<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi Bogdan,<div><br></div><div>Thank you for your answer. </div><div>In fact it is the gateway of one of our customer that we can't change configuration and it is not sending OPTIONS with "transport=tcp" in headers.</div><div><br></div><div>Regards</div><div><br></div><div>Vincent</div><div><br><div><div>Le 8 avr. 2014 à 11:32, Bogdan-Andrei Iancu <<a href="mailto:bogdan@opensips.org">bogdan@opensips.org</a>> a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><div><div>Hello,</div><div><br></div><div>When defining your gateways, have you put the "transport=tcp" in the sip uri ?</div><div><br></div><div>Regards,</div><div>Bogdan</div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from Samsung Mobile</div></div><br><br>-------- Original message --------<br>From: Vincent DOCQUOIS <v.docquois.netvisio@gmail.com> <br>Date:08/04/2014 11:02 (GMT+01:00) <br>To: OpenSIPS users mailling list <users@lists.opensips.org> <br>Subject: [OpenSIPS-Users] OPTIONS over TCP <br><br>Hello all,<br><br>I am using Opensips 1.10 for SIP trunking purposes.<br>I use DR module in order to route calls to external gateways. One of destination gateways is only handling SIP over TCP. By adding "transport=tcp" header, I have no problem to use Opensips as a UDP to TCP gateway but I encounter 2 problems with keepalive process (using OPTIONS method) :<br><br>1) Is there a way to make DR module send OPTIONS over TCP instead of default UDP ?<br>2) In the opposite direction, when an incoming TCP OPTIONS is received by Opensips from the external gateway, the 'is_from_gw' function seems not to be able to identify my external gateway. Note that it is OK in UDP with another gateway.<br><br>Is it just a limitation or is there any solution to handle OPTIONS over TCP ?<br><br>Thanks in advance<br><br>Vincent<br>_______________________________________________<br>Users mailing list<br><a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>http://lists.opensips.org/cgi-bin/mailman/listinfo/users<br></users@lists.opensips.org></v.docquois.netvisio@gmail.com></div></blockquote></div><br></div></body></html>