<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">2013/11/5 Larry Moore <span dir="ltr"><<a href="mailto:lmoore@omninet.net.au" target="_blank">lmoore@omninet.net.au</a>></span><br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div class=""><div class="h5">On 5/11/2013 6:09 PM, Olivier wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Hello,<br>
<br>
I've got an analog phone which is currently receiving unsollicited FAX<br>
calls from PSTN.<br>
<br>
For learning purpose, I'm preparing an Asterisk/SPA3102 setup that would<br>
let voice calls come in and out and translate incoming FAX calls to TIF<br>
files (forwarded through email)).<br>
<br>
My target setup is :<br>
<br>
PSTN <-- analog--> SPA3102 Line Port <-- SIP --> Asterisk <-- SIP --><br>
SPA3102 Phone Port <-- analog --> Analog phone<br>
<br>
<br>
When a call comes in, analog phone rings.<br>
If callee answers and a fax tone is detected, then the incoming call is<br>
sent by Asterisk to ReceiveFAX application which translates incoming<br>
audio to TIF file.<br>
<br>
My setup is working ok when I'm using ReceiveFAX in fallback mode (with<br>
f option).<br>
<br>
Then I would like to improve my setup letting ReceiveFAX negociate T.38<br>
with SPA3102.<br>
The trouble is SPA3102, as I configured it, seems to refuse T.38<br>
negociation as I'm reading lines like this in Asterisk logs:<br>
<br>
== Using UDPTL CoS mark 5<br>
[2013-11-05 10:36:50] WARNING[3061][C-00000007]: res_fax.c:1698<br>
receivefax_t38_init: channel 'SIP/myline-0000000e' refused to negotiate T.38<br>
<br>
My question is:<br>
Any hint on how to configure SPA3102 PSTN Line port so that it would<br>
accept to upgrade to T.38 ?<br>
<br>
<br>
</blockquote>
<br></div></div>
The SPA3102 only supports T.38 on the FXS port, the FXO port uses G711 for a fax session.<br></blockquote><div><br></div><div>That explains why I couldn't find the option ;-)<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">
<br>
The Grandstream HT503 supports T.38 on both the FXO and FXS ports. </blockquote><div><br></div><div>I never tried this one.<br>How would you rate this product ?<br><br></div><div>Is it easy to auto-provision an HT503 over TFTP or HTTP ?<br>
</div><div>Is it easy to localize FXO/FXS setttings for non-US countries (those having played with a SPA3102 sure know what I'm thinking about) ?<br></div><div>Do it T.38 implementation works ok with Asterisk ?<br></div>
<div><br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
What problem do you have receiving a fax over G711?<span class=""><font color="#888888"><br></font></span></blockquote><div><br>I tried few calls in G711 fax mode and it worked OK but I rated T.38 as more reliable solution in the long run and in general.<br>
</div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class=""><font color="#888888">
<br>
Larry.<br>
<br>
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