(PMOD) Hayes Smartmodem 2400B

Bud Bennett (bennetb@cadvision.com)
Mon, 12 Jul 1999 09:54:44 -0600

> Subject: Re: (PMOD) Hayes Smartmodem 2400B

Quoted text below..

My.. That's an old modem. I have one of those collecting dust in my
closet.

The biggest problem with 2400 BPS modems is that they have two
fallacies:

1. A good number of 2400 BPS modems out there didn't have NVRAM to
store
the settings. I seem to recall (Back in my BBS'ing days) having to
plunk in a 30
charactor init string to get my old 2400 BPS modem working
properly. A "Generic"
2400 BPS modem driver in Win95/98 won't get the job done and
putting in a huge
whack of extra settings requires a lot of manual reading in order
to get the modem
to behave properly. Factory settings on those modems never worked
right anyway.
(At least in my experience.)

2. A good portion of internal 300-2400 BPS modems didn't use flow
control properly.
The externals were not as much of a problem since that's RS-232(c)
spec. Some 2400
BPS modems will repeatedly drop a connection if it's buffer
overflows and still
continue to get data. Replacing the modem or dropping the port
speed is the only
way to really fix this.

Good luck!

----
> On Sun, 11 Jul 1999, Doug Hardie wrote:

>> :I have a user with a Hayes Smartmodem 2400B that having trouble
keeping a
>> :connection open. I have not been able to find any suggestions.

> I have a suggestion. Tell him to get a new modem. I bet someone
would GIVE
> him a 14400 if he asked.

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Bud Bennett                              CADVision Development 
Corporation
bennetb@cadvision.com                    Suite 1810, 300 5th Avenue 
S.W.
Internal Systems,                        Calgary, AB, Canada       T2P 
3C4
Modem Network Administrator              Phone: (403) 777-1300
http://www.cadvision.com                 Fax:   (403) 777-1319
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