[SR-Users] Re: help on how to get ACK

Yes, it looks like for some reason all of my messages got queued and flowed in late yesterday (looks like something to do with the use of reply all and having additional recipients?), so despite realizing the answer after sending, the messages hit hours later. 🙁 Kaufman Senior Voice Engineer E: bkaufman(a)bcmone.com SIP.US Client Support: 800.566.9810 | SIPTRUNK Client Support: 800.250.6510 | Flowroute Client Support: 855.356.9768 [img]<https://www.sip.us/> [img]<https://www.siptrunk.com/> [img]<https://www.flowroute.com/> ________________________________ From: Alex Balashov via sr-users &lt;sr-users(a)lists.kamailio.org&gt; Sent: Tuesday, December 24, 2024 11:02 AM To: sr-users(a)lists.kamailio.org &lt;sr-users(a)lists.kamailio.org&gt; Cc: Alex Balashov &lt;abalashov(a)evaristesys.com&gt; Subject: [SR-Users] Re: help on how to get ACK CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Ben, From 17.1.1.3: "The ACK request constructed by the client transaction MUST contain values for the Call-ID, From, and Request-URI that are equal to the values of those header fields in the request passed to the transport by the client transaction (call this the "original request"). The To header field in the ACK MUST equal the To header field in the response being acknowledged, and therefore will usually differ from the To header field in the original request by the addition of the tag parameter. The ACK MUST contain a single Via header field, and this MUST be equal to the top Via header field of the original request. The CSeq header field in the ACK MUST contain the same value for the sequence number as was present in the original request, but the method parameter MUST be equal to "ACK"." I think you are mistaken here. The Contact in the 300 should not be used. — Sent from mobile, apologies for brevity and errors. On Dec 24, 2024, at 9:51 AM, Ben Kaufman via sr-users &lt;sr-users(a)lists.kamailio.org&gt; wrote:  This is the contact in your 300: sip:service@10.20.0.3:5060?P-Asserted-Identity=%2216001%22%3Csip%3A16001%3Bverstat%3DTN-Validation-Passed%4010.20.0.2%3A5060%3E This is the URI in your ACK: sip:1@10.20.20.1:5060 It looks like you're using SIPp which is a pain this way. Rather than coding the URI into the ACK of your SIPp scenario, add rss="true" to the recv line for your 300, and then use [next_url] in the template for your ACK mesasge. Here is an example: https://github.com/whosgonna/kamailio_http_async/blob/reply300/sipp/uac_exp… Kaufman Senior Voice Engineer E: bkaufman(a)bcmone.com SIP.US Client Support: 800.566.9810 | SIPTRUNK Client Support: 800.250.6510 | Flowroute Client Support: 855.356.9768 [img]<https://www.sip.us/> [img]<https://www.siptrunk.com/> [img]<https://www.flowroute.com/> ________________________________ From: Sergio Charrua &lt;sergio.charrua(a)voip.pt&gt; Sent: Monday, December 23, 2024 4:14 PM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Cc: Alexis Fidalgo &lt;alzrck(a)gmail.com&gt;om>; Ben Kaufman &lt;bkaufman(a)bcmone.com&gt; Subject: Re: [SR-Users] Re: help on how to get ACK CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hi ! I have the exact same issue as Alexis. This is my SIP flow (which I believe must be very similar, if not identical, to Alexis' ): 10.20.0.1:5060<http://10.20.0.1:5060/> 10.20.20.1:5060<http://10.20.20.1:5060/> ──────────┬───────── ──────────┬───────── 19:49:35.432327 │ INVITE (SDP) │ +0.007536 │ ──────────────────────────> │ 19:49:35.439863 │ 100 trying -- your call is │ +0.006997 │ <────────────────────────── │ 19:49:35.446860 │ 300 SL - Multiple Choices │ +0.001942 │ <────────────────────────── │ 19:49:35.448802 │ ACK │ │ ──────────────────────────> │ │ │ INVITE sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/> SIP/2.0 Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-0 From: sipp <sip:sipp@10.20.0.1:5060<http://sip:sipp@10.20.0.1:5060/>>;tag=1 To: <sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/>> Call-ID: 1-3147164@10.20.0.1<mailto:1-3147164@10.20.0.1> CSeq: 1 INVITE Contact: sip:sipp@10.20.0.1:5060;transport=UDP> Max-Forwards: 70 Subject: Performance Test Content-Type: application/sdp User-Agent: SIPp Session-Expires: 3600;refresher=uas Supported: replaces, timer Content-Length: 129 v=0 o=user1 53655765 2353687637 IN IP4 10.20.0.1 s=- c=IN IP4 10.20.0.1 t=0 0 m=audio 6000 RTP/AVP 0 a=rtpmap:0 PCMU/8000 SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-0 From: sipp <sip:sipp@10.20.0.1:5060<http://sip:sipp@10.20.0.1:5060/>>;tag=1 To: <sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/>> Call-ID: 