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RTN problem
Hi,
I am using HylaFAX v4.0pl2 under SuSE Linux 5.3. Modem is a
Zyxel U1496E+ with firmware 6.19.
When sending to some fax machines, an RTN (retrain negative) error
occurs and the first page will be repeated endlessly. In spite of
this, the received page appears to be complete and of perfect quality.
I found question Q160 in the FAQ list which seems to describe the same
problem. However, I think the explanation given there (bad quality of
phone line) is very unlikely in my case: The problem even occurs when
sending to my own Siemens Telfax 840AB. Both modem and fax machine are
connected locally via a PABX (Ackermann Euracom 180).
I also tried to reduce the bitrate but the problem still occurs at
2400 bit/s.
Here is an example logfile:
Nov 06 17:07:18.12: [ 4315]: SESSION BEGIN 00000002 49613115
Nov 06 17:07:18.12: [ 4315]: SEND FAX: JOB 1 DEST *15 COMMID 00000002
Nov 06 17:07:18.12: [ 4315]: MODEM set DTR OFF
Nov 06 17:07:18.12: [ 4315]: DELAY 2600 ms
Nov 06 17:07:20.73: [ 4315]: MODEM set DTR ON
Nov 06 17:07:20.73: [ 4315]: MODEM set baud rate: 38400 baud, input flow RTS/CTS, output flow RTS/CTS
Nov 06 17:07:20.73: [ 4315]: MODEM flush i/o
Nov 06 17:07:20.73: [ 4315]: <-- [44:AT&B1&N0&S0*F0S18=2S38.3=1S39=0E0V1Q0S0=0H0\r]
Nov 06 17:07:20.95: [ 4315]: --> [2:OK]
Nov 06 17:07:20.95: [ 4315]: <-- [21:ATS8=2S7=60&H3&D2&C1\r]
Nov 06 17:07:20.97: [ 4315]: --> [2:OK]
Nov 06 17:07:20.97: [ 4315]: <-- [14:AT+FCLASS=2.0\r]
Nov 06 17:07:21.10: [ 4315]: --> [2:OK]
Nov 06 17:07:21.10: [ 4315]: <-- [9:AT+FLO=2\r]
Nov 06 17:07:21.11: [ 4315]: --> [2:OK]
Nov 06 17:07:21.11: [ 4315]: <-- [9:AT+FPP=0\r]
Nov 06 17:07:21.12: [ 4315]: --> [2:OK]
Nov 06 17:07:21.12: [ 4315]: <-- [9:AT+FBO=0\r]
Nov 06 17:07:21.13: [ 4315]: --> [2:OK]
Nov 06 17:07:21.13: [ 4315]: <-- [10:AT+FCT=30\r]
Nov 06 17:07:21.14: [ 4315]: --> [2:OK]
Nov 06 17:07:21.14: [ 4315]: <-- [15:AT+FNR=1,1,1,1\r]
Nov 06 17:07:21.15: [ 4315]: --> [2:OK]
Nov 06 17:07:21.15: [ 4315]: <-- [9:AT+FIE=0\r]
Nov 06 17:07:21.16: [ 4315]: --> [2:OK]
Nov 06 17:07:21.16: [ 4315]: <-- [23:AT+FCC=1,5,2,2,1,0,0,0\r]
Nov 06 17:07:21.18: [ 4315]: --> [2:OK]
Nov 06 17:07:21.18: [ 4315]: <-- [7:ATM1L3\r]
Nov 06 17:07:21.19: [ 4315]: --> [2:OK]
Nov 06 17:07:21.19: [ 4315]: MODEM input buffering enabled
Nov 06 17:07:21.19: [ 4315]: <-- [14:AT+FCLASS=2.0\r]
Nov 06 17:07:21.42: [ 4315]: --> [2:OK]
Nov 06 17:07:21.42: [ 4315]: <-- [9:AT+FLO=2\r]
Nov 06 17:07:21.53: [ 4315]: --> [2:OK]
Nov 06 17:07:21.53: [ 4315]: <-- [9:AT+FPP=0\r]
Nov 06 17:07:21.64: [ 4315]: --> [2:OK]
Nov 06 17:07:21.64: [ 4315]: <-- [9:AT+FBO=0\r]
Nov 06 17:07:21.75: [ 4315]: --> [2:OK]
Nov 06 17:07:21.75: [ 4315]: <-- [10:AT+FCT=30\r]
Nov 06 17:07:21.86: [ 4315]: --> [2:OK]
Nov 06 17:07:21.86: [ 4315]: <-- [15:AT+FNR=1,1,1,1\r]
Nov 06 17:07:21.97: [ 4315]: --> [2:OK]
Nov 06 17:07:21.97: [ 4315]: <-- [9:AT+FIE=0\r]
Nov 06 17:07:22.08: [ 4315]: --> [2:OK]
Nov 06 17:07:22.08: [ 4315]: <-- [23:AT+FCC=1,5,2,2,1,0,0,0\r]
