Re: [SR-Users] Response VIA Header

Hi, In the ACK received after 200 OK the parameter 'receiving' is missing as well. What I observed is that to some ISP Kamailio is sending back 'received' parameter, but for some of them - is not sending. See below an invite where Kamailio is setting back 'received' parameter in via response: ----------------------------------------------------------------------------------------------------------------------------------------------- INVITE sip:+123456789@X.X.X.X SIP/2.0 Via: SIP/2.0/UDP Y.Y.Y.Y:5060;branch=z9hG4bK6ae093c7;rport Max-Forwards: 70 From: "+135792468" <sip:+135792468@Y.Y.Y.Y>;tag=as51334407 To: <sip:+123456789@X.X.X.X> Contact: <sip:+135792468@Y.Y.Y.Y:5060> Call-ID: 47e864f029a7b5d5700944aa4035e50b@Y.Y.Y.Y:5060 CSeq: 102 INVITE User-Agent: COMPANY Date: Fri, 30 Nov 2018 09:30:49 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Diversion: <sip:+135792468@Y.Y.Y.Y>;reason=unknown Content-Type: application/sdp Content-Length: 265 ----------------------------------------------------------------------------------------------------------------------------------------------- And this is 100 Trying generated by Kamailio: ----------------------------------------------------------------------------------------------------------------------------------------------- SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK6ae093c7;rport=5060; received=X.X.X.X From: "+123456789" <sip:+123456789@X.X.X.X>;tag=as51334407 To: <sip:+987654312@Y.Y.Y.Y> Call-ID: 47e864f029a7b5d5700944aa4035e50b@X.X.X.X:5060 CSeq: 102 INVITE Server: Nuacom SBC Content-Length: 0 ----------------------------------------------------------------------------------------------------------------------------------------------- But for the below INVITE - Kamailio is sending back without 'received' parameter: ----------------------------------------------------------------------------------------------------------------------------------------------- INVITE sip:+123456789@X.X.X.X:5060;transport=udp;user=phone SIP/2.0 Call-ID: 19685-LC-04d65acb-182279a33(a)hostname.isp.com Contact: <sip:Y.Y.Y.Y:5060> Content-Type: application/sdp CSeq: 60513704 INVITE From: "+987654321" <sip:+987654321@hostname.isp.com;user=phone>;tag=19685-KU-04d65acc-31cdba992 Max-Forwards: 69 Record-Route: <sip:Y.Y.Y.Y:5060;user=0000a839;lr;Cpkt=CPJIS;C=on-gw> Supported: timer To: <sip:+123456789@Y.Y.Y.Y:5060;user=phone> Via: SIP/2.0/UDP Y.Y.Y.Y:5060;branch=z9hG4bK-CPJI-0cdf0724-27de6173 Allow: UPDATE,INVITE,INFO,ACK,OPTIONS,NOTIFY,BYE,CANCEL,PRACK Min-SE: 90 Session-Expires: 600 User-Agent: GATEWAY P-Asserted-Identity: "+987654321"<sip:+987654321@hostname.isp.com;user=phone> P-Preferred-Identity: <sip:+987654321@hostname.isp.com;user=phone> P-Charging-Vector: icid-value="IBCF-2-154357024260892067507758";orig-ioi=3GPP-UTRAN Content-Length: 220 ----------------------------------------------------------------------------------------------------------------------------------------------- SIP/2.0 100 trying -- your call is important to us Call-ID: 19685-LC-04d65acb-182279a33(a)hostname.isp.com CSeq: 60513704 INVITE From: "+123456789" <sip:+123456789@hostname.isp.com;user=phone>;tag=19685-KU-04d65acc-31cdba992 To: <sip:+987654321@X.X.X.X:5060;user=phone> Via: SIP/2.0/UDP X.X.X.X:5060;branch=z9hG4bK-CPJI-0cdf0724-27de6173;rport=5060 Server: Nuacom SBC Content-Length: 0 ----------------------------------------------------------------------------------------------------------------------------------------------- In this case parameter 'received' is missing for all responses generated by Kamailio. Could it be that in the first INVITE - i'm receiving the 'rport' parameter in via request, but in the second INVITE - it is not? Thank You.