Is it feasible to enhance AMD to detect and report if the far end sends fax tones? I am guessing that, as it is using DSP to detect sounds and periods of silence, the same DSP can also report if a CED tone is sent. If it is feasible, is there a document describing the DSP interface that someone who is not familiar with DSP can use to get started? Neil Youngman Neil Youngman Developer Wirefast Limited Wirefast provides secure corporate messaging services. See our messaging solutions at http://www.wirefast.com/ Please consider the environment. Does this email or attachment need to be printed? This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Any views or opinions are solely those of the author and do not necessarily represent those of Wirefast Limited Email transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of email transmission. Wirefast Limited is registered in England & Wales Company number: 03865860 Registered Office: 7/10 Chandos Street, Cavendish Square, London, W1G 9DQ Wirefast definitions of classification can be found here: www.wirefast.com/classifications
I think that there is a much easier way to detect if the far end is a fax.
In your dialplan, include a section that uses the 'fax' extension. If
the
call jumps to that extension, then the far end is a fax machine.
Regards;
John V.
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Neil Youngman
Sent: Friday, February 09, 2018 09:10 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] AMD and fax detection
Is it feasible to enhance AMD to detect and report if the far end sends fax
tones?
I am guessing that, as it is using DSP to detect sounds and periods of
silence, the same DSP can also report if a CED tone is sent.
If it is feasible, is there a document describing the DSP interface that
someone who is not familiar with DSP can use to get started?
Neil Youngman
Neil Youngman
Developer
Wirefast Limited
Wirefast provides secure corporate messaging services.
See our messaging solutions at http://www.wirefast.com/ Please consider the
environment.
Does this email or attachment need to be printed?
This message contains confidential information and is intended only for the
individual named. If you are not the named addressee you should not
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immediately by email if you have received this email by mistake and delete
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Any views or opinions are solely those of the author and do not necessarily
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arise as a result of email transmission.
Wirefast Limited is registered in England & Wales Company number: 03865860
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A quick test to a fax number doesn't seem to jump to the 'fax'
extension. I checked faxdetect=both on chan_dahdi.conf. I seem to remember
trying this some years back and finding that fax detect only worked for CNG
tones, not CED tones?
Neil Youngman
________________________________________
From: asterisk-users-bounces at lists.digium.com [asterisk-users-bounces at
lists.digium.com] on behalf of Tech Support [asterisk at voipbusiness.us]
Sent: 09 February 2018 14:53
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: Re: [asterisk-users] AMD and fax detection
I think that there is a much easier way to detect if the far end is a fax.
In your dialplan, include a section that uses the 'fax' extension. If
the
call jumps to that extension, then the far end is a fax machine.
Regards;
John V.
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Neil Youngman
Sent: Friday, February 09, 2018 09:10 AM
To: asterisk-users at lists.digium.com
Subject: [asterisk-users] AMD and fax detection
Is it feasible to enhance AMD to detect and report if the far end sends fax
tones?
I am guessing that, as it is using DSP to detect sounds and periods of
silence, the same DSP can also report if a CED tone is sent.
If it is feasible, is there a document describing the DSP interface that
someone who is not familiar with DSP can use to get started?
Neil Youngman
Neil Youngman
Developer
Wirefast Limited
Wirefast provides secure corporate messaging services.
See our messaging solutions at http://www.wirefast.com/ Please consider the
environment.
Does this email or attachment need to be printed?
This message contains confidential information and is intended only for the
individual named. If you are not the named addressee you should not
disseminate, distribute or copy this email. Please notify the sender
immediately by email if you have received this email by mistake and delete
this email from your system.
Any views or opinions are solely those of the author and do not necessarily
represent those of Wirefast Limited
Email transmission cannot be guaranteed to be secure or error-free as
information could be intercepted, corrupted, lost, destroyed, arrive late or
incomplete, or contain viruses. The sender therefore does not accept
liability for any errors or omissions in the contents of this message which
arise as a result of email transmission.
Wirefast Limited is registered in England & Wales Company number: 03865860
Registered Office: 7/10 Chandos Street, Cavendish Square, London, W1G 9DQ
Wirefast definitions of classification can be found here:
www.wirefast.com/classifications
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