Re: [hylafax-users] help to solve T.30 T1 timeout

[Alexandre Biancalana <biancalana@xxxxxxxxx>]

Hi Lee and List !

I set the SessionTracing to 0xFFF and get the following log off an
transaction that the problem ocurred:

Feb 14 15:58:36.95: [10753]: SESSION BEGIN 000040015 5511329
Feb 14 15:58:36.95: [10753]: HylaFAX (tm) Version 4.2.1
Feb 14 15:58:36.95: [10753]: <-- [4:ATA\r]
Feb 14 15:58:46.81: [10753]: --> [7:CONNECT]
Feb 14 15:58:46.81: [10753]: ANSWER: FAX CONNECTION  DEVICE '/dev/cuac07'
Feb 14 15:58:46.81: [10753]: STATE CHANGE: ANSWERING -> RECEIVING
Feb 14 15:58:46.81: [10753]: MODEM input buffering enabled
Feb 14 15:58:46.81: [10753]: RECV FAX: begin
Feb 14 15:58:46.81: [10753]: MODEM input buffering disabled
Feb 14 15:58:46.81: [10753]: <-- HDLC<32:FF C0 04 AD 00 55 12 9E 36 86
62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 4C 74 8C>
Feb 14 15:58:46.81: [10753]: <-- data [32]
Feb 14 15:58:46.81: [10753]: <-- data [2]
Feb 14 15:58:46.84: [10753]: --> [7:CONNECT]
Feb 14 15:58:46.84: [10753]: <-- HDLC<23:FF C0 02 0E AE 2E A6 CA E6 76
96 16 2E F6 72 04 04 04 04 04 04 04 04>
Feb 14 15:58:46.84: [10753]: <-- data [23]
Feb 14 15:58:46.84: [10753]: <-- data [2]
Feb 14 15:58:46.87: [10753]: --> [7:CONNECT]
Feb 14 15:58:46.87: [10753]: <-- HDLC<10:FF C8 01 00 76 5F 23 01 FB C0>
Feb 14 15:58:46.87: [10753]: <-- data [10]
Feb 14 15:58:46.87: [10753]: <-- data [2]
Feb 14 15:58:49.96: [10753]: --> [2:OK]
Feb 14 15:58:49.96: [10753]: <-- [9:AT+FRH=3\r]
Feb 14 15:58:53.07: [10753]: --> [0:]
Feb 14 15:58:53.07: [10753]: MODEM <Empty line>
Feb 14 15:58:53.07: [10753]: MODEM TIMEOUT: waiting for v.21 carrier
Feb 14 15:58:53.07: [10753]: <-- data [1]
Feb 14 15:58:53.28: [10753]: MODEM TIMEOUT: reading line from modem
Feb 14 15:58:53.28: [10753]: MODEM <Timeout>
Feb 14 15:58:53.28: [10753]: DELAY 8500 ms
Feb 14 15:59:01.79: [10753]: <-- [9:AT+FTH=3\r]
Feb 14 15:59:01.79: [10753]: --> [2:OK]
Feb 14 15:59:01.79: [10753]: DELAY 8500 ms
Feb 14 15:59:10.30: [10753]: <-- [9:AT+FTH=3\r]
Feb 14 15:59:10.30: [10753]: --> [7:CONNECT]
Feb 14 15:59:10.30: [10753]: <-- HDLC<32:FF C0 04 AD 00 55 12 9E 36 86
62 82 1A 04 14 2E B6 94 04 6A A6 4E CE 96 F6 76 04 2C 74 4C 74 8C>
Feb 14 15:59:10.30: [10753]: <-- data [32]
Feb 14 15:59:10.30: [10753]: <-- data [2]
Feb 14 15:59:10.33: [10753]: --> [7:CONNECT]
Feb 14 15:59:10.33: [10753]: <-- HDLC<23:FF C0 02 0E AE 2E A6 CA E6 76
96 16 2E F6 72 04 04 04 04 04 04 04 04>
Feb 14 15:59:10.33: [10753]: <-- data [23]
Feb 14 15:59:10.33: [10753]: <-- data [2]
Feb 14 15:59:10.35: [10753]: --> [7:CONNECT]
Feb 14 15:59:10.35: [10753]: <-- HDLC<10:FF C8 01 00 76 5F 23 01 FB C0>
Feb 14 15:59:10.35: [10753]: <-- data [10]
Feb 14 15:59:10.35: [10753]: <-- data [2]
Feb 14 15:59:12.83: [10753]: --> [2:OK]
Feb 14 15:59:12.83: [10753]: <-- [9:AT+FRH=3\r]
Feb 14 15:59:15.94: [10753]: --> [0:]
Feb 14 15:59:15.94: [10753]: MODEM <Empty line>
Feb 14 15:59:15.94: [10753]: MODEM TIMEOUT: waiting for v.21 carrier
Feb 14 15:59:15.94: [10753]: <-- data [1]
Feb 14 15:59:16.15: [10753]: MODEM TIMEOUT: reading line from modem
Feb 14 15:59:16.15: [10753]: MODEM <Timeout>
Feb 14 15:59:16.15: [10753]: DELAY 8500 ms
Feb 14 15:59:24.66: [10753]: <-- [9:AT+FTH=3\r]
Feb 14 15:59:24.66: [10753]: --> [2:OK]
Feb 14 15:59:24.66: [10753]: RECV FAX: No answer (T.30 T1 timeout)
Feb 14 15:59:24.66: [10753]: RECV FAX: end
Feb 14 15:59:24.66: [10753]: SESSION END



Thank you again,

Alexandre



On Mon, 14 Feb 2005 05:34:28 -0800, Lee Howard <faxguy@xxxxxxxxxxxxxxxx> wrote:
> On 2005.02.14 05:01 Alexandre Biancalana wrote:
> > Hi list,
> >
> >  I build a Hylafax Server on FreeBSD 4.10 with cyclades cyclon-Y 16
> > ports, and 10 modems Dlink DFM-560EL..
> >
> > This system have high traffic, but many off the calls are being lost
> > by a problem that I can't solve until now.... :(
> >
> > Follow some lines of xferfaxlog and the config.cuac00 is attached.
> >
> > 02/14/05 10:47  CALL    000039001       cuac09          ""      fax
> >  "fax"   ""      0       0       0:47    0:47    "No answer (T.30 T1
> > timeout)"   ""      ""      ""
> 
> This basically means that the modems were unable to detect a fax
> carrier transmitting on that call for the entire duration of T1 (30
> seconds).
> 
> This would happen, for example, if someone called your numbers with a
> voice call rather than a fax call.
> 
> If these are fax calls, however, then chances are good that the modem
> is having an error in detecting and working with the sender's carrier
> signal.
> 
> I personally don't have any experience with the DLink modems.  But
> there were a few others on this list who have mentioned the DFM-560.
> For example:
> 
>    http://www.hylafax.org/archive/2001-06/msg00545.php
> 
> I'd really need to see session logs with SessionTracing set at 0xFFF to
> help you further.
> 
> Lee.
>

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