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Re: [hylafax-users] High Error rates
On 2004.07.29 11:01 Stephen Carville wrote:
Damn! I sent the wrong transaction file. Here is the correct one:
This transmission created a two page fax; the first page is fine but
the
second is just a bunch of black band in the top one and one-half inch
of the
page.
Jul 29 07:00:29.20: [25453]: RECV recv MPS (more pages, same document)
Jul 29 07:00:29.20: [25453]: <-- [9:AT+FRS=7\r]
Jul 29 07:00:29.32: [25453]: --> [2:OK]
Jul 29 07:00:29.32: [25453]: <-- [9:AT+FTH=3\r]
Jul 29 07:00:29.45: [25453]: --> [7:CONNECT]
Jul 29 07:00:29.45: [25453]: <-- data [3]
Jul 29 07:00:29.45: [25453]: <-- data [2]
Jul 29 07:00:30.66: [25453]: --> [2:OK]
Jul 29 07:00:30.66: [25453]: RECV send RTN (retrain negative)
Jul 29 07:00:30.66: [25453]: <-- [9:AT+FRH=3\r]
Jul 29 07:00:31.86: [25453]: --> [7:CONNECT]
Jul 29 07:00:31.99: [25453]: --> [2:OK]
Jul 29 07:00:31.99: [25453]: RECV recv DCN
Did the sender call back and retransmit that page and the following
ones?
Many senders, upon receiving RTN (means that we want them to retransmit
the page), will disconnect (DCN) and then call back rather than just
returning to phase B and retraining.
If you really (and I mean *really*) want to know a lot about weird
things that fax machines do with the RTN signal, then search the
archives (including -devel) for discussions about RTN between Dmitry
Bely and Harald Pollack. Ultimately I've concluded that fax machines
will treat RTN in any way they feel like it, and we have to just
tolerate their disregard for the specification.
Now, if the sender didn't call back, then do you know why? If the
sender did call back but didn't resend the corrupted page, then there
is a problem that needs to be addressed.
Lee.
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