On 08/13/2018 08:13 PM, Tim Bowyer wrote:
Hi All,
Have been pulling my hair out trying to work out why we’re getting a strange delay upon completion of a t38 fax using rxfax.
Upon finishing the receiving of a fax, and sending BYE to the originator, freeswitch seems to keep the channel open for exactly 30 seconds then tries to issue another hangup.
Have tried all sorts of things in dialplan, including moving the answer to before the hangup hook – I prefer the answer to be post hangup hook to aid in hunting to different servers in case of API call failures.
What’s also weird, 30 seconds after rxfax completes there are debug entries for time stamps in the CLI from calls in the past?!@
If I do a show channels at idle – there are 0 total
freeswitch@7f9729cbe5af> show channels
0 total.
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Dialplan as follows
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="freeswitch/xml">
<section name="dialplan" description="Incoming Fax">
<context name="public">
<extension name="Fax{{ destination_number }}">
<condition field="destination_number" expression="^({{ destination_number }})$">
<action application="set" data="api_hangup_hook=system /data/python/process_fax.py {{ uuid }} /tmp/{{ uuid }}.tif {{ formats }} --caller {{ caller }} --fax_result_code \\\${fax_result_$........................cut <file:///$%7bfax_result_$........................cut>
<action application="answer" />
<action application="playback" data="silence_stream://2000"/>
{% if subscription.verbose_logging %}
<action application="set" data="fax_verbose=true"/>
{% endif %}
<action application="set" data="fax_enable_t38_request=true"/>
<action application="set" data="fax_enable_t38=true"/>
<action application="set" data="fax_ident={{ subscription.rendered_fax_ident }}"/>
<action application="set" data="fax_header={{ subscription.rendered_fax_header }}"/>
<action application="rxfax" data="/tmp/{{ uuid }}.tif"/>
<action application="hangup"/>
</condition>
</extension>
</context>
</section>
</document>
I'd avoid using `system`. Instead try `bg_system`. Or even better yet, create an event listener that does the job somewhere else external to FreeSWITCH.