<div dir="ltr">Hi Kevin,<br><br>Controlling it through the sip.conf peers is sufficient for us for this case (because this particular provider doesn't support T.38 at all), but I think it would be a good idea to add the option to enable/disable T.38 from the dialplan. If I recall correctly, that's how callweaver worked at the time.<br>
<br>Also, we just checked it, and since for that provider, we have other codecs in higher priorities (like GSM, for example) than G.711, G.711 was not chosen as the only codec, so the fax transmission failed. We can not prioritize G.711 over the other codecs in the sip.conf, for the obvious reasons, so for this, we need to do it in the dialplan. How can we do it?<br>
<br>Thanks.<br><br><div class="gmail_quote">On Mon, Jun 27, 2011 at 2:41 PM, Kevin P. Fleming <span dir="ltr"><<a href="mailto:kpfleming@digium.com">kpfleming@digium.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div><div></div>You can't control this in the dialplan. You control this by disabling T.38 support in sip.conf for that provider (setting 't38pt_updtl' to 'no'). However, don't expect very high reliability transferring FAX over G.711 over the Internet.<br>
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Alternatively, if your provider claims to support T.38, then ensure you are running an updated version of Asterisk, and if you still can't make FAX work over T.38 with them, post debug logs here and we can try to help you figure why it's not working.<br>
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-- <br>
Kevin P. Fleming<br>
Digium, Inc. | Director of Software Technologies<br>
Jabber: <a href="mailto:kfleming@digium.com" target="_blank">kfleming@digium.com</a> | SIP: <a href="mailto:kpfleming@digium.com" target="_blank">kpfleming@digium.com</a> | Skype: kpfleming<br>
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA<br>
Check us out at <a href="http://www.digium.com" target="_blank">www.digium.com</a> & <a href="http://www.asterisk.org" target="_blank">www.asterisk.org</a><br><br></blockquote></div></div>