[Freeswitch-users] Can't get fax working

Boris Kovalenko boris at tagnet.ru
Wed Jul 20 12:38:48 MSD 2011


Hello!
> Hello Boris,
>   It seems like your Audiocodes is misconfigured. I had a different 
> problem which might be (or not) related to your problem: Both FS and 
> Audiocodes asked for T.38 and it didn't work.
> Do you have T38 enabled in FreeSwitch? If so, try the following at 
> your MP:
I think I have. This is my configuration:
<configuration name="fax.conf" description="FAX application configuration">
<settings>
<param name="use-ecm"                   value="false"/>
<param name="verbose"                   value="true"/>
<param name="disable-v17"               value="false"/>
<param name="ident"                     value="SpanDSP Fax Ident"/>
<param name="header"                    value="SpanDSP Fax Header"/>
<param name="spool-dir"                 value="/tmp"/>
<param name="file-prefix"               value="faxrx"/>
<param name="enable-t38"                value="true"/>
<param name="enable-t38-request"        value="false"/>
</settings>
</configuration>

Also I have <param name="t38-passthru" value="true"/> in every sip 
profile. Also
<!-- <param name="inbound-bypass-media" value="true"/> -->
<!-- <param name="inbound-proxy-media" value="true"/> -->
parameters are commented. Is this right and enought configuration for T38?

> - At the Fax/Modem screen disable all fax and modems protocols.
> - At all other screens set the fax protocol to be T.38
> - Add the T.38 codec.
Tried with no success.
> I hope this helps.
>                            __Yehavi:
>
>
> 2011/7/19 Boris Kovalenko <boris at tagnet.ru <mailto:boris at tagnet.ru>>
>
>     Hello!
>
>         I need help with fax configuration. My network is:
>
>     PSTN E1 --- Cisco AS5350 -- Freeswitch -- Audiocodes MP-114 -- Fax
>
>     FS version: FreeSWITCH Version 1.0.head (git-062f07f 2011-07-16
>     12-35-25 +0200)
>     Audiocodes firmware: 6.00A.038.004
>     I can't get faxes working :( In FS profiles there is a parameter
>     <param name="t38-passthru" value="true"/>
>     Cisco DP fax settings:
>     fax-relay ecm disable
>      fax rate 9600
>      fax protocol t38 ls-redundancy 2 hs-redundancy 1 fallback
>     pass-through g711alaw
>      no vad
>
>     On Audiocodes there is also T38 enabled (as I think) but there is
>     no T38. There are messages on MP-114:
>     ErrMgs=16 T38Decoder received Non-T38 Packet
>     and
>     ||
>
>     Modem Relay Is Not Supported! Forcing Bypass Mode
>
>
>     Please, help! What information I need to collect to help solve the problem?
>
>     -- 
>     Regards,
>     Boris
>
>
>
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-- 
Regards,
Boris


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