Hangup doesn't kill login

[Jay A. Snyder]

>In article <69 at gdx.UUCP> jay at gdx.UUCP (Jay A. Snyder) writes:
>%
>%When a serial port login, either modem or direct connect hangs up, the
>%login hangs around for the next caller.  A HUP signal doesn't seem to
>%be generated.
>%
>
>Set your stty settings to : stty hupcl < /dev/tty*
>

I already did.  The programs are not even getting the hangup signal.
If I user is in VP/ix and hangs up, the VP/ix remains, yet a kill -1
(hangup signal) on the process makes it exit.

Let me rephrase my question:
  Hangup from modem doesn't generate HANGUP signal -- HELP!

J