[asterisk-users] Faxes suddenly failing
David Backeberg
dbackeberg at gmail.com
Thu Sep 1 06:01:30 CDT 2011
That debug looks cool but I have no idea what it means.
If you are using T.38, turn it off, and do audio fax, recorded with MixMonitor.
When you can hear the audio of the fax hopefully you will be able to
tell what's going on, and if you're lucky it's something specific to
the particular kind of testing you are doing.
I don't think it's an exaggeration to say there have been hundreds of
posts over the last few years about broken T.38. Avoid it in favor of
traditional audio faxing. Even if you can control both endpoints,
there's just so much that can go wrong when faxing over voip. If you
need this to be 'reliable faxing', you should seriously consider doing
your faxes over copper. If you cannot afford that, it should be a
top-tier voip provider on a dedicated line, where you will not be
starving for bandwidth, and you should never compress the audio on
those calls.
On Wed, Aug 31, 2011 at 7:27 PM, C F <shmaltz at gmail.com> wrote:
> I think you should change the subject line to:
> Faxes suddenly worked for 2 weeks.
>
> On Wed, Aug 31, 2011 at 3:49 PM, Tim King <tim.compnetwork at gmail.com> wrote:
>> I realize that faxing is not great with voip but here is my confusion. I
>> have been working on a web based fax system for 2 weeks. During this time I
>> have sent over 100 2 page faxes without any errors. Now today as things are
>> finally completed I can not seem to get any fax to go through unless it is a
>> 1 page cover only. Anyone able to tell the issue from this debug output?
>>
>> -- Channel 'SIP/MyVoipProvider-00000046' FAX session '12' started
>> -- FAX handle 0: [ 000.000038 ], STAT_EVT_STRT_RX st: IDLE
>> rt: IDLENSRX
>> -- FAX handle 0: [ 000.000184 ], STAT_EVT_RX_HW_RDY st: WT_RX_HW_RDY
>> rt: RRDYNHRY
>> -- FAX handle 0: [ 000.000504 ], P30EVN_RECEIVE_STARTED
>> -- FAX handle 0: [ 000.000538 ], STAT_INFO_CSI
>> -- FAX handle 0: [ 000.000568 ], STAT_INFO_DIS
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 000.091837 ], stack sent 5 frames (100 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 000.160248 ], stack sent 3 frames (60 ms) of silence.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 000.960201 ], channel sent 48 frames (960 ms) of silence.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 000.979464 ], channel sent 1 frames (20 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 003.157848 ], stack sent 150 frames (3000 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 003.219814 ], stack sent 3 frames (60 ms) of silence.
>> -- FAX handle 0: [ 005.240927 ], STAT_EVT_TX_V21_DONE st: WT_DIS_RSP
>> rt: WDSRNT21
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 005.579811 ], stack sent 118 frames (2360 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 006.481179 ], channel sent 275 frames (5500 ms) of silence.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 007.801045 ], channel sent 66 frames (1320 ms) of energy.
>> -- FAX handle 0: [ 007.800554 ], STAT_FRM_CRP
>> -- FAX handle 0: [ 007.800586 ], STAT_EVT_CRP st: WT_DIS_RSP
>> rt: XXXXNT4X
>> -- FAX handle 0: [ 007.800602 ], STAT_EVT_FSC_ERR st: WT_DIS_RSP
>> rt: UNEXPECT
>> -- FAX handle 0: [ 011.012832 ], STAT_EVT_RX_TRN_END st: WT_DIS_RSP
>> rt: RXXXNFRX
>> -- FAX handle 0: [ 011.012878 ], STAT_INFO_CSI
>> -- FAX handle 0: [ 011.012905 ], STAT_INFO_DIS
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 011.152812 ], stack sent 279 frames (5580 ms) of silence.
>> -- FAX handle 0: [ 013.179561 ], STAT_EVT_TX_V21_DONE st: WT_DIS_RSP
>> rt: WDSRNT21
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 013.471827 ], stack sent 116 frames (2320 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 014.260642 ], channel sent 323 frames (6460 ms) of silence.
>> -- FAX handle 0: [ 016.119786 ], STAT_INFO_TSI
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 016.460661 ], channel sent 110 frames (2200 ms) of energy.
