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Re: [hylafax-users] Failed to properly detect high-speed data carrier

Kimble,

I agree with your advice.

However, in this case I see an opportunity to investigate a possibility of improving HylaFAX. On the systems I administer I see a little less than 1% reception errors. Half of those are due to "failed to properly detect high-speed data carrier" errors that look rather similar to the log that John has posted. I've investigated these problems on one production server before, but I had to test long, long periods of "random" and "occassional" errors to try to determine what was going on, and in the end I found no useful result. If John has a scenario that can reproduce the problem, then maybe I can find an answer more easily this way.

Thanks,

Lee.


On 2005.02.03 15:10 Kimble Young wrote:
John,

Ever considered that it might be cheaper both time and money wise to just replace the one dodgy fax machine rather than pull your hair out. You did mention it was a remote office so I assume you have some say in the matter.

Regards,

Kimble Young

John Kosta wrote:
All,

I am sorry to post this problem to the list. I am getting the error "Failed to properly detect high-speed data carrier" with a just purchased Multitech MT5600ZDXV after also receiving the error with a Multitech MT2834ZDXb (Class 2 only). I have read through the archives and tried several of the suggestions therein, but continue to experience this problem.

It seems I always get this error from the same fax machine, one in use in one of our remote offices (Brother Model MFC 4800).

Though we receive approximately 100 faxes per day on the Multitech modem, we get errors on every single fax from the Brother fax machine, and occasionally see this error from other numbers (albeit much less often.)

I wish I knew what I was looking at in the log, but I can't make sense of it.

After some troubleshooting on my own, I have gone back to using a vanilla config file in hopes to not muddy the waters should I get any suggestions from the experts on this list.

I am using Hylfax version 4.2.1 under Slackware Linux 10.0.0 with gcc version 3.3.4. Mulitech MT5600ZDXV Firmware revision V2.300C-V90_2M_DLS (Conexant)

Modem in Class 1 (I have not tried this modem in Class 2 but it is supported)

I believe I am using Libtiff 3.6.0, but see these files on the box (so I am not really sure):

/usr/lib/libtiff.so.3.6.1
/usr/local/lib/libtiff.so.3.6.0

Incidentally, we send about 100 faxes per day with this same server with no problems using WHFC on Windows 2000 clients (using a different modem).

I really appreciate you all reading this long message and would be thankful for any suggestions anyone might care to make.

--John Kosta

To my inexperienced eyes, it looks like the end of the log file has the important information on this failure. Here it is:

