Re: [hylafax-users] hdlc errors

[Robert Haas <robert.haas@xxxxxxxxxxxxxx>]

> > >  Failed to properly detect high-speed data carrier.
> > This error is a strong indicator that the sender did not get MCF or 
> > CFR and has gone back to retransmit prologue frames or PPS/PPM.
> >
> > Current HylaFAX CVS HEAD (to become 4.2.2 most likely) is much better 
> > at handling these situations than previously.  When you see this error 
> > after updating, then it generally means that the sender disconnected 
> > unexpectedly.  Furthermore, if your modem supports AT+FAR=1, then 
> > you'll do well to set Class1AdaptiveRecvCmd to it (if your modem 
> > doesn't support it, then don't).  You'll probably want to review 
> > Class1RMPersistence after updating, also.  (These are documented in 
> > 'man hylafax-config'.)

Well, I upgraded to CVS head, and I'm still having some problems.  A 
sample may be found below.  I'm really suspicious about this line:

May 04 11:12:42.71: [11974]: --> [8:CONNECCT]

I have to think that this means something is seriously busted, but I 
don't know what.  I'm also suspicious about this bit (from a different 
session):

May 04 12:27:17.52: [11974]: <-- [10:AT+FRM=48\r]
May 04 12:27:24.53: [11974]: --> [2:]
May 04 12:27:24.53: [11974]: --> [2:OK]

...Robert


The full document was not received because:

    Failed to properly detect high-speed data carrier.

    ---- Transcript of session follows ----

May 04 11:12:25.90: [11974]: SESSION BEGIN 000000352 18568341111
May 04 11:12:25.90: [11974]: HylaFAX (tm) Version 4.2.1
May 04 11:12:25.90: [11974]: <-- [4:ATA\r]
May 04 11:12:32.16: [11974]: --> [7:CONNECT]
May 04 11:12:32.16: [11974]: ANSWER: FAX CONNECTION  DEVICE '/dev/ttyS0'
May 04 11:12:32.16: [11974]: RECV FAX: begin
May 04 11:12:32.39: [11974]: --> [7:CONNECT]
May 04 11:12:32.42: [11974]: --> [7:CONNECT]
May 04 11:12:34.53: [11974]: --> [2:OK]
May 04 11:12:34.53: [11974]: <-- [9:AT+FRH=3\r]
May 04 11:12:34.90: [11974]: --> [7:CONNECT]
May 04 11:12:36.67: [11974]: --> [2:OK]
May 04 11:12:36.67: [11974]: REMOTE TSI "Silicon Valley Bank"
May 04 11:12:36.67: [11974]: <-- [9:AT+FRH=3\r]
May 04 11:12:36.69: [11974]: --> [7:CONNECT]
May 04 11:12:37.07: [11974]: --> [2:OK]
May 04 11:12:37.07: [11974]: REMOTE wants 14400 bit/s
May 04 11:12:37.07: [11974]: REMOTE wants A4 page width (215 mm)
May 04 11:12:37.07: [11974]: REMOTE wants unlimited page length
May 04 11:12:37.07: [11974]: REMOTE wants 7.7 line/mm
May 04 11:12:37.07: [11974]: REMOTE wants 2-D MMR
May 04 11:12:37.07: [11974]: REMOTE wants T.30 Annex A, 256-byte ECM
May 04 11:12:37.07: [11974]: RECV training at v.17 14400 bit/s
May 04 11:12:37.07: [11974]: <-- [11:AT+FRM=145\r]
May 04 11:12:38.86: [11974]: --> [7:CONNECT]
May 04 11:12:40.39: [11974]: RECV: TCF 2752 bytes, 0% non-zero, 2728 
zero-run
May 04 11:12:40.40: [11974]: --> [10:NO CARRIER]
May 04 11:12:40.40: [11974]: DELAY 75 ms
May 04 11:12:40.48: [11974]: TRAINING succeeded
May 04 11:12:40.48: [11974]: <-- [9:AT+FTH=3\r]
May 04 11:12:41.35: [11974]: --> [7:CONNECT]
May 04 11:12:41.67: [11974]: --> [2:OK]
May 04 11:12:41.69: [11974]: <-- [11:AT+FRM=146\r]
May 04 11:12:42.71: [11974]: --> [8:CONNECCT]
May 04 11:12:42.71: [11974]: <-- [9:AT+FRH=3\r]
May 04 11:12:42.72: [11974]: --> 
[120:ÿRÿÿÿÿÿÿïççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççççç]
May 04 11:12:42.72: [11974]: --> [13:ççççççççççç]
May 04 11:13:22.73: [11974]: MODEM <Timeout>
May 04 11:13:22.93: [11974]: MODEM <Timeout>
May 04 11:13:22.93: [11974]: RECV FAX: Failed to properly detect 
high-speed data carrier.
May 04 11:13:22.93: [11974]: <-- [9:AT+FTH=3\r]
May 04 11:13:22.93: [11974]: RECV FAX (000000352): from Silicon Valley 
Bank, page 1 in 0:42, INF, 7.7 line/mm, 2-D MMR, 14400 bit/s
May 04 11:13:22.93: [11974]: RECV FAX (000000352): 
recvq/fax000000355.tif from Silicon Valley Bank, route to <unspecified>, 
1 pages in 0:50
May 04 11:13:23.80: [11974]: --> [7:CONNECT]
May 04 11:13:24.12: [11974]: --> [2:OK]
May 04 11:13:24.12: [11974]: RECV FAX (000000352): session with Silicon 
Valley Bank terminated abnormally: Failed to properly detect high-speed 
data carrier.
May 04 11:13:24.12: [11974]: RECV FAX: bin/faxrcvd 
"recvq/fax000000355.tif" "ttyS0" "000000352" "Failed to properly detect 
high-speed data carrier."
May 04 11:13:24.12: [11974]: RECV FAX: end
May 04 11:13:24.15: [11974]: SESSION END

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