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</o:shapelayout></xml><![endif]--></head><body lang=FR-BE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I’m using Kamailio with presence enabled and Asterisk PJSIP and outbound-publish. My problem is happening when I place 2 consecutive calls from Asterisk :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>When I make a first call Asterisk sent the following:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>PUBLISH sip:201@192.168.100.37 SIP/2.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPj4f9c19eb-26d8-4bb1-8f00-e69723a61082<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: sip:201@mydomain.com;tag=a560e088-9e8a-49f2-a9b1-4a0ec31340bf<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: sip:201@mydomain.com<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 10697 PUBLISH<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Event: dialog<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Expires: 180<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Max-Forwards: 70<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>User-Agent: Asterisk PBX 14.6.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Type: application/dialog-info+xml<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Length: 247<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><?xml version="1.0" encoding="UTF-8"?> early……<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Kamailio replies :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP/2.0 200 OK<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 192.168.100.37:5080;rport=5080;branch=z9hG4bKPj4f9c19eb-26d8-4bb1-8f00-e69723a61082;received=192.168.100.37<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: sip:201@mydomain.com;tag=a560e088-9e8a-49f2-a9b1-4a0ec31340bf<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: sip:201@mydomain.com;tag=b596189c6de9c38f624fd84638f43be6-ff39<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 10697 PUBLISH<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Expires: 180<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP-ETag: a.1518775074.19863.16.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Server: kamailio (5.0.5 (x86_64/linux))<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Length: 0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>When the call is done, Asterisk sent another PUBLISH telling that the call if terminated :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>PUBLISH sip:201@192.168.100.37 SIP/2.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPja93efb01-a518-445e-9e9b-f6f97ab8c752<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: sip:201@mydomain.com;tag=165fb3b2-ec0e-4786-889f-eb194ad456ce<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: sip:201@mydomain.com<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 10698 PUBLISH<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Event: dialog<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP-If-Match: a.1518775074.19863.16.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Expires: 180<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Max-Forwards: 70<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>User-Agent: Asterisk PBX 14.6.0<o:p></o:p></span></p><p class=MsoNormal>Content-Type: application/dialog-info+xml<o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Content-Length: 230<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><?xml version="1.0" encoding="UTF-8"?> terminated….<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>And Kamailio replies :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP/2.0 200 OK<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 192.168.100.37:5080;rport=5080;branch=z9hG4bKPja93efb01-a518-445e-9e9b-f6f97ab8c752;received=192.168.100.37<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: sip:201@mydomain.com;tag=165fb3b2-ec0e-4786-889f-eb194ad456ce<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: sip:201@mydomain.com;tag=b596189c6de9c38f624fd84638f43be6-48b4<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 10698 PUBLISH<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Expires: 180<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP-ETag: a.1518775074.19873.18.1<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Server: kamailio (5.0.5 (x86_64/linux))<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Content-Length: 0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Here, the SIP ETag is a.1518775074.19873.18.1.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The problem is if I make a new call before the expiration of the previous SUBSCRIBE, Asterisk reuse this SIP ETag according to the RFC :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>PUBLISH sip:201@192.168.100.37 SIP/2.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Via: SIP/2.0/UDP 192.168.100.37:5080;rport;branch=z9hG4bKPj9d13bb82-31d9-48db-9672-bd4b6b4f22f0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>From: sip:201@mydomain.com;tag=33e6b028-0444-4b3a-8bc2-4a987a291528<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>To: sip:201@mydomain.com<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Call-ID: 5adcf0a0-f138-44d6-8c56-eaf7c3b3b183<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>CSeq: 10699 PUBLISH<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Event: dialog<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>SIP-If-Match: a.1518775074.19873.18.1<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Expires: 180<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Max-Forwards: 70<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>User-Agent: Asterisk PBX 14.6.0<o:p></o:p></span></p><p class=MsoNormal>Content-Type: application/dialog-info+xml<o:p></o:p></p><p class=MsoNormal><span lang=EN-US>Content-Length: 247<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><?xml version="1.0" encoding="UTF-8"?> early…<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Kamailio refuse it with this error : “Trying to update an already terminated state. Skipping update.” because the call is considered as terminated.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The RFC is stating :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>When updating previously published event state, PUBLISH requests MUST<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>contain a single SIP-If-Match header field identifying the specific<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>event state that the request is refreshing, modifying or removing.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>This header field MUST contain a single entity-tag that was returned<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>by the ESC in the SIP-ETag header field of the response to a previous<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>publication.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Why Kamailio is acting like that?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Cyrille<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>