Nov 06 17:07:22.20: [ 4315]: --> [2:OK]
Nov 06 17:07:22.20: [ 4315]: <-- [28:AT+FLI="Ulrich Mueller"\r]
Nov 06 17:07:22.32: [ 4315]: --> [2:OK]
Nov 06 17:07:22.34: [ 4315]: DIAL *15
Nov 06 17:07:22.34: [ 4315]: <-- [8:ATDT*15\r]
Nov 06 17:07:55.28: [ 4315]: --> [4:+FCO]
Nov 06 17:07:55.28: [ 4315]: --> [28:+FNF:BC 53 01 10 12 00 01 ]
Nov 06 17:07:55.28: [ 4315]: REMOTE NSF "BC 53 01 10 12 00 01"
Nov 06 17:07:55.28: [ 4315]: --> [26:+FCI: +49 6131 555555 ]
Nov 06 17:07:55.28: [ 4315]: REMOTE CSI "+49 6131 555555"
Nov 06 17:07:55.28: [ 4315]: --> [20:+FIS:1,3,0,2,1,0,0,4]
Nov 06 17:07:55.28: [ 4315]: --> [2:OK]
Nov 06 17:07:55.28: [ 4315]: REMOTE best rate 9600 bit/s
Nov 06 17:07:55.28: [ 4315]: REMOTE max page width 1728 pixels in 215 mm
Nov 06 17:07:55.28: [ 4315]: REMOTE max unlimited page length
Nov 06 17:07:55.28: [ 4315]: REMOTE best vres 7.7 line/mm
Nov 06 17:07:55.28: [ 4315]: REMOTE best format 2-D MR
Nov 06 17:07:55.28: [ 4315]: REMOTE best 20 ms, 10 ms/scanline
Nov 06 17:07:55.28: [ 4315]: USE 9600 bit/s
Nov 06 17:07:55.28: [ 4315]: USE 20 ms, 10 ms/scanline
Nov 06 17:07:55.28: [ 4315]: SEND file "docq/doc1.cover;00"
Nov 06 17:07:55.29: [ 4315]: USE page width 1728 pixels in 215 mm
Nov 06 17:07:55.29: [ 4315]: USE unlimited page length
Nov 06 17:07:55.29: [ 4315]: USE 3.85 line/mm
Nov 06 17:07:55.29: [ 4315]: USE 1-D MR
Nov 06 17:07:55.29: [ 4315]: <-- [23:AT+FIS=0,3,0,2,0,0,0,4\r]
Nov 06 17:07:55.40: [ 4315]: --> [2:OK]
Nov 06 17:07:55.40: [ 4315]: <-- [7:AT+FDT\r]
Nov 06 17:08:01.24: [ 4315]: --> [20:+FCS:0,3,0,2,0,0,0,5]
Nov 06 17:08:01.24: [ 4315]: --> [7:CONNECT]
Nov 06 17:08:01.24: [ 4315]: SEND begin page
Nov 06 17:08:01.25: [ 4315]: <-- data [1029]
[...]
Nov 06 17:08:02.24: [ 4315]: <-- data [874]
Nov 06 17:08:03.84: [ 4315]: SENT 8032 bytes of data
Nov 06 17:08:03.84: [ 4315]: SEND 1D RTC
Nov 06 17:08:03.84: [ 4315]: <-- data [9]
Nov 06 17:08:03.84: [ 4315]: SEND end page
Nov 06 17:08:03.84: [ 4315]: SEND send MPS (more pages, same document)
Nov 06 17:08:03.84: [ 4315]: <-- data [2]
Nov 06 17:08:23.47: [ 4315]: --> [5:ERROR]
Nov 06 17:08:23.47: [ 4315]: SEND recv RTN (retrain negative)
Nov 06 17:08:23.47: [ 4315]: <-- [7:AT+FDT\r]
Nov 06 17:08:29.31: [ 4315]: --> [20:+FCS:0,3,0,2,0,0,0,5]
Nov 06 17:08:29.31: [ 4315]: --> [7:CONNECT]
Nov 06 17:08:29.31: [ 4315]: SEND begin page
Nov 06 17:08:29.31: [ 4315]: <-- data [1029]
[...]
Nov 06 17:08:30.31: [ 4315]: <-- data [874]
Nov 06 17:08:31.91: [ 4315]: SENT 8032 bytes of data
Nov 06 17:08:31.91: [ 4315]: SEND 1D RTC
Nov 06 17:08:31.91: [ 4315]: <-- data [9]
Nov 06 17:08:31.91: [ 4315]: SEND end page
Nov 06 17:08:31.91: [ 4315]: SEND send MPS (more pages, same document)
Nov 06 17:08:31.91: [ 4315]: <-- data [2]
Nov 06 17:08:51.53: [ 4315]: --> [5:ERROR]
Nov 06 17:08:51.53: [ 4315]: SEND recv RTN (retrain negative)
[and same sequence repeated again]
--
Ulrich Mueller, Inst. fuer Kernphysik, Univ. Mainz, D-55099 Mainz
ulm@kph.uni-mainz.de, Phone +49 6131 39-5812, Fax -2964