>> -- FAX handle 0: [ 016.460394 ], STAT_INFO_DCS
>> -- FAX handle 0: [ 016.460431 ], STAT_EVT_DCS st: WT_DIS_RSP
>> rt: WDSRNDCS
>> -- FAX handle 0: [ 016.460449 ], STAT_NEG_V17_14400
>> -- FAX handle 0: [ 016.460464 ], STAT_NEG_MH
>> -- FAX handle 0: [ 016.460476 ], STAT_NEG_A4
>> -- FAX handle 0: [ 016.460488 ], STAT_NEG_RES_204x196
>> -- FAX handle 0: [ 016.460500 ], STAT_NEG_ECM
>> -- FAX handle 0: [ 016.460514 ], STAT_EVT_SW_ECM st: WT_DIS_RSP
>> rt: WDSRNSWE
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 016.540315 ], channel sent 4 frames (80 ms) of silence.
>> -- FAX handle 0: [ 016.800906 ], STAT_EVT_RX_IMG_STRT st: RCV_ECM_TRN
>> rt: UNEXPECT
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 019.700543 ], channel sent 158 frames (3160 ms) of energy.
>> -- FAX handle 0: [ 019.759984 ], STAT_EVT_RX_TRN_END st: RCV_ECM_TRN
>> rt: RTCFNERT
>> -- FAX handle 0: [ 019.760071 ], STAT_FRM_CFR
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 019.912812 ], stack sent 322 frames (6440 ms) of silence.
>> -- FAX handle 0: [ 020.957834 ], STAT_EVT_TX_V21_DONE st: RCV_ECM_STRT
>> rt: RECMNT21
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 021.278809 ], stack sent 68 frames (1360 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 022.261160 ], channel sent 128 frames (2560 ms) of silence.
>> -- FAX handle 0: [ 022.517880 ], STAT_EVT_RX_IMG_STRT st: RCV_ECM_STRT
>> rt: RECMNSRI
>> -- FAX handle 0: [ 022.517982 ], P30EVN_PHASE_C
>> -- FAX handle 0: [ 022.517998 ], P30EVN_DOC_START
>> -- FAX handle 0: [ 022.518429 ], P30EVN_PAGE_START
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 031.102000 ], channel sent 442 frames (8840 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 031.160415 ], channel sent 3 frames (60 ms) of silence.
>> -- FAX handle 0: [ 031.160196 ], STAT_EVT_RX_IMG_END st: RCV_ECM
>> rt: RECMNERI
>> -- FAX handle 0: [ 031.180491 ], STAT_EVT_RX_IMG_STRT st: F_END_ECM
>> rt: UNEXPECT
>> -- FAX handle 0: [ 031.180579 ], STAT_EVT_RX_IMG_END st: F_END_ECM
>> rt: UNEXPECT
>> -- FAX handle 0: [ 032.580514 ], STAT_INFO_PPS_MPS
>> -- FAX handle 0: [ 032.580601 ], STAT_EVT_PPS_MPS st: F_END_ECM
>> rt: FEEMNP_M
>> -- FAX handle 0: [ 032.580625 ], P30EVN_PAGE_END
>> -- FAX handle 0: [ 032.580639 ], STAT_FRM_MCF
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 032.601247 ], channel sent 72 frames (1440 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 032.740976 ], stack sent 573 frames (11460 ms) of silence.
>> -- FAX handle 0: [ 033.771842 ], STAT_EVT_TX_V21_DONE st: RCV_ECM_STRT
>> rt: RECMNT21
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 034.094801 ], stack sent 68 frames (1360 ms) of energy.
>> > Channel 'SIP/MyVoipProvider-00000046' fax session '12', [
>> 035.101829 ], channel sent 125 frames (2500 ms) of silence.
>> -- FAX handle 0: [ 035.353869 ], STAT_EVT_RX_IMG_STRT st: RCV_ECM_STRT
>> rt: RECMNSRI
>> -- FAX handle 0: [ 035.353970 ], P30EVN_PHASE_C
>> -- FAX handle 0: [ 035.353997 ], STAT_EVT_GO_TO_B st: RCV_ECM_STRT
>> rt: XXXXNGOB
>> -- FAX handle 0: [ 037.861871 ], STAT_EVT_HW_CLOSE st: WT_HW_CLS
>> rt: WCLSNCLS
>> -- FAX handle 0: [ 037.862008 ], P30EVN_DOC_END
>> -- FAX handle 0: [ 037.862024 ], STAT_SES_COMPLETE
>> -- FAX handle 0: [ 037.862038 ], P30EVN_COMPLETE
>> -- Channel 'SIP/MyVoipProvider-00000046' FAX session '12' is complete,
>> result: 'FAILED' (FAX_FAILURE_PARTIAL), error: 'ECM_FAIL', pages: 1,
>> resolution: '204x196', transfer rate: '14400', remoteSID: '16165551212'
>>
>>
>> --
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>
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