgetty from 6.2 on my 7.0 
box but it would not install.