Feb 03 13:57:42.58: [ 2861]: HDLC frame not byte-oriented. Trailing byte: 0
Feb 03 13:57:42.83: [ 2861]: --> HDLC<262:FF C0 60 22 E6 79 3F 8D 75 55 2E 34 88 F0 23 D0 21 DA 23 22 EA 9A 08 2D 0B EF 6C 43 36 07 30 80 81 C1 17 EE 7A 14 39 54 2A 2D 4D 30 E7 87 28 70 A6 1D 61 15 1B 4D 3E D6 E8 27 9D D7 09 74 EE 82 97 82 49 C6 8D 65 5B A7 06 66 E1 21 B7 FA 6A E2 C5 47 C6 C4 6C 4F B1 6C 18 75 D5 6D 71 1C 7C 8E 2D 24 78 78 88 20 BD C7 D5 FB B0 D8 B6 3D 6F F8 7C 22 87 08 8F E5 90 0B 2E 8C 67 C6 47 66 63 2E 47 19 9C 48 8A 22 38 C9 F2 31 9B 32 2C B9 A4 DB 4D 38 65 27 86 1B 88 BB 39 F0 5B AA 5F 0D 74 45 1C DA 98 85 91 F0 47 AE 91 74 11 55 FA A8 FC 10 43 0E 6A 1B 0C 07 08 AB 3A 27 22 EA D0 45 D2 90 20 A6 83 23 C7 E3 48 93 19 1E 35 64 3C 8F 17 32 88 C3 89 B4 82 1C 44 4D 10 86 F2 7D B6 1D AF EF 6E 48 83 7E CF E8 36 9F A7 C5 A7 7A DD 06 68 74 C2 EB 22 25 4D 59 53 7E 22 08 B9 C2 34 DF 4C 20 BD 6D 60 8A A1 37>
Feb 03 13:57:42.83: [ 2861]: RECV received frame number 68
Feb 03 13:57:43.00: [ 2861]: --> HDLC<262:FF C0 60 E2 7C 5D CC 4E E6 36 B3 6B FF 4D 8C A8 6D 9B 61 86 08 10 C3 5D 87 FA 85 B5 B1 34 9A A6 9E 8F A3 10 91 D2 45 95 68 30 51 DC B9 79 84 47 95 57 55 D6 D3 F3 16 08 10 41 66 25 73 1B 86 CB D5 98 FF 54 AC 19 8F A0 C9 0A C2 08 8F 7A 77 63 A6 12 2C A5 48 BE 47 31 EE 81 11 FE D0 FF 1F 16 E8 7C 74 88 CA BD AF 5D D7 BE 11 8C 11 54 4F D3 D1 30 AA B5 FE B6 20 8B 2A 74 60 C8 E8 8E 88 E8 44 5B 22 F1 3C 76 15 97 C8 68 C2 A4 23 D0 F4 0C AF 2B 53 E9 08 21 08 11 1D 0F E3 8D E3 A4 2D E3 A7 C3 EF BD 30 4A ED DF AF 2F 11 F1 0C 11 1F 2C A6 B9 F4 08 10 88 88 E0 CF E1 46 86 5E 22 23 41 92 08 BC 44 64 F9 1E 29 D7 84 1D F4 88 E9 7F A1 33 81 02 08 23 5C 22 08 FA 9F 40 C2 08 30 C2 08 45 B1 06 6B FE BF E2 47 FF D6 3C 4B 21 5A 23 C5 E2 3A 23 E2 23 EA 08 BC 37 17 40 61 24 5C 06 08 9B A8 6A 86 03 87>
Feb 03 13:57:43.00: [ 2861]: RECV received frame number 71
Feb 03 13:57:43.17: [ 2861]: --> HDLC<262:FF C0 60 52 19 AC 20 81 17 81 1D 3C 59 4B D9 52 52 28 93 E7 64 2B E2 DE 7E 23 73 57 F0 FB 4C 8E B8 7B A0 FB 6F D3 6E F7 0E 82 70 F0 9A AF EF 11 F6 51 05 6E AF 7F C5 F1 A0 45 0E 86 87 1D 4B A2 F0 D1 78 8F 0A 57 91 E0 47 42 23 E6 3A 2F 82 3C 56 FB 86 98 66 E0 88 E1 10 40 CF E9 B2 6D 68 A9 2C 8A A1 C7 25 31 A7 6E DB 6C 11 D2 23 A6 25 D4 21 60 E9 C8 EA 17 87 DA FA A8 56 97 6A B6 38 30 AA 81 02 6D A0 67 86 10 56 DD 17 CB E6 41 A2 3A 23 FF 89 D5 64 84 41 57 69 1D A9 65 E2 41 11 E2 32 34 65 F2 46 47 19 18 C9 F3 0A 08 A8 97 C4 20 44 7C C6 21 02 13 68 8F 12 10 22 93 A0 82 D4 3E 1B 4F 11 B1 5F 4C 46 C4 5C 52 55 5F EF D7 55 54 CC AD 08 8E 7D 08 8B 2B 8F B1 0C 36 A1 26 C1 1E 71 84 A1 66 1D D2 84 CD 76 1D 27 C6 83 23 88 78 69 ED 84 13 68 26 90 4F 83 0F DF B6 DA F5 C8 E3 F1 5C 8F 11 A7 FB>
Feb 03 13:57:43.17: [ 2861]: RECV received frame number 74
Feb 03 13:57:43.34: [ 2861]: --> HDLC<262:FF C0 60 D2 C7 47 87 42 29 19 42 11 3B 08 88 6B A2 AA 9C 52 76 EC 30 CD 52 86 1A 08 43 69 04 10 30 C2 0E 22 22 22 22 22 1D C3 85 C2 05 4A FF EF B6 DF 8E 2D 6D 38 CC 3E EA F1 29 68 95 A1 1C 46 C9 62 41 02 08 36 3A 09 04 1E 17 49 6C FF CC 9C 10 88 88 88 8A 41 86 25 CF 09 29 7C 8E 54 18 69 38 7C 43 D6 3B 86 BC EE A4 54 90 E7 91 17 44 84 3B 4E 61 70 92 58 63 84 92 0C 33 38 78 88 88 88 71 60 88 E9 7B 50 41 48 CB 9F F0 EB 12 39 87 C8 F9 82 C4 49 2A 24 2F 11 25 08 90 88 12 22 EB D6 1A 61 41 2C BB C2 08 20 59 89 24 10 C4 44 44 44 44 44 44 43 43 56 A2 3F 90 45 8A 42 FC 21 84 48 62 11 F5 43 44 8F BE F4 CE 38 88 88 88 8E 3C 2B 10 8A 85 A6 A9 88 20 B1 C2 60 8C 3E 5A C9 48 85 23 34 24 B1 5E 47 42 13 1A 23 3A 04 64 E0 81 94 39 5C 13 2B 93 52 AA 32 3B 33 23 11 03 22 3B 23 44 74 88 F0 ED 30>
