<div class="gmail_quote"><div>Hi Tim,<br><br>Thanks for your response. Here is my topology as listing down below;<br><br>PSTN Line --> Cisco Voice GW --> IP Cloud --> Asterisk<br><br>Will Asterisk able to receive the fax (as in topology above) using its' fax module? In sip.conf I enabled fax detection and T.38. Actually I don't want <br>
to use Hylafax + iaxmodem as per requirement.<br><br>Please advice.<br><br> <br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Date: Fri, 1 Jun 2012 10:19:12 -0400<br>
From: Ahmed Munir <<a href="mailto:ahmedmunir007@gmail.com">ahmedmunir007@gmail.com</a>><br>
Subject: [asterisk-users] Fax over IP ?<br>
To: <a href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a><br>
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<br>
Hi all,<br>
<br>
Couple of things I would like ask, does Asterisk provides free license for<br>
FoIP (for 1 channel) or need to purchase it? Couple of years back, I was<br>
able to send and receive the fax using Digium T1 card, in term of FoIP how<br>
can I able to receive fax from traditional telephone lines / T1 lines? As<br>
far my understanding, the functionality for FoIP is to send fax to email or<br>
receive fax from email i.e. using T.38 protocol.<br>
<br>
The thing I would like to know how I can implement this solution i.e.<br>
receiving fax via IP? Correct me if I'm wrong, while receiving fax from<br>
traditional telephone lines will the topology looks like as listed below;<br>
<br>
PSTN Lines --> Asterisk (mounted a T1/ analog card) --> IP --> Asterisk<br>
(receive Fax over IP)<br>
<br>
or else?<br>
<br>
Please advice.<br>
<br>
<br>
--<br>
Regards,<br>
<br>
Ahmed Munir Chohan<br>
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Message: 15<br>
Date: Fri, 1 Jun 2012 09:29:19 -0500 (CDT)<br>
From: Tim Nelson <<a href="mailto:tnelson@rockbochs.com">tnelson@rockbochs.com</a>><br>
Subject: Re: [asterisk-users] Fax over IP ?<br>
To: Asterisk Users Mailing List - Non-Commercial Discussion<br>
<<a href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a>><br>
Message-ID: <<a href="mailto:2939915.57880.1338560959074.JavaMail.root@rockbochs.com">2939915.57880.1338560959074.JavaMail.root@rockbochs.com</a>><br>
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<br>
----- Original Message -----<br>
> Hi all,<br>
> Couple of things I would like ask, does Asterisk provides free<br>
> license for FoIP (for 1 channel) or need to purchase it? Couple of<br>
> years back, I was able to send and receive the fax using Digium T1<br>
> card, in term of FoIP how can I able to receive fax from traditional<br>
> telephone lines / T1 lines? As far my understanding, the<br>
> functionality for FoIP is to send fax to email or receive fax from<br>
> email i.e. using T.38 protocol.<br>
> The thing I would like to know how I can implement this solution i.e.<br>
> receiving fax via IP? Correct me if I'm wrong, while receiving fax<br>
> from traditional telephone lines will the topology looks like as<br>
> listed below;<br>
> PSTN Lines --> Asterisk (mounted a T1/ analog card) --> IP --><br>
> Asterisk (receive Fax over IP)<br>
> or else?<br>
<br>
FoIP typically means the fax session traverses an IP link at some point, most commonly at the 'last mile'. What happens to the fax after that is up to your requirements. The faxes can be emailed out, stored in a web application, printed to a printer, etc. The possibilities are endless.<br>
<br>
Asterisk does have a few options for faxing. Those are most notably:<br>
<br>
1. Fax for Asterisk - Free license available for 1 channel, or paid licenses for 2+ channels<br>
2. app_fax (I think this is the current module name) - Free fax module for Asterisk, no channel limit, based on SpanDSP<br>
3. Hylafax+ and IAXmodem - Most complicated method of fax setup, but most robust and reliable (in my testing). Would require use of Asterisk 10 with T.38 gateway functionality for proper fax reception.<br>
<br>
Just keep in mind raw fax audio over VoIP is a bad idea, see here: <a href="http://www.soft-switch.org/foip.html" target="_blank">http://www.soft-switch.org/foip.html</a><br>
<br>
If you can provide some additional details on what you're planning to do, we can give more info.<br>
<br>
--Tim<br>
<br>
<br>
<br>
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<br>
Message: 16<br>
Date: Fri, 1 Jun 2012 09:36:50 -0500 (CDT)<br>
From: Tim Nelson <<a href="mailto:tnelson@rockbochs.com">tnelson@rockbochs.com</a>><br>
Subject: Re: [asterisk-users] Fax Server for Asterisk<br>
To: Asterisk Users Mailing List - Non-Commercial Discussion<br>
<<a href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a>><br>
Message-ID: <<a href="mailto:13867195.58161.1338561410617.JavaMail.root@rockbochs.com">13867195.58161.1338561410617.JavaMail.root@rockbochs.com</a>><br>
Content-Type: text/plain; charset=utf-8<br>
<br>
----- Original Message -----<br>
> Hi Tim,<br>
> Unfortunately i can't reproduce the scenario because it was a long<br>
> time ago. But it would be nice to hear from you, what things can be<br>
> verified within fax and Asterisk? Any TIP on wireshark monitoring?<br>
<br>
Within Asterisk, the debug logs can be helpful for routing/connectivity diagnostics. With Hylafax, all of your details will be found in the session logs in /var/spool/hylafax/log. Here you can see each session's interaction with the remote fax device. It is an art deciphering the various protocols, but the folks on the Hylafax lists are incredibly helpful until you've learned the magic of understanding the logs directly. :)<br>
<br>
--Tim<br>
</blockquote><div><br>-- <br></div></div>Regards,<br><br>Ahmed Munir Chohan<br><br><br>