[hylafax-users] Fax received ok, but sender thinks it failed and resends

["Chris 'Xenon' Hanson" <xenon@xxxxxxxxxxxxxx>]

  I have installed HylaFAX on my Ubuntu 6.06.2 LTS box from Ubuntu's packages (version
reports HylaFAX (tm) Version 4.2.5). I have a Compaq (Actiontec) PM560LKI 56K PCI modem
(manifests as a COM port, ttyS4). Hylafax seems to be working well so far. I have received
a couple of faxes just fine, but there seems to be a prevailing issue. First, I was
getting an error about "failure to receive silence", which I found here:
http://www.hylafax.org/archive/2002-08/msg00260.php

  I did the change recommended there, and that error has gone away.

  However, everyone who has sent me a fax so far has experienced that their fax machine
keeps retrying sending the fax, believing it didn't go through. My end got it ok, it
appears. "Brother" made MFC fax devices sending to me report "Poor line condition" though
the received fax looks great here.

  Here is a log entry for one of these receives. For brevity I've edited out the
repetitive middle parts where it was all the same "RECV received frame number n" with no
errors, and I masked out the phone numbers involved.


Dec 12 16:08:20.22: [16428]: SESSION BEGIN 000000009 1303xxxxxxx
Dec 12 16:08:20.22: [16428]: HylaFAX (tm) Version 4.2.5
Dec 12 16:08:20.22: [16428]: <-- [4:ATA\r]
Dec 12 16:08:26.22: [16428]: --> [7:CONNECT]
Dec 12 16:08:26.22: [16428]: ANSWER: FAX CONNECTION  DEVICE '/dev/ttyS4'
Dec 12 16:08:26.22: [16428]: RECV FAX: begin
Dec 12 16:08:26.22: [16428]: <-- data [32]
Dec 12 16:08:26.22: [16428]: <-- data [2]
Dec 12 16:08:26.24: [16428]: --> [7:CONNECT]
Dec 12 16:08:26.24: [16428]: <-- data [23]
Dec 12 16:08:26.24: [16428]: <-- data [2]
Dec 12 16:08:26.26: [16428]: --> [7:CONNECT]
Dec 12 16:08:26.26: [16428]: <-- data [13]
Dec 12 16:08:26.26: [16428]: <-- data [2]
Dec 12 16:08:28.47: [16428]: --> [2:OK]
Dec 12 16:08:28.47: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:08:28.61: [16428]: --> [7:CONNECT]
Dec 12 16:08:30.28: [16428]: --> [2:OK]
Dec 12 16:08:30.28: [16428]: REMOTE TSI "303-xxx-xxxx"
Dec 12 16:08:30.28: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:08:30.30: [16428]: --> [7:CONNECT]
Dec 12 16:08:30.72: [16428]: --> [2:OK]
Dec 12 16:08:30.72: [16428]: REMOTE wants 14400 bit/s
Dec 12 16:08:30.72: [16428]: REMOTE wants A4 page width (215 mm)
Dec 12 16:08:30.72: [16428]: REMOTE wants unlimited page length
Dec 12 16:08:30.72: [16428]: REMOTE wants 7.7 line/mm
Dec 12 16:08:30.72: [16428]: REMOTE wants 1-D MH
Dec 12 16:08:30.72: [16428]: REMOTE wants T.30 Annex A, 256-byte ECM
Dec 12 16:08:30.72: [16428]: RECV training at v.17 14400 bit/s
Dec 12 16:08:30.72: [16428]: <-- [11:AT+FRM=145\r]
Dec 12 16:08:32.45: [16428]: --> [7:CONNECT]
Dec 12 16:08:33.93: [16428]: RECV: TCF 2672 bytes, 0% non-zero, 2668 zero-run
Dec 12 16:08:33.93: [16428]: --> [10:NO CARRIER]
Dec 12 16:08:33.93: [16428]: DELAY 70 ms
Dec 12 16:08:34.00: [16428]: TRAINING succeeded
Dec 12 16:08:34.00: [16428]: <-- [9:AT+FTH=3\r]
Dec 12 16:08:35.07: [16428]: --> [7:CONNECT]
Dec 12 16:08:35.07: [16428]: <-- data [3]
Dec 12 16:08:35.07: [16428]: <-- data [2]
Dec 12 16:08:35.39: [16428]: --> [2:OK]
Dec 12 16:08:35.39: [16428]: <-- [11:AT+FRM=146\r]
Dec 12 16:08:36.22: [16428]: --> [7:CONNECT]
Dec 12 16:08:36.62: [16428]: RECV received frame number 0
Dec 12 16:08:36.78: [16428]: RECV received frame number 1