Feb 03 13:57:43.34: [ 2861]: HDLC frame not byte-oriented. Trailing byte: 0xfc
Feb 03 13:57:43.34: [ 2861]: RECV received RCP frame
Feb 03 13:57:43.53: [ 2861]: --> [10:NO CARRIER]
Feb 03 13:57:43.53: [ 2861]: MODEM set XON/XOFF/DRAIN: input ignored, output disabled
Feb 03 13:57:43.53: [ 2861]: MODEM input buffering disabled
Feb 03 13:57:43.53: [ 2861]: <-- [9:AT+FRH=3\r]
Feb 03 13:57:43.88: [ 2861]: --> [7:CONNECT]
Feb 03 13:57:44.79: [ 2861]: --> HDLC<9:FF C8 FD F4 80 00 B8 4E 2B>
Feb 03 13:57:44.80: [ 2861]: --> [2:OK]
Feb 03 13:57:44.80: [ 2861]: RECV recv PPS (partial page signal)
Feb 03 13:57:44.80: [ 2861]: RECV recv EOP (no more pages or documents)
Feb 03 13:57:44.80: [ 2861]: RECV received 30 frames of block 1 of page 2
Feb 03 13:57:44.80: [ 2861]: <-- [9:AT+FRS=7\r]
Feb 03 13:57:44.98: [ 2861]: --> [2:OK]
Feb 03 13:57:44.98: [ 2861]: <-- [9:AT+FTH=3\r]
Feb 03 13:57:45.03: [ 2861]: --> [7:CONNECT]
Feb 03 13:57:45.03: [ 2861]: <-- HDLC<35:FF C8 3D 00 00 00 00 02 00 C0 42 00 10 00 3F FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF>
Feb 03 13:57:47.30: [ 2861]: --> [2:OK]
Feb 03 13:57:47.30: [ 2861]: RECV send PPR (partial page request)
Feb 03 13:57:47.30: [ 2861]: MODEM input buffering enabled
Feb 03 13:57:47.30: [ 2861]: MODEM set XON/XOFF/FLUSH: input ignored, output generated
Feb 03 13:57:47.30: [ 2861]: <-- [11:AT+FRM=122\r]
Feb 03 13:57:48.10: [ 2861]: --> [8:+FCERROR]
Feb 03 13:57:48.10: [ 2861]: <-- [11:AT+FRM=122\r]
Feb 03 13:57:52.45: [ 2861]: --> [8:+FCERROR]
Feb 03 13:57:52.45: [ 2861]: <-- [11:AT+FRM=122\r]
Feb 03 13:57:56.83: [ 2861]: --> [8:+FCERROR]
Feb 03 13:57:56.83: [ 2861]: <-- [11:AT+FRM=122\r]
Feb 03 13:58:01.20: [ 2861]: --> [8:+FCERROR]
Feb 03 13:58:01.20: [ 2861]: <-- [11:AT+FRM=122\r]
Feb 03 13:58:08.20: [ 2861]: MODEM TIMEOUT: reading line from modem
Feb 03 13:58:08.20: [ 2861]: RECV keeping unconfirmed page
Feb 03 13:58:08.24: [ 2861]: RECV/CQ: Adjusting for EOFB at row 227
Feb 03 13:58:08.27: [ 2861]: RECV: 55552 bytes of data, 227 total lines
Feb 03 13:58:08.37: [ 2861]: --> [2:OK]
Feb 03 13:58:08.37: [ 2861]: MODEM set XON/XOFF/DRAIN: input ignored, output disabled
Feb 03 13:58:08.37: [ 2861]: MODEM input buffering disabled
Feb 03 13:58:08.37: [ 2861]: <-- [9:AT+FRS=7\r]
Feb 03 13:58:08.49: [ 2861]: --> [2:OK]
Feb 03 13:58:08.49: [ 2861]: RECV FAX (000003325): from 3182264673, page 2 in 0:54, INF, 3.85 line/mm, 2-D MMR, 12000 bit/s
Feb 03 13:58:08.49: [ 2861]: RECV FAX (000003325): recvq/fax000001059.tif from 3182264673, route to <unspecified>, 2 pages in 1:50
Feb 03 13:58:08.49: [ 2861]: RECV FAX: Failed to properly detect high-speed data carrier.
Feb 03 13:58:08.49: [ 2861]: <-- [9:AT+FTH=3\r]
Feb 03 13:58:08.54: [ 2861]: --> [7:CONNECT]
Feb 03 13:58:08.54: [ 2861]: <-- HDLC<3:FF C8 5F>
Feb 03 13:58:09.86: [ 2861]: --> [2:OK]
Feb 03 13:58:09.86: [ 2861]: MODEM input buffering enabled
Feb 03 13:58:09.86: [ 2861]: RECV FAX (000003325): session with 3182264673 terminated abnormally: Failed to properly detect high-speed data carrier.
Feb 03 13:58:09.86: [ 2861]: RECV FAX: bin/faxrcvd "recvq/fax000001059.tif" "ttyS5" "000003325" "Failed to properly detect high-speed data carrier." "" ""
Feb 03 13:58:09.86: [ 2861]: RECV FAX: end
Feb 03 13:58:09.86: [ 2861]: SESSION END

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