Maybe you could clean things up a bit and use an extension that sets some of these variables: http://wiki.freeswitch.org/wiki/Mod_spandsp#Execute_based_on_fax_session_out... Maybe do something like: originate {ignore_early_media='true'}sofia/gateway/mygateway/18005551234handle_fax Then create that extension: <extension name="Handle faxes"> <condition field="destination_number" expression="^handle_fax$"> <action application="answer"/> <action application="execute_on_fax_detect=txfax /tmp/myfax.tif"/> <action application="execute_on_fax_success=perl fax_sent.pl"/> <action application="execute_on_fax_failure=perl fax_failed.pl"/> <action application="playback" data="silence_stream://20000"/> <action application="hangup"/> </condition> </extension> Of course, do your own thing with the execute_on_fax_xxx variables. Standard disclaimer applies - test it and tinker before telling me it doesn't work. :) -MC On Fri, Sep 21, 2012 at 12:31 PM, Adam Johnston <ajohnston@blimessaging.com>wrote:
I had actually added some sleep commands in some of my other command combinations but I kept getting the same result. However, once I increased the timeout to spandsp_start_fax_detect and increased the sleep time I started getting some successful faxes out.
If no fax tone is detected I would like to set fax_result_code to a custom error code that I could then map in my controller application. Is there some way to evaluate the result of a tone detect? I've been trying the below inline dialplan but it's giving my false negatives so I'm back on the wiki looking for a solution.
'spandsp_start_fax_detect:txfax /tmp/myfax.tif 10 ced,sleep:10000,set:fax_result_code:951' inline
Many thanks,
Adam Johnston
On Fri, Sep 21, 2012 at 2:07 PM, Michael Collins <msc@freeswitch.org>wrote:
Hi Adam,
The key piece of information is this:
[NOTICE] switch_core_state_machine.c:226 sofia/external/18005551234 has executed the last dialplan instruction, hanging up.
You've enabled "fax detection" on the call but you haven't told the call to actually do anything. From what you're doing it seems like you're wanting to detect a fax and then run the txfax application. But what happens if a fax is not detected? Also, what happens to the call in the interim, i.e. between the time you enable fax detect and the time it actually detects a fax tone? The call needs to do "something" while waiting for a fax tone. You may be better off sending this call to an extension and then having several dialplan actions, like "answer", "spandsp_start_fax_detect", and then a "sleep" or "playback" app, or something for the channel to do while it's waiting for fax tone.
Question: what do you want the call to do if no fax is detected?
-MC
On Fri, Sep 21, 2012 at 10:26 AM, Adam Johnston < ajohnston@blimessaging.com> wrote:
Hi all,
I've been trying to use the spandsp_start_fax_detect application (with txfax as the callback) from the originate command but I keep getting a hangup before it completes.
So far I've tried calling the app directly: originate {ignore_early_media='true'}sofia/gateway/mygateway/18005551234&spandsp_start_fax_detect('txfax /tmp/myfax.tif 3 ced')
Inline dialplan: originate {ignore_early_media='true'}sofia/gateway/mygateway/18005551234'spandsp_start_fax_detect:txfax /tmp/myfax.tif 3 ced' inline
..plus some other permutations but all end with the same result:
[NOTICE] mod_spandsp.c:107 Enabling fax detection 'txfax' '/tmp/myfax.tif' [DEBUG] switch_core_media_bug.c:456 Attaching BUG to sofia/external/ 18005551234 [NOTICE] switch_core_state_machine.c:226 sofia/external/18005551234 has executed the last dialplan instruction, hanging up.
Am I misunderstanding how spandsp_start_fax_detect works?
Adam Johnston
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_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
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_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
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