1-3147164@10.20.0.1<mailto:1-3147164@10.20.0.1> CSeq: 1 INVITE Server: kamailio (5.8.2 (x86_64/linux)) Content-Length: 0 SIP/2.0 300 - Multiple Choices Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-0 From: sipp <sip:sipp@10.20.0.1:5060<http://sip:sipp@10.20.0.1:5060/>>;tag=1 To: <sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/>>;tag=d360f2f6fe5d9cd3912155e609771cc6-f406b8d3 Call-ID: 1-3147164@10.20.0.1<mailto:1-3147164@10.20.0.1> CSeq: 1 INVITE Contact: <sip:service@10.20.0.3:5060?P-Asserted-Identity=%2216001%22%3Csip%3A16001%3Bverstat%3DTN-Validation-Passed%4010.20.0.2%3A5060%3E<http://sip:service@10.20.0.3:5060/?P-Asserted-Identity=%2216001%22%3Csip%3A16001%3Bverstat%3DTN-Validation-Passed%4010.20.0.2%3A5060%3E>> Server: kamailio (5.8.2 (x86_64/linux)) Content-Length: 0 (The above 300 - Multiple Choice message has a new Contact header, that will be used by SBC to redirect the call somewhere else) ACK sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/> SIP/2.0 Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-3 Max-Forwards: 70 From: <sip:sipp@10.20.0.1:5060<http://sip:sipp@10.20.0.1:5060/>>;tag=1 To: <sip:1@10.20.20.1:5060<http://sip:1@10.20.20.1:5060/>>;tag=d360f2f6fe5d9cd3912155e609771cc6-f406b8d3 Contact: <sip:sipp@10.20.0.1:5060<http://sip:sipp@10.20.0.1:5060/>> Call-ID: 1-3147164@10.20.0.1<mailto:1-3147164@10.20.0.1> CSeq: 1 ACK User-Agent: SIPp Content-Length: 0 From this point, Kamailio will re-send the 300 Multiple Choice message, repeating until timeout... Atenciosamente / Kind Regards / Cordialement / Un saludo, Sérgio Charrua On Mon, Dec 23, 2024 at 11:05 PM Ben Kaufman via sr-users <sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>> wrote: Does your 3xx message have a Contact, and does that Contact URI match the RURI in your ACK? Kaufman Senior Voice Engineer E: bkaufman@bcmone.com<mailto:bkaufman@bcmone.com> SIP.US<http://sip.us/> Client Support: 800.566.9810 | SIPTRUNK Client Support: 800.250.6510 | Flowroute Client Support: 855.356.9768 [img]<https://www.sip.us/> [img]<https://www.siptrunk.com/> [img]<https://www.flowroute.com/> ________________________________ From: Alexis Fidalgo via sr-users <sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>> Sent: Monday, December 23, 2024 3:19 PM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>> Cc: Alexis Fidalgo <alzrck@gmail.com<mailto:alzrck@gmail.com>> Subject: [SR-Users] help on how to get ACK CAUTION: This email originated from outside the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Hello all, moving just a bit aside of the http and async_http. After all the real useful and interesting thread on that topic what helped me, im facing a problem i cant deal with and need a hint at least. Scenario INVITE -> Kamailio on request_route ... if(is_method("INVITE")){ t_newtran(); http_async_query("http://nuc:8080", "HTTP_REPLY"); } … Kamailio -> 100 - Trying then route[HTTP_REPLY] { if ($http_ok) { xlog("L_INFO", "route[HTTP_REPLY]: status $http_rs\n"); xlog("L_INFO", "route[HTTP_REPLY]: body $http_rb\n"); t_reply(302,"Redirect"); } else { xlog("L_INFO", "route[HTTP_REPLY]: error $http_err)\n"); } } Kamailio -> 302 Redirect ACK -> Kamailio This last ACK, how can i read it and use it to terminate the transaction? because Kamailio keeps transmitting the 302 message 3 more times until the transaction is finished by a timer 42(44) DEBUG: tm [t_reply.c:1723]: t_retransmit_reply(): reply retransmitted. buf=0x7f4c44f9d680: SIP/2.0 3..., shmem=0x7f4c3fce7900: SIP/2.0 3 42(44) DEBUG: tm [t_reply.c:1723]: t_retransmit_reply(): reply retransmitted. buf=0x7f4c44f9d680: SIP/2.0 3..., shmem=0x7f4c3fce7900: SIP/2.0 3 42(44) DEBUG: tm [t_reply.c:1723]: t_retransmit_reply(): reply retransmitted. buf=0x7f4c44f9d680: SIP/2.0 3..., shmem=0x7f4c3fce7900: SIP/2.0 3 42(44) DEBUG: tm [timer.c:642]: wait_handler(): finished transaction: 0x7f4c3fcd35a0 (p:0x7f4c3fad85d0/n:0x7f4c3fad85d0) 42(44) DEBUG: tm [h_table.c:133]: free_cell_helper(): freeing transaction 0x7f4c3fcd35a0 from timer.c:651 in request_route i have if(is_method("ACK")){ if(!t_check_trans()){ t_release(); } exit; } __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org> To unsubscribe send an email to sr-users-leave@lists.kamailio.org<mailto:sr-users-leave@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org> To unsubscribe send an email to sr-users-leave@lists.kamailio.org<mailto:sr-users-leave@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users(a)lists.kamailio.org To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!