[Freeswitch-users] fax goes out at 9600 but not at 14400

[Steve Underwood]

Just disable V.17

Steve

On 03/27/2013 11:24 PM, Luis Daniel Lucio Quiroz wrote:
> ok,  then i change my questio
>
> how can i force v29?
>
> 2013/3/27 Steve Underwood <steveu at coppice.org>:
>> On 03/27/2013 12:34 PM, Luis Daniel Lucio Quiroz wrote:
>>> Steve,  from my side there is not ATA plugged.
>>>
>>> can you suggest me a workarround?
>> Workaround? There is no magic solution for a broken path. What is the
>> path between your FS box and the FAX machine? It can't be a low bit rate
>> codec problem, as they breaks all modems. A G.726 link in the path could
>> explain it. That codec works for V.29 pretty well, but V.17 won't get
>> through it. The problem usually turns out to be a low quality
>> analogue-to-digital interface somewhere in the path.
>>
>> Steve
>>> 2013/3/26 Steve Underwood <steveu at coppice.org>:
>>>> Hi,
>>>>
>>>> The commonest reason for 14,400 failing and 9600 working is the call is
>>>> going out through a poor quality ATA. A *lot* of ATAs seem to badly
>>>> degrade the analogue signal. If it were a digital domain issue, like
>>>> packet loss or a jitter buffer messing up the timing of the signal, this
>>>> should affect 9600 just as much as 14,400.
>>>>
>>>> Regards,
>>>> Steve
>>>>
>>>> On 03/27/2013 07:22 AM, Luis Daniel Lucio Quiroz wrote:
>>>>> Hello
>>>>>
>>>>> Look
>>>>>
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:487
>>>>> ==============================================================================
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:500 Fax
>>>>> processing not successful - result (49) The call dropped prematurely.
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:505 Remote station id:
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:506 Local station
>>>>> id:  SpanDSP Fax Ident
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:507 Pages transferred: 0
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:509 Total fax pages:   0
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:510 Image resolution:  0x0
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:511 Transfer
>>>>> Rate:     14400
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:513 ECM status         off
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:514 remote country:
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:515 remote vendor:
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:516 remote model:
>>>>> 2013-03-26 19:12:42.602751 [DEBUG] mod_spandsp_fax.c:518
>>>>> ==============================================================================
>>>>>
>>>>> Bug if transfer rate is 9600 it goes for good.
>>>>>
>>>>> Currently Im passing these variables, but seems it is not working.
>>>>>
>>>>>
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_ivr_originate.c:2005 Parsing
>>>>> global variables
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [disable-v17]=[true]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_v17_disabled]=[true]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_disable_v17]=[true]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_transfer_rate]=[9600]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [ignore_early_media]=[true]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [absolute_codec_string]=[PCMU]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [origination_caller_id_name]=[anonymous]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [origination_caller_id_number]=[16138007358]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_enable_t38]=[false]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_retry_attempts]=[32]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_retry_limit]=[32]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_retry_sleep]=[180]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_verbose]=[true]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_use_ecm]=[off]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [fax_enable_t38_request]=[false]
>>>>> 2013-03-26 19:12:08.632735 [DEBUG] switch_event.c:1569 Parsing
>>>>> variable [execute_on_fax_success]=[system
>>>>> /usr/local/bin/email2fax.unqueue
>>>>> /var/spool/push.fax/1981467.bl4Q53kE2n at everardo.okay.com.mx
>>>>> test.pdf.tiff.to.16136997792 at faxofaxo.com.job]
>>>>>
>>>>>
>>>>> Does anyone have an idea?
>>>>>
>>>>> LD
>>>>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>