Hi everybody,

I am stuck for several days trying to receive a fax using T.38

Based on the instructions in the wiki, I use the following dialplan:

<action application="answer" />
<action application="playback" data="silence_stream://2000"/>
<action application=set data="fax_enable_t38=true"/>
<action application=set data="fax_enable_t38_request=true"/>
<action application="rxfax" data="/tmp/rxfax-${uuid}.tif"/>
<action application="hangup"/>

When I do that, when rxfax is executed, the following appears on the console:

2011-04-02 01:00:04.890173 [ERR] switch_core_session.c:1918 Invalid Application

If I take out the t38 lines, rxfax behaves as expected, receiving the fax using ulaw.

However, I would like to use t.38 instead, which is supported by my gateway.

My scenario is:

PSTN -> CISCO AS5400 from my provider -> Internet -> My Freeswitch.

I have also tried connecting a fax to a Grandstream HT-502, with the same results. I get a INVITE (which don't mention anywhere T.38 in the sdp) and Freeswitch never issues a reINVITE asking to switch to t.38

My version of FS is:
FreeSWITCH Version 1.0.head (git-24a9729 2011-03-11 13-00-55 -0600)

Anybody can give me a clue on what could I be doing wrong????

Thanks in advance!

Alex