Sorry, diagram e-mail also slipped. The truth is as follows.

Voip-ISP --- (ip_trunk-udp) --- Kamailio ---(balance-rr)--- sip1/2
On Sun, Jan 16, 2022 at 9:46 AM Gokan Atmaca <[email protected]> wrote:
>
> Hello
>
> Thanks for the answer. Kamailio and I have two sip servers. Kamailio
> regularly health checks both servers.
> I entered a rule as follows for incoming invitation messages. When I
> receive a call, I get a 404 error.
> What could be the problem? What should the Kamailio topology be like?
>
> I understand as below. Is this true?
>
>                         Asterisks-udp-1
>
>                      /
> Voip-ISP --- (ip_trunk-udp) --- Kamailio ---(balance-rr)---
>
>                     \
>
>                       Asterisk-udp-2
>
> -% Log:
> 09:35:22.454828 IP 78.X.X.X.5060 > 157.X.X.X.5060: SIP: INVITE
> sip:[email protected]:5060 SIP/2.0
> 09:35:22.456939 IP 157.X.X.X..5060 > 78.X.X.X.5060: SIP: SIP/2.0 404 Not Found
> 09:35:22.515906 IP 78.X.X.X.X.5060 > 157.X.X.X.X.5060: SIP: ACK
> sip:[email protected]:5060 SIP/2.0
>
> -% Kamailio_rule:
>
> route[DISPATCH] {
> if(method=="INVITE")
>    xlog("ben bir komandoyum");
>   ds_select_dst("1","4");
>   sl_send_reply("100","Trying");
>   forward();
>   exit();
> }
>
> On Thu, Jan 13, 2022 at 9:37 AM Henning Westerholt <[email protected]> wrote:
> >
> > Hello,
> >
> > the log you've quoted below is not an error log. The first part "INFO" 
> > indicates that is is an informational message. If it would be an error, it 
> > would indicate "ERROR". So you can ignore it if you do not need the 
> > outbound module (probably not).
> >
> > Err_log:
> > Jan 12 12:15:11 kamailio /usr/sbin/kamailio[21241]: INFO: rr
> > [../outbound/api.h:52]: ob_load_api(): unable to import bind_ob - maybe 
> > module is not loaded Jan 12 12:15:11 kamailio /usr/sbin/kamailio[21241]: 
> > INFO: rr
> > [rr_mod.c:188]: mod_init(): outbound module not available
> >
> > Cheers,
> >
> > Henning
> >
> > --
> > Henning Westerholt – https://skalatan.de/blog/
> > Kamailio services – https://gilawa.com
> >
> > -----Original Message-----
> > From: sr-users <[email protected]> On Behalf Of Gokan 
> > Atmaca
> > Sent: Wednesday, January 12, 2022 9:52 PM
> > To: [email protected]
> > Subject: [SR-Users] RR balance kamailio
> >
> > Hello
> >
> > I installed kamailio on Ubuntu. The version information is as follows.
> > (0) I added two dispatcher sip servers. (1) When I enter the parameter as 
> > below in the configuration file , I get an error as follows. (2) I am 
> > getting RR module not available error. Packages installed are 
> > "kamailio-berkeley-modules, kamailio-tls-modules, kamailio-presence-modules"
> >
> > How can I solve the problem?
> >
> > (0) version:
> > version: kamailio 5.5.3 (x86_64/linux)
> > flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, 
> > USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, 
> > TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, 
> > USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLOCKLIST, 
> > HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, 
> > MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT 
> > PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, 
> > select.
> > id: unknown
> > compiled with gcc 9.3.0
> >
> > (1) Dispatcher list:
> >
> > {
> >     NRSETS: 1
> >     RECORDS: {
> >         SET: {
> >             ID: 1
> >             TARGETS: {
> >                 DEST: {
> >                     URI: sip:X.X.X.X
> >                     FLAGS: AP
> >                     PRIORITY: 0
> >                     LATENCY: {
> >                         AVG: 0.000000
> >                         STD: 0.000000
> >                         EST: 0.000000
> >                         MAX: 0
> >                         TIMEOUT: 0
> >                     }
> >                 }
> >                 DEST: {
> >                     URI: sip:Y.Y.Y.Y
> >                     FLAGS: AP
> >                     PRIORITY: 0
> >                     LATENCY: {
> >                         AVG: 0.000000
> >                         STD: 0.000000
> >                         EST: 0.000000
> >                         MAX: 0
> >                         TIMEOUT: 0
> >                     }
> >                 }
> >             }
> >         }
> >     }
> > }
> >
> >
> > (2)
> >
> > if ( method=="INVITE" ) {
> > ds_select_dst("1","4");
> > sl_send_reply("100","Trying");
> > forward();
> > exit();
> > }
> >
> > Err_log:
> > Jan 12 12:15:11 kamailio /usr/sbin/kamailio[21241]: INFO: rr
> > [../outbound/api.h:52]: ob_load_api(): unable to import bind_ob - maybe 
> > module is not loaded Jan 12 12:15:11 kamailio /usr/sbin/kamailio[21241]: 
> > INFO: rr
> > [rr_mod.c:188]: mod_init(): outbound module not available
> >
> > --
> > ⢀⣴⠾⠻⢶⣦⠀
> > ⣾⠁⢠⠒⠀⣿⡁ Debian - The universal operating system ⢿⡄⠘⠷⠚⠋⠀ 
> > https://www.debian.org ⠈⠳⣄⠀⠀⠀⠀
> >
> > __________________________________________________________
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