[SR-Users] Transaction Matching Failed - ACK BYE
Alex Balashov
abalashov at evaristesys.com
Sun Mar 29 19:26:22 CEST 2020
But ACK and BYE definitely are separate transactions. :-) You can refuse to believe me, but it’s still true.
—
Sent from mobile, with due apologies for brevity and errors.
> On Mar 29, 2020, at 10:44 AM, egemen ulus <ulus_egemen at hotmail.com> wrote:
>
>
> Hi again,
>
> I found a solution based loadbalance approach but I'm not sure whether it might cause an issue for other things. Because ACK and BYE are not in a different transaction, I put this at route[RELAY] as following;
>
> if (is_method("ACK")) {
> $duri= $ruri;
> t_relay();
> exit;
> }
>
> My kamailio's aim is to dispatch calls to Asterisks that located in a farm and relay calls come from Asterisk to Outside.
>
> Is it fine?
>
> Get Outlook for Android
> From: sr-users <sr-users-bounces at lists.kamailio.org> on behalf of egemen ulus <ulus_egemen at hotmail.com>
> Sent: Sunday, March 29, 2020 2:23:43 PM
> To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
> Subject: Re: [SR-Users] Transaction Matching Failed - ACK BYE
>
> Hi
>
> You're definitely right, but they must be in the same Dialog, but my case it doesn't recognize it as it is in any current dialog.
>
> Get Outlook for Android
>
> From: sr-users <sr-users-bounces at lists.kamailio.org> on behalf of Alex Balashov <abalashov at evaristesys.com>
> Sent: Saturday, March 28, 2020, 11:24 PM
> To: Kamailio (SER) - Users Mailing List
> Subject: Re: [SR-Users] Transaction Matching Failed - ACK BYE
>
> Hi,
>
> End-to-end ACKs (to confirm 2xx reply to INVITE transaction) and BYEs
> are all separate transactions in their own right; they share a common
> dialog with the initial INVITE request, but not a transaction. Why do
> you expect them to match a known transaction?
>
> -- Alex
>
> On Sat, Mar 28, 2020 at 08:14:05PM +0000, egemen ulus wrote:
>
> > Hi All,
> >
> > I'm trying to establish a topology with Kamailio which is located between Asterisk and Outside.
> >
> > My issue is "transaction matching failed" (t_check_trans failed). That means Kamailio does not recognise ACK & BYE message to forwards. I had a check on email list and google but found nothing.
> > I'm using it with record_route.
> >
> > SIP signalling and part of kamailio.cfg is below. Is there any suggestion?
> >
> >
> >
> > route[WITHINDLG] {
> > if (!has_totag()) return;
> > if (loose_route()) {
> > route(DLGURI);
> > if (is_method("BYE")) {
> > setflag(FLT_ACC); # do accounting ...
> > setflag(FLT_ACCFAILED); # ... even if the transaction fails
> > }
> > else if ( is_method("ACK") ) {
> > xlog("ack is came: $si:$sp\n");
> > route(NATMANAGE);
> > }
> > else if ( is_method("NOTIFY") ) {
> > record_route();
> > }
> > route(RELAY);
> > exit;
> > }
> > if (is_method("SUBSCRIBE") && uri == myself) {
> > route(PRESENCE);
> > exit;
> > }
> > if ( is_method("ACK") ) {
> > if ( t_check_trans() ) {
> > route(RELAY);
> > exit;
> > } else {
> > exit;
> > }
> > }
> > sl_send_reply("404","Not here");
> > exit;
> > }
> >
> > route[NATMANAGE] {
> > #!ifdef WITH_NAT
> > if (is_request()) {
> > if(has_totag()) {
> > if(check_route_param("nat=yes")) {
> > setbflag(FLB_NATB);
> > }
> > }
> > }
> >
> > route(RTPPROXY);
> >
> > if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
