<div dir="ltr"><div dir="ltr"><div>Hello all,</div><div><br></div><div>We're having an issue with Kamailio not processing an ACK and hope someone can help. A PCAP shows that Kamailio is receiving the ACK, and we believe these log messages are directly related to it:</div><div dir="ltr"><br>Feb 21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: tm [ut.h:279]: uri2dst2(): ERROR: uri2dst: bad transport for sips uri: 1<br>Feb
21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: tm [t_fwd.c:1777]:
t_forward_nonack(): ERROR: t_forward_nonack: failure to add branches<br>Feb
21 10:54:01 hostname /sbin/kamailio[15854]: ERROR: sl [sl_funcs.c:387]:
sl_reply_error(): ERROR: sl_reply_error used: Unresolvable destination
(478/SL)<br><div><br></div><div>The ACK is as follows. It's from telephone 111111 which is using TLS, which Kamailio listens for on port 5061.</div><div>Does anyone know which URI has the bad transport as per the error above? Might it be the From URI "<a href="mailto:sips%3A111111@es8.example.com">sips:111111@es8.example.com</a>" because it doesn't specify port 5061?</div><div>Thank you in advance.<br></div><div><br>Session Initiation Protocol (ACK)<br> Request-Line: ACK sips:105@70.42.xx.xx:5070 SIP/2.0<br> Message Header<br> Via: SIP/2.0/TLS 50.78.yy.yy:5061;branch=z9hG4bK741961203<br> Route: <sips:70.42.xx.xx:5061;transport=tls;r2=on;lr=on><br> Route: <sips:70.42.xx.xx;r2=on;lr=on><br> From: ES8 Test 102 <<a href="mailto:sips%3A111111@es8.example.com">sips:111111@es8.example.com</a>>;tag=Nf5GG!Orq!MSmGfeu66F03F2114df82b<br> To: <<a href="http://sips:105@es8.example.com:5061">sips:105@es8.example.com:5061</a>>;tag=as7a72b209<br> Call-ID: 222222@50.78.yy.yy<br> CSeq: 94679 ACK<br> Contact: <sips:111111@50.78.yy.yy:5061;transport=tls><br> Max-Forwards: 70<br> User-Agent: ewb2bua/15.3.0<br> Content-Length: 0<br></div><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>David Cunningham, Voisonics Limited<br><a href="http://voisonics.com/" target="_blank">http://voisonics.com/</a><br>USA: +1 213 221 1092<br>New Zealand: +64 (0)28 2558 3782</div></div></div></div></div></div></div></div></div></div></div></div></div></div>