[Freeswitch-users] Detecting a fax

[Michael Jerris]

Fax tones are not played by the remote machine until after answer, the  
tone_detect application starts a media bug that listens for the tone,  
can you confirm the tone is happening at all.  Maybe the issue here is  
the timeout, try making that longer, or doing the tone_detect in  
execute_on_answer

Mike

On Oct 5, 2009, at 6:28 AM, Mark Campbell-Smith wrote:

> Thanks for the response Mike,
>
> I read that page and this one (among others)
> http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_fax_detect, but
> I'm still lost.  This is an extract of my dialplan
>
>    <extension name="Local">
>      <condition field="destination_number" expression="^(10[01][0-9]) 
> $">
>        <action application="set" data="dialed_extension=$1"/>
>        <action application="export" data="dialed_extension=$1"/>
>        <action application="set" data="ringback=${au-ring}"/>
>        <action application="fax_detect"/>
>        <action application="tone_detect" data="fax 1100 r +5000
> transfer fax XML features" />
>        <action application="set" data="hangup_after_bridge=true"/>
>        <action application="set" data="continue_on_fail=true"/>
>        <action application="bridge" data="user/${dialed_extension}@$ 
> {domain}"/>
>
> I would assume that on detecting a fax, the dialplan 'fax' is called
> in context features.  This never happens.
>
> When is the fax tone detected?   Is it while the call is ringing or
> can it be detected after the call is answered?  My goal is to be able
> to have the same extension for a voice and fax call.  i assume that
> the fax 'tones' are standardised and the ones on the wiki are correct?
> Also, I guess this doesn't work with media bypass (which I don't
> use).
>
> Thanks!
>
>
> On Mon, Oct 5, 2009 at 9:56 AM, Michael Jerris <mike at jerris.com>  
> wrote:
>> check out http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_tone_detect
>>
>> Note, you can't just have tone_detect as your last iten in the
>> dialplan as the call will just get hung up.
>>
>> Mike
>>
>> On Oct 4, 2009, at 9:03 AM, Mark Campbell-Smith wrote:
>>
>>> Hi
>>>
>>> I was hoping someone could help me to setup the fax detection / tone
>>> detection application.
>>>
>>> I want to be able to transfer an incoming fax to a specific  
>>> extension.
>>> In my default.xml file, I have the following (extracted):
>>>
>>>    <extension name="1000">
>>>      <condition field="destination_number" expression="^(10[01] 
>>> [0-9])
>>> $">
>>>        <action application="fax_detect"/>
>>>        <action application="tone_detect" data="fax 1100 r +5000
>>> transfer fax XML features" />
>>>
>>> I can't get the fax to be detected and transferred.  Is there any  
>>> way
>>> this can be done?
>>>
>>> Thanks!