2012/5/16 Marcin Gozdalik <span dir="ltr">&lt;<a href="mailto:gozdal@gmail.com" target="_blank">gozdal@gmail.com</a>&gt;</span><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div>I&#39;m trying to send fax from FreeSWITCH to PSTN using T.38. FS is connected to Broadsoft softswitch. The softswitch is connected to PSTN using SIP-trunk to external provider. Apparently there is no T.38 on Broadsoft and it is provided by the external provider (i.e. Broadsoft provides only T.38 pass-through).</div>

</blockquote><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>[snip]</div></blockquote></div><br clear="all"><div>For anybody struggling with the same problem: it turned out to be loopback problem. It is possible to transmit a fax through loopback using txfax when the other side is issuing reINVITE. It is however not possible to force FS to issue reINVITE in txfax over loopback (using enable_t38_request).</div>

<div><br></div><div>Best regards</div><div><br></div>-- <br>Marcin Gozdalik<br>