[Freeswitch-users] Problems with FAX transmission

[Brian West]

You need to setup t38_passthru=true, I'm currently working on an issue where it seems to not be forwarding the invite properly.

/b


On Sep 17, 2010, at 10:21 AM, Meftah Tayeb wrote:

> hi,
> <action application="set" data="bypass_media=true"/> if you are in lan, 
> or <action application="set" data="proxy_media=true"/> to proxy the 
> media from A-Leg to B-Leg
> Jan Riedinger a écrit :
>> I'm trying to send a fax via our Freeswitch switch without success. 
>> It seems that the "invite sdp (t38)" message isn't forwarded from the 
>> gateway of the fax receiver to the gateway of the fax sender. See the 
>> attached tif file with the Wireshark trace.
>> 
>> If I try the fax transmission with the same setup with a commercial 
>> softswitch (same fax equipment, same sending and receiving gateways), 
>> the fax transmission is successful.
>> 
>> We are using the following settings in the sip_profile
>> <param name="inbound-codec-negotiation" value="greedy"/>
>> <param name="inbound-late-negotiation" value="false"/>
>> 
>> Does anybody know what's going wrong?
>> 
>> Thank you in advance
>>      Jan Riedinger