[Asterisk-Users] Software FAX Modem--One Last Request For Help

Steven Critchfield critch at basesys.com
Tue Oct 28 12:46:33 MST 2003


On Tue, 2003-10-28 at 14:28, Christian Lademann wrote:
> I would like to try out RxFax as well. Where can I find it?

Try www.oncall.org.
software at ftp://ftp.opencall.org/pub/spandsp
Instructions at http://www.opencall.org/instructions.html

> On Tue, 28 Oct 2003 09:50:50 -0500
> "Johnson, Randy" <rjohnson at Spang.com> wrote:
> 
> > Here's one last plea for help from the list before I give up on the totally
> > cool software FAX modem concept in complete despair (for now, at least,
> > until I have more time to dig into it)....
> > 
> > I am simply not able to successfully receive a FAX no matter what device I
> > transmit from or how I bring the call into Asterisk.  My lastest effort was
> > a call from a Pitney-Bowes FAX machine into an X100P on an analog extension
> > off our Nortel Option 11C PBX.  It's not the Nortel PBX--we have analog
> > modems and faxmodems all over the place here, and even a Lucent Portmaster
> > on a CT1, hanging off that PBX and all work fine.  Besides, I've already
> > tried several different faxmodems plugged directly into an S100U on the *
> > box running RxFax, I've tried sending calls across my T100P, I've tried
> > TDMoE on a lightly-loaded Ethernet segment, I even tried an IAX trunk just
> > for kicks.  None of these configurations gave substantially different
> > results.  The only thing I haven't tried is a TDM400P, because I don't own
> > one.
> > 
> > Anyway, here is my configuration.  Does anyone see ANYTHING that looks
> > amiss?  Do I need SCSI drives?  A P4 CPU?  Patched kernel?  Disabled sound?
> > Enabled sound?  Windows Server 2003? (just checking...)  Does anything jump
> > out?  What's going wrong for me?
> > 
> > Sorry for the long message, and thanks for any pointers anyone can provide,
> > Randy Johnson
> > 
> > Linux:  Linux ucrpsmb01.spang.com 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003
> > i686 i686 i386 GNU/Linux (stock RH 9 kernel)
> > Asterisk:  Asterisk CVS-10/22/03-14:42:42 built by root at ucrpsmb01.spang.com
> > on a i686 running Linux
> > Spandsp:  built from spandsp-20031021.tgz
> > Hardware:  Dell Dimension 4100, IDE HD, PIII-933Mhz, 512MB RAM, 3Com
> > 3C905B-TX NIC
> > 
> > /etc/asterisk/zapata.conf (for X100P):
> > echocancel=no
> > echocancelwhenbridged=no
> > context=demo
> > callerid=asreceived
> > signalling=fxs_ls
> > channel => 1
> > 
> > Cat /proc/interrupts:
> >            CPU0
> >   0:     319219          XT-PIC  timer
> >   1:        106          XT-PIC  keyboard
> >   2:          0          XT-PIC  cascade
> >   3:      26070          XT-PIC  eth0
> >   8:          1          XT-PIC  rtc
> >   9:     565549          XT-PIC  es1371
> >  10:          0          XT-PIC  usb-uhci
> >  11:    2664131          XT-PIC  wcfxo
> >  12:        399          XT-PIC  PS/2 Mouse
> >  14:       9956          XT-PIC  ide0
> >  15:      86218          XT-PIC  ide1
> > NMI:          0
> > ERR:          0
> > 
> > Output on * console when receiving FAX:
> > 
> >     -- Executing Answer("Zap/1-1", "") in new stack
> >     -- Executing RxFAX("Zap/1-1", "/tmp/testfax.tiff") in new stack
> > Changed from phase 0 to 1
> > Start receiving document
> > Changed from phase 1 to 4
> > Sending ident
> > >>> CSI: 40 38 37 36 35 34 33 32 31 20 20 20 20 20 20 20 20 20 20 20 20
> > DIS:
> > Store and forward Internet fax: no
> > Real-time Internet fax: no
> > Preferred octets: 256
> > Can receive fax
> > Data signalling rate: V.29
> > R8x7.7lines/mm and/or 200x200pels/25.4mm OK
> > 2D coding OK
> > Scan line length: 215mm
> > Recording length: A4 (297mm)
> > Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
> > R8x15.4lines/mm OK
> > Inch-based resolution preferred: no
> > Metric-based resolution preferred: no
> > Minimum scan line time for higher resolutions: T15.4 = T7.7
> > >>> DIS: 80 00 c6 f0 80 80 01
> > HDLC underflow in state 9
> > Changed from phase 4 to 3
> > <<< TSI: 43 20 20 20 20 20 20 20 20 33 33 33 30 20 36 39 36 20 32 31 34
