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- Path: news.infoserve.net!usenet
- From: davesch@unix.infoserve.net (David Schick)
- Newsgroups: comp.dcom.modems
- Subject: Re: USR 33.6 Data/Fax: Won't work with WinFax
- Date: Sat, 16 Mar 1996 01:47:27 GMT
- Message-ID: <314a157c.230079747@news.infoserve.net>
- References: <4hqfgu$gq0@fountain.mindlink.net> <4i1mn2$28v@tracy.protocom.com> <klein-1103961224090001@unix-ppp3.chromatic.com> <3147A953.6F00@inforamp.net>
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-
- Thomas Malcolmson <tmm@inforamp.net> wrote:
-
- >My experience with USR & WinFax suggests that the CNG tone requirement
- >is not the problem.
- >
- >I have used WinFax 3, 4, & 7, with many 14.4 & 28.8 USR modems and have
- >always had intermittant problems sending and receiving. My problems are
- >very inconsistent: some destinations might give me more trouble than
- >others, but even the worst work sometimes, and even the best don't at
- >other times. This result seems incompatible with the CNG tone problem.
- >
- >I have spent a lot of time on this problem over the last few years, and
- >am very frustrated (I won't get into why I have had to stick with USR -
- >I'll just say that I recommend them for data, but not for faxing or
- >support).
-
- Have you tried limiting the fax transmission speed to 9600?
-
- I have had a SupraFaxModem 14.4 for about three years and have never
- been able to send a 14.4 fax to a long distance location. Local
- calls, or at 9600 or recieving either 14.4 and 9600 faxes work 90% of
- the time. Given that this was one of the first 14.4 faxmodems on the
- market its not too suprising.
-
- The problem is difficult to pin down because of so many variables: the
- UART, the OS, the fax software. I've used Winfax Lite,3.0, 4.0,
- FaxMail, the ZetaFax demo, and several others under Windows NT.
-
- I've been able to get around the problem of faxing to long distance
- 14.4 machines by using Class 1 which forces sending the fax at 9600.
- Setting maximum transmission rates using Class 2 seem to be ignored by
- my modem.
-
- Anyways, my point is that maybe its not just the USR sportster that
- has a problem with faxing but perhaps something common to faxmodems.
- The Rockwell chipset perhaps? Thought I read somewhere that the
- sportster doesn't use the Rockwell.
-
- Perhaps one thing to try is forcing the speed down to 9600 to see if
- some of the problems disappear. Although this wouldn't fix the
- problem with negotiation when recieving a fax.
-
- Dave.
-
- >
- >My best guess is that the fax hardware in USR modems is just not up to
- >the sensitive timing requirements of faxing. The most common error I
- >get is 'unable to negogiate connection or train.'
- >
- >I'll put together a list of all the init strings, tweaks, and
- >modifications that have helped (but only a bit) me recently, and I would
- >be very grateful if anyone could suggest something that would help me
- >really solve this problem
- >
- >Tom
- >
-
- David Schick, davesch@unix.infoserve.net Vancouver, B.C. Canada,
-
-