I've been using spandsp and rxfax to receive faxes for a while now and over
the past few days I've looked into the other side of things - txfax. I
can't seem to get it working properly. I've included debug logs below of
both the tx and rx side of things. I've tried three different servers,
asterisk v1.0.6, 1.0.9 and CVS, FC2 and FC4, libtiff 3.5.7 and 3.7.1, TE405P
and TE110P cards, connected to each other via crossover cable (with rxfax as
a fax client), the TE405P connected to itself (ports one and two crossover
cable), and also connected to the PSTN with a hardfax on the other end. I
always get the same errors.
Would be very grateful if someone could give me some pointers or otherwise
shed some light. The logs below are from spandsp 0.0.2 pre18 on CVS Head
txfax talking to 0.0.2 pre18 on v1.0.9 stable rxfax. Doesn't matter though
as the last debug entry is always the same (T4 timeout in state 4)
***** TXFAX Debug *****
-- Executing TxFAX("Zap/1-1", "/tmp/11236686843.tif|caller|debug") in
new stack
Slow carrier up
Urgent handler
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
<<< DIS: 80 00 ce f4 80 80 81 80 80 80 18
DIS with final frame tag
In state 10
DIS:
Prefer 256 octet blocks
Can receive fax
Supported data signalling rates: V.27ter and V.29
R8x7.7lines/mm and/or 200x200pels/25.4mm
2D coding
Scan line length: 215mm
Recording length: Unlimited
Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
R8x15.4lines/mm
Minimum scan line time for higher resolutions: T15.4 = T7.7
North American Letter (215.9mm x 279.4mm)
North American Legal (215.9mm x 355.6mm)
DCS:
Can receive fax
Selected data signalling rate: V.29, 9600bps
2D coding
Scan line length: 215mm
Recording length: A4 (297mm)
Minimum scan line time: 20ms
Minimum scan line time for higher resolutions: T15.4 = T7.7
Start sending document
Start tx document
Changed from phase 2 to 4
DCS: 83 00 86 80 80 80 00
HDLC underflow in state 3
Changed from phase 4 to 6
Changed from phase 6 to 3
Slow carrier up
T4 timeout in state 4
***** End of txfax debug *****
***** RXFAX debug *****
Aug 12 11:00:12 DEBUG[11937]: pbx.c:1274 pbx_extension_helper: Launching
'RxFAX' -- Executing RxFAX("Zap/1-1",
"/var/mbox/msgs/1123815612.2.tif|debug") in new stack
Urgent handler
Aug 12 11:00:12 DEBUG[11937]: channel.c:1752 ast_set_read_format: Set
channel Zap/1-1 to read format slin
Aug 12 11:00:12 DEBUG[11937]: channel.c:1719 ast_set_write_format: Set
channel Zap/1-1 to write format slin
Slow carrier up
Slow carrier down
Aug 12 11:00:12 DEBUG[11937]: chan_zap.c:4138 my_zt_write: Write returned -1
(Resource temporarily unavailable) on channel 1
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
Changed from phase 1 to 4
DIS:
Prefer 256 octet blocks
Can receive fax
Supported data signalling rates: V.27ter and V.29
R8x7.7lines/mm and/or 200x200pels/25.4mm
2D coding
Scan line length: 215mm
Recording length: Unlimited
Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
R8x15.4lines/mm
Minimum scan line time for higher resolutions: T15.4 = T7.7
North American Letter (215.9mm x 279.4mm)
North American Legal (215.9mm x 355.6mm)
DIS: 80 00 ce f4 80 80 81 80 80 80 18
Aug 12 11:00:16 DEBUG[11937]: chan_zap.c:4053 zt_read: DTMF digit: f on
Zap/1-1
Aug 12 11:00:16 DEBUG[11937]: chan_zap.c:4095 zt_read: Fax already handled
HDLC underflow in state 9
Changed from phase 4 to 3
Slow carrier up
Slow carrier down
Slow carrier up
Slow carrier down
Slow carrier up
<<< DCS: 83 00 86 80 80 80 00
DCS with final frame tag
In state 9
DCS:
Can receive fax
Selected data signalling rate: V.29, 9600bps
2D coding
Scan line length: 215mm
Recording length: A4 (297mm)
Minimum scan line time: 20ms
Minimum scan line time for higher resolutions: T15.4 = T7.7
Get at 9600bps, modem 1
Changed from phase 3 to 5
Fast carrier up
Fast carrier down
Fast carrier up
Coarse carrier frequency 1699.90 (68)
Training error 0.294910
Training succeeded (constellation mismatch 0.636352)
Fast carrier trained
Craig
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