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




 

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From: Alexis Fidalgo via sr-users <sr-users@lists.kamailio.org>
Sent: Monday, December 23, 2024 3:19 PM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Cc: Alexis Fidalgo <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;
        }


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