Dec 12 16:08:36.94: [16428]: RECV received frame number 2
...
Dec 12 16:08:54.05: [16428]: RECV received frame number 119
Dec 12 16:08:54.20: [16428]: RECV received frame number 120
Dec 12 16:08:54.20: [16428]: RECV received RCP frame
Dec 12 16:08:54.20: [16428]: --> [10:NO CARRIER]
Dec 12 16:08:54.20: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:08:54.34: [16428]: --> [7:CONNECT]
Dec 12 16:08:55.57: [16428]: --> [2:OK]
Dec 12 16:08:55.57: [16428]: RECV recv PPS (partial page signal)
Dec 12 16:08:55.57: [16428]: RECV recv EOP (no more pages or documents)
Dec 12 16:08:55.57: [16428]: RECV received 121 frames of block 1 of page 1
Dec 12 16:08:55.65: [16428]: RECV: 30776 bytes of data, 2164 total lines
Dec 12 16:08:55.65: [16428]: DELAY 70 ms
Dec 12 16:08:55.72: [16428]: <-- [9:AT+FTH=3\r]
Dec 12 16:08:55.72: [16428]: --> [10:NO CARRIER]
Dec 12 16:08:55.72: [16428]: RECV send MCF (message confirmation)
Dec 12 16:08:55.72: [16428]: RECV FAX (000000009): from 303-xxx-xxxx, page 1 in 0:29, INF,
7.7 line/mm, 1-D MH, 14400 bit/s
Dec 12 16:08:55.72: [16428]: RECV FAX (000000009): recvq/fax000000009.tif from
303-xxx-xxxx, route to <unspecified>, 1 pages in 0:29
Dec 12 16:08:55.72: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:08:58.72: [16428]: --> [7:CONNECT]
Dec 12 16:09:00.00: [16428]: --> [2:OK]
Dec 12 16:09:00.00: [16428]: RECV recv PPS (partial page signal)
Dec 12 16:09:00.00: [16428]: DELAY 70 ms
Dec 12 16:09:00.07: [16428]: <-- [9:AT+FTH=3\r]
Dec 12 16:09:00.07: [16428]: --> [10:NO CARRIER]
Dec 12 16:09:00.07: [16428]: RECV send MCF (message confirmation)
Dec 12 16:09:00.07: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:09:03.14: [16428]: --> [7:CONNECT]
Dec 12 16:09:04.42: [16428]: --> [2:OK]
Dec 12 16:09:04.42: [16428]: RECV recv PPS (partial page signal)
Dec 12 16:09:04.42: [16428]: DELAY 70 ms
Dec 12 16:09:04.49: [16428]: <-- [9:AT+FTH=3\r]
Dec 12 16:09:04.49: [16428]: --> [10:NO CARRIER]
Dec 12 16:09:04.49: [16428]: RECV send MCF (message confirmation)
Dec 12 16:09:04.49: [16428]: <-- [9:AT+FRH=3\r]
Dec 12 16:09:07.57: [16428]: --> [7:CONNECT]
Dec 12 16:09:08.74: [16428]: --> [2:OK]
Dec 12 16:09:08.74: [16428]: RECV recv DCN (disconnect)
Dec 12 16:09:08.74: [16428]: RECV FAX: bin/faxrcvd "recvq/fax000000009.tif" "ttyS4"
"000000009" ""
Dec 12 16:09:08.74: [16428]: RECV FAX: end
Dec 12 16:09:08.74: [16428]: SESSION END

  I'm guessing something in the final song & dance goes in the wrong order and leads to
the other end not getting the all-clear, but I don't know diddly about Class 1 fax
protocol, so I'm appealing here for help.

  I can post other config files if you want, but I wasn't sure which was relevant and
didn't want to just spam you with config crap.


  Thanks in advance for any advice.

  (Hylafax is replacing a 1997-vintage "Gateway 2000" Pentium Pro 200 with 64Mb of RAM
that has been running WinNT and WinFax Pro. This machine has reliably run more or less
continuously since its purchase in 1997. It is the oldest running machine in our company,
and deserves retirement with full benefits to a beach in Cabo where it will receive free
umbrella drinks for life. ;)


-- 
Chris 'Xenon' Hanson, omo sanza lettere                  Xenon AlphaPixel.com
PixelSense Landsat processing now available! http://www.alphapixel.com/demos/
"There is no Truth. There is only Perception. To Perceive is to Exist." - Xen


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