Bruce Toback wrote:
>
> Jeff Kell writes:
>
> >HPRC also suggested setting modem behavior to "DCE high" but I didn't
> >bother trying that.
>
> That was also suggested as a woraround for one of my clients' DTC
> problems, but there's a catch: the system doesn't always recognize when
> the modem on a "DCE High" port hangs up, so if the caller hangs up
> without logging off, someone else can dial in and get that user's
> session.

I believe DCE High was designed for connections to a data switch, not a
modem.  PBX/data switchs turn around lines much faster than the typical
modem.  My advise is to also be sure to use high quality cabling, as short
as practical, with good (same?) grounding on both the DTC and the modem.

I believe the DTC documentation (or someother HP document from around
1991) had a good explanation of the details of the DCE High behavior and
when it would be needed.

>
> -- Bruce
>
> --------------------------------------------------------------------------
> Bruce Toback    Tel: (602) 996-8601| My candle burns at both ends;
> OPT, Inc.            (800) 858-4507| It will not last the night;
> 11801 N. Tatum Blvd. Ste. 142      | But ah, my foes, and oh, my friends -
> Phoenix AZ 85028                   | It gives a lovely light.
> btoback AT optc.com                |     -- Edna St. Vincent Millay
> Mail sent to [log in to unmask] will be inspected for a
> fee of US$250. Mailing to said address constitutes agreement to
> pay, including collection costs.

--
Richard Gambrell
Database Administrator and Consultant to Computing Services at
** UTC business contacts:
  University of Tennessee at Chattanooga
  113 Hunter Hall, Dept. 4454
  615 McCallie Ave., Chattanooga, TN 37403-2598
  fax: 423-755-4025
  phone: 423-755-4551
  email: [log in to unmask]
** other business or private contacts:
  voice mail/phone: 423-874-0261
  email: [log in to unmask]