[Freeswitch-users] fax baud rate 9600

[Steve Underwood]

Hi Tamas,

You have inspected the DIS and DCS messages, so you know the far end is 
not trying to send at 14,400 bps. It is, in fact, not communicating at 
all. You also know that you can disable V.17 successfully, as you have 
seen that the disable-v17 entry in the configuration data means the DIS 
message from FS no longer includes V.17. So, up to now you have said 
nothing useful which might get you a helpful reply, but you have said 
things that waste people's time.

My guess is you have a NAT problem, or something similar, which is 
completely blocking communication between the two FAX entities.

Regards,
Steve

On 09/01/2014 02:52 PM, Marlok Tamas wrote:
> Thanks for the answer.
>
> I forgot to mention, but I already disabled that.
> My spandsp.conf (and fax.conf also) looks like this:
>
>     <fax-settings>
>     <param name="use-ecm"        value="false"/>
>     <param name="verbose"        value="true"/>
>     <param name="disable-v17"    value="true"/>
>     <param name="ident"        value=" "/>
>     <param name="header"        value=" "/>
>         <param name="enable-t38" value="false"/>
>     <param name="enable-t38-request" value="false"/>
>     <param name="spool-dir"        value="/tmp"/>
>     <param name="file-prefix"    value="faxrx"/>
>     </fax-settings>
>
> But still. I cannot receive fax from certain devices and I have this 
> error message, which indicates that the other side is trying to send 
> the fax with 14400 transfer rate.
>
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:512 
> ==============================================================================
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:524 Fax processing not successful - result 
> (48) Disconnected after permitted retries.
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:529 Remote station id:
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:530 Local station id: <stationid>
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:531 Pages transferred: 0
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:533 Total fax pages:   0
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:534 Image resolution:  0x0
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:535 Transfer Rate:     14400
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:537 ECM status         off
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:538 remote country:
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:539 remote vendor:
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:540 remote model:
> 9201aae0-771e-4ccf-a5c2-60fdbd3d6f6b 2014-08-28 18:35:39.627132 
> [DEBUG] mod_spandsp_fax.c:542 
> ==============================================================================
>
> The important part of the DIS (from my side) looks like this:
>
> ..00 11..= Supported data signalling rates: V.27 ter and V.29
>
> No V.17. But I do not get an answer (DCS) to my DIS. So the fax 
> processing dies after three retries.
>
>
> On 2014-08-29 17:24, Brian West wrote:
>>
>> <paramname="disable-v17"value="true"/>
>>
>>
>> in fax.conf.xml
>>
>>
>>
>> On Fri, Aug 29, 2014 at 9:02 AM, Marlok Tamas 
>> <tamas.marlok at rackserver.hu <mailto:tamas.marlok at rackserver.hu>> wrote:
>>
>>     Hi!
>>
>>     I found this thread:
>>     http://lists.freeswitch.org/pipermail/freeswitch-users/2013-March/094032.html
>>     and I have the same problem (all faxes with transfer rate: 14400
>>     are dropped)
>>
>>     It seems that nobody ha an answer back then for the question (is
>>     there any way of forcing freeswitch to use transfer rate: 9600)
>>
>>     The result:
>>
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:512
>>     ==============================================================================
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:524 Fax
>>     processing not successful - result (48) Disconnected after
>>     permitted retries.
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:529 Remote
>>     station id:
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:530 Local
>>     station id: <local_number>
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:531 Pages
>>     transferred: 0
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:533 Total
>>     fax pages:   0
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:534 Image
>>     resolution:  0x0
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:535 Transfer
>>     Rate:     14400
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:537 ECM
>>     status         off
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:538 remote
>>     country:
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:539 remote
>>     vendor:
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:540 remote
>>     model:
>>     2014-08-29 15:21:39.187130 [DEBUG] mod_spandsp_fax.c:542
>>     ==============================================================================
>>
>>     Thanks in advance!
>>
>>     Cheers,
>>     tmarlok
>>