> > return;
> > if (is_request()) {
> > if (!has_totag()) {
> > if(t_is_branch_route()) {
> > add_rr_param(";nat=yes");
> > }
> > }
> > }
> > if (is_reply()) {
> > if(isbflagset(FLB_NATB)) {
> > if(is_first_hop())
> > set_contact_alias();
> > }
> > }
> > #!endif
> > return;
> > }
> >
> >
> >
> >
> >
> > Asterisk > Kamailio
> >
> > INVITE sip:user at outside_ip SIP/2.0
> > Via: SIP/2.0/UDP asterisk_ip:5060;branch=z9hG4bK1b56cce0
> > Max-Forwards: 70
> > From: "KUYRUK" <sip:0553847<tel:+10553847>aaaa at asterisk_ip>;tag=as3dde7cdb
> > To: <sip:user at outside_ip>
> > Contact: <sip:0553847<tel:+10553847>aaaa at asterisk_ip:5060>
> > Call-ID: 62a480bf71d2a1aa0ec94b454cd98945 at asterisk_ip:5060
> > CSeq: 102 INVITE
> > User-Agent: Asterisk PBX 1.8.32.3
> >
> >
> > Kamailio > Outside
> >
> > INVITE sip:user at outside_ip SIP/2.0
> > Record-Route: <sip:kamailio_ip;lr;nat=yes>
> > Via: SIP/2.0/UDP kamailio_ip;branch=z9hG4bK7b3f.8e4716eeea4b0dc45cc51d21b5aded57.0
> > Via: SIP/2.0/UDP asterisk_ip:5060;rport=5060;branch=z9hG4bK1b56cce0
> > From: "KUYRUK" <sip:0553847<tel:+10553847>aaaa at asterisk_ip>;tag=as3dde7cdb
> > To: <sip:user at outside_ip>
> > Contact: <sip:0553847<tel:+10553847>aaaa at asterisk_ip:5060;alias=asterisk_ip~5060~1>
> > Call-ID: 62a480bf71d2a1aa0ec94b454cd98945 at asterisk_ip:5060
> > CSeq: 102 INVITE
> > User-Agent: Asterisk PBX 1.8.32.3
> >
> >
> > Outside > Kamailio
> >
> > SIP/2.0 200 OK
> > Via: SIP/2.0/UDP kamailio_ip;branch=z9hG4bK7b3f.8e4716eeea4b0dc45cc51d21b5aded57.0
> > Via: SIP/2.0/UDP asterisk_ip:5060;rport=5060;branch=z9hG4bK1b56cce0
> > From: "KUYRUK" <sip:0553847<tel:+10553847>aaaa at asterisk_ip>;tag=as3dde7cdb
> > To: <sip:user at outside_ip>;tag=kv8iml6ur9
> > Call-ID: 62a480bf71d2a1aa0ec94b454cd98945 at asterisk_ip:5060
> > CSeq: 102 INVITE
> > Record-Route: <sip:kamailio_ip;lr;nat=yes>
> > Contact: <sip:user at outside_ip:5060;alias=x.x.x.x~18005~6;transport=udp>
> >
> >
> > Kamailio > Asterisk
> >
> > SIP/2.0 200 OK
> > Via: SIP/2.0/UDP asterisk_ip:5060;rport=5060;branch=z9hG4bK1b56cce0
> > From: "KUYRUK" <sip:0553847<tel:+10553847>aaaa at asterisk_ip>;tag=as3dde7cdb
> > To: <sip:user at outside_ip>;tag=kv8iml6ur9
> > Call-ID: 62a480bf71d2a1aa0ec94b454cd98945 at asterisk_ip:5060
> > CSeq: 102 INVITE
> > Record-Route: <sip:kamailio_ip;lr;nat=yes>
> > Contact: <sip:user at outside_ip:5060;alias=x.x.x.x~18005~6;transport=udp>
> >
> >
> > Asterisk > Kamailio THIS ACK IS NOT ROUTED TO OUTSIDE BY KAMAILIO!!
> >
> > ACK sip:user at outside_ip:5060;alias=x.x.x.x~18005~6;transport=udp SIP/2.0
> > Via: SIP/2.0/UDP asterisk_ip:5060;branch=z9hG4bK73366924
> > Route: <sip:kamailio_ip;lr;nat=yes>
> > From: "KUYRUK" <sip:0553847<tel:+10553847>aaaa at asterisk_ip>;tag=as3dde7cdb
> > To: <sip:user at outside_ip>;tag=kv8iml6ur9
> > Contact: <sip:0553847<tel:+10553847>aaaa at asterisk_ip:5060>
> > Call-ID: 62a480bf71d2a1aa0ec94b454cd98945 at asterisk_ip:5060
> > CSeq: 102 ACK
> > User-Agent: Asterisk PBX 1.8.32.3
> >
> >
> >
> > Get Outlook for Android<https://aka.ms/ghei36>
>
> > _______________________________________________
> > Kamailio (SER) - Users Mailing List
> > sr-users at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
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