Fax sending program

  • Thread starter Thread starter OgO
  • Start date Start date
I do still want to know what the reason for specifying a maximum
transmission speed was though... Maybe I'm just thinking about
the situation the wrong way or something, but I can't see any
reason for it.
Click to expand...

One word: Interoperability.
 
In alt.comp.freeware, on 22 Jul 2003, announced:
One word: Interoperability.
Click to expand...

And as long as you specify a means for data verification and
error correction, there is no problem with interoperability.
Like I said, I don't know that much about the standards governing
faxes, but if they don't include these then a) I can understand
why they are limited to a single speed (can they be slower?
Surely that would stuff it up too - having one fax sending at
2400 baud and one at 14,400 - just as having one at 14,400 and
56,000 would?) and b) the designers were very shortsighted. In
fact b) anyway...

I have sent / received faxes that had been jammed in the sending
fax and ended up with an unreadable mess, though often it will
give and error and try to resend the fax, though whether that
'error' is allowed to go through would be a matter for the
sending fax as the transmission of data hasn't (necessarily)
started yet, though of course if the sending fax can't even input
the data correctly, then anything after that is moot anyway :)

Thanks for the informative discussion ppl!

Regards

OgO
 
And as long as you specify a means for data verification and
error correction, there is no problem with interoperability.
Like I said, I don't know that much about the standards governing
faxes, but if they don't include these then a) I can understand
why they are limited to a single speed (can they be slower?
Surely that would stuff it up too - having one fax sending at
2400 baud and one at 14,400 - just as having one at 14,400 and
56,000 would?) and b) the designers were very shortsighted. In
fact b) anyway...
Click to expand...

I'm sure they can send slower, for example, if line quality was bad,
but if they send faster, then the machine has to be capable of it, and
if the data chips aren't up to it, then that causes problems with
"handshaking." So an upper limit has to be set. I am betting that back
when the standard was set, 14.4K was considered fast. Modems have
undergone a similar development, and if you know modem history, you
also know that one can't go faster than the modem is rated for, but
one can go slower (there is a lower limit though for many newer
modems, IIRC, it's about 300 baud.)
 
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