> > TSI without final frame tag
> > Remote fax gave TSI as: "412 696 0333        "
> > <<< DCS: 83 00 46 78 00
> > DCS with final frame tag
> > In state 9
> > DCS:
> > Store and forward Internet fax: no
> > Real-time Internet fax: no
> > Can receive fax
> > Data signalling rate: V.29, 9600bps
> > R8x7.7lines/mm and/or 200x200pels/25.4mm OK
> > Scan line length: 215mm
> > Recording length: B4 (364mm)
> > Minimum scan line time: 0ms
> > Get at V.29
> > Changed from phase 3 to 5
> > Fast carrier up
> > Fast carrier down
> > Changed from phase 5 to 4
> > 0 bad bits in trainability test
> > Start rx document - compression 1
> > Start rx page
> > >>> CFR: 84
> > HDLC underflow in state 5
> > Post trainability
> > Changed from phase 4 to 5
> > Fast carrier up
> > Fast carrier down
> > Fast carrier up
> > Fast carrier down
> > Fast carrier up
> > Equalizer state:
> >  -7 (        0.00000,         0.00000) ->         0.00000
> >  -6 (        0.00000,         0.00000) ->         0.00000
> >  -5 (        0.00000,         0.00000) ->         0.00000
> >  -4 (        0.00000,         0.00000) ->         0.00000
> >  -3 (       -0.61756,        -0.03965) ->         0.38295
> >  -2 (        0.23038,         0.68354) ->         0.52031
> >  -1 (       -0.30216,        -0.17821) ->         0.12306
> >   0 (       -2.34509,        -1.86243) ->         8.96806
> >   1 (       -0.30216,        -0.17821) ->         0.12306
> >   2 (        0.23038,         0.68354) ->         0.52031
> >   3 (       -0.61756,        -0.03965) ->         0.38295
> >   4 (        0.00000,         0.00000) ->         0.00000
> >   5 (        0.00000,         0.00000) ->         0.00000
> >   6 (        0.00000,         0.00000) ->         0.00000
> >   7 (        0.00000,         0.00000) ->         0.00000
> > Equalizer state:
> >  -7 (       -0.26413,         0.01494) ->         0.06999
> >  -6 (        0.21546,         0.63969) ->         0.45563
> >  -5 (        0.18946,         0.39304) ->         0.19038
> >  -4 (       -0.30719,        -0.28631) ->         0.17634
> >  -3 (       -1.06797,        -0.37488) ->         1.28108
> >  -2 (        0.33797,         1.14351) ->         1.42183
> >  -1 (        0.20738,         0.77454) ->         0.64292
> >   0 (       -1.96690,        -1.42811) ->         5.90821
> >   1 (       -0.33907,        -0.76008) ->         0.69269
> >   2 (        0.20528,        -0.06647) ->         0.04656
> >   3 (       -0.45137,        -0.01184) ->         0.20388
> >   4 (        0.24556,         0.41087) ->         0.22911
> >   5 (        0.00681,        -0.19050) ->         0.03634
> >   6 (       -0.07823,        -0.72290) ->         0.52871
> >   7 (        0.05250,        -0.20101) ->         0.04316
> > <...more of this...>
> > Fast carrier training failed
> > Equalizer state:
> >  -7 (       -0.04391,        -0.15671) ->         0.02649
> >  -6 (        0.02656,         0.18895) ->         0.03641
> >  -5 (       -0.04580,         0.17080) ->         0.03127
> >  -4 (       -0.02037,        -0.30735) ->         0.09488
> >  -3 (        0.05777,        -0.24864) ->         0.06516
> >  -2 (        0.09588,         0.97571) ->         0.96119
> >  -1 (       -0.65363,        -0.09264) ->         0.43581
> >   0 (       -1.12343,        -2.36205) ->         6.84135
> >   1 (       -0.94664,        -0.85239) ->         1.62270
> >   2 (       -0.01332,         0.46148) ->         0.21314
> >   3 (        0.04255,        -0.31674) ->         0.10214
> >   4 (       -0.04883,        -0.07892) ->         0.00861
> >   5 (       -0.12097,         0.02353) ->         0.01519
> >   6 (        0.07535,         0.07333) ->         0.01106
> >   7 (        0.05340,        -0.04189) ->         0.00461
> > Fast carrier down
> > Fast carrier up
> > Fast carrier down
> > Fast carrier up
> > Fast carrier down
> > Fast carrier up
> > Fast carrier down
> > 
> 
> 
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-- 
Steven Critchfield  <critch at basesys.com>




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