<div dir="ltr">It seems you are facing packet fragmentation, and the second part of the fragment isn't reaching opensips...<div>maybe your wifi router (if it is the only element between your endpoint and opensips) is not correct handling this situation....</div><div>I would sugest a change to TCP as your next step for debugging this problem!</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 5, 2016 at 5:23 PM, Nabeel <span dir="ltr"><<a href="mailto:nabeelshikder@gmail.com" target="_blank">nabeelshikder@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yes, it is definitely listening on the non-standard port:<div><br></div><div><div># netstat -lnp | grep opensips</div></div><div>udp 0 0 162.xxx.x.110:<span style="color:rgb(0,0,0);white-space:pre-wrap">12341</span> 0.0.0.0:* 1750/opensips<br></div><div><br></div><div>In fact, it even seems to register correctly, but the INVITE does not get through.</div><div><br></div><div>I have OpenSIPS set on debug level 4 but did not see anything in the log.</div><div><br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On 5 May 2016 at 21:14, Tito Cumpen <span dir="ltr"><<a href="mailto:tito@xsvoce.com" target="_blank">tito@xsvoce.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Nabeel,<div><br></div><div><br></div><div>Did you verify that your opensips server is listening on this non Standard port ?</div><div><br></div><div>
<p><span>run </span></p><p><span>netstat -lnp | grep opensips</span></p></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 5, 2016 at 4:12 PM, Nabeel <span dir="ltr"><<a href="mailto:nabeelshikder@gmail.com" target="_blank">nabeelshikder@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Tito Campen, I took the trace on my OpenSIPS server, which is the receiving proxy. However, OpenSIPS did not add anything to the server's log itself.</div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On 5 May 2016 at 21:08, Tito Cumpen <span dir="ltr"><<a href="mailto:tito@xsvoce.com" target="_blank">tito@xsvoce.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Nabel, You should should take a trace at the receiving proxy to verify the traffic is even getting there. If there is no sdp received from the UAS you would not see rtp traversing at all. Using non Standard points doesn't assure you that messaging traffic will traverse.</div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 5, 2016 at 3:54 PM, Tito Cumpen <span dir="ltr"><<a href="mailto:tito@xsvoce.com" target="_blank">tito@xsvoce.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Adding to Bogdan's point I am successfully using sip tls on port 443 without any issues as of yet. It's bypassing some isp enforced algs as well as those enforced by local routers. :-).<div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><span>On Thu, May 5, 2016 at 3:35 PM, Nabeel <span dir="ltr"><<a href="mailto:nabeelshikder@gmail.com" target="_blank">nabeelshikder@gmail.com</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><div dir="ltr"><div class="gmail_extra"><br></div><div class="gmail_extra">Please check the following SIP trace taken within a WiFi network. The call fails to connect despite the INVITE request and using a non-standard port. Could this be caused by SIP ALG, or some unopened RTP port on the router?</div><div class="gmail_extra"><br></div><div class="gmail_extra"><a href="http://pastebin.com/raw/C4iymTbh" target="_blank">http://pastebin.com/raw/C4iymTbh</a><br></div></div>
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