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 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:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-0
From: sipp <sip:[email protected]:5060>;tag=1
To: <sip:[email protected]:5060>
Call-ID: [email protected]
CSeq: 1 INVITE
Contact: sip:[email protected]: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:[email protected]:5060>;tag=1
To: <sip:[email protected]:5060>
Call-ID: [email protected]
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:[email protected]:5060>;tag=1
To: <sip:[email protected]:5060>;tag=d360f2f6fe5d9cd3912155e609771cc6-f406b8d3
Call-ID: [email protected]
CSeq: 1 INVITE
Contact: <
sip:[email protected]: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:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 10.20.0.1:5060;branch=z9hG4bK-3147164-1-3
Max-Forwards: 70
From: <sip:[email protected]:5060>;tag=1
To: <sip:[email protected]:5060>;tag=d360f2f6fe5d9cd3912155e609771cc6-f406b8d3
Contact: <sip:[email protected]:5060>
Call-ID: [email protected]
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 <
[email protected]> wrote:
> Does your 3xx message have a Contact, and does that Contact URI match the
> RURI in your ACK?
>
> *Kaufman*
>
> *Senior Voice Engineer *
>
>
> E: [email protected]
>
>
>
>
>
>
> SIP.US Client Support: 800.566.9810 *|* SIPTRUNK Client Support:
> 800.250.6510 *|* Flowroute Client Support: 855.356.9768
> [image: img] <https://www.sip.us>
> [image: img] <https://www.siptrunk.com>
> *[image: img] <https://www.flowroute.com>*
>
>
> ------------------------------
> *From:* Alexis Fidalgo via sr-users <[email protected]>
> *Sent:* Monday, December 23, 2024 3:19 PM
> *To:* Kamailio (SER) - Users Mailing List <[email protected]>
> *Cc:* Alexis Fidalgo <[email protected]>
> *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;
> }
>
>
> __________________________________________________________
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> To unsubscribe send an email to [email protected]
> Important: keep the mailing list in the recipients, do not reply only to
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>
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