Re: [SR-Users] Again problems with ACK and Bye

In wireshark, there are 2 fields - Source and Destination. I am curious if there are variables in Kamailio which can show me those values.

System: MYIP - IP of kamailio sip.mydomain.com <http://sip.mydomain.com> - address of kamailio User (Imsdroid for Android) ->Kamailio->Asterisk->Kamailio (same) ->Other user. Problem - register, voice, video, and ring are OK, but ACK and BYE are going in dead loop - and this happens may be around in 50% of cases - not in all cases. If I am using other client (like hardware SIP phones), then I have no problems, but it is really hard to find some client for Android which supports video with Kamailio. To solve problem, I made one function in Kamailio.cfg - ACKBYE, which is called only within dialog. And within dialog is called in main route. route[ACKBYE] { #!ifdef WITH_MYFORWARD xlog("SCRIPT: AckBye $td;$si;$du;$dd\n"); if((($td=="sip.mydomain.com <http://sip.mydomain.com>")||($td=="MYIP"))&&($si=="MYIP")){ $du=$sht(forw=>$ft); xlog("SCRIPT: AckBye2 $td;$si;$du\n"); return; } #!endif return; } Of cource I have if(is_method("INVITE")){ ds_select_dst("1","4"); $sht(forw=>$ft)=$du; } This worked for long time. But then we updated client (libraries etc), and problem appeared again - from time to time. Calls between 2 same clients can pass 2 or 5 times, and then problem appear. Before - $td and $si showed destination and source but now there is difference: ERROR: <script>: SCRIPT: AckBye 192.168.2.251;MYIP;<null>;<null> $td in this case show destination, which is correct, but in wireshark, destination and source = MYIP. ACK sip:MYIP;lr=on;nat=yes SIP/2.0 Via: SIP/2.0/UDP MYIP;branch=z9hG4bKcydzigwkX Via: SIP/2.0/UDP MYIP;rport=5060;branch=z9hG4bKcydzigwkX ............................................ Via: SIP/2.0/UDP MYIP;rport=5060;branch=z9hG4bKcydzigwkX Via: SIP/2.0/UDP 192.168.2.105:44794;branch=z9hG4bK338581244;rport=44794 From: <sip:11171@sip.MYDOMAIN.com <mailto:sip%3A11171@sip.MYDOMAIN.com>>;tag=1687441663 To: <sip:11175@192.168.2.251 <mailto:sip%3A11175@192.168.2.251>>;tag=as13c57096 Contact: <sip:11171@MYIP:5060;transport=udp>;+g.oma.sip-im;language="en,fr";+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel" Call-ID: 4026cd88-aab9-19db-dfbe-1510baafdbb3 CSeq: 473985105 ACK Content-Length: 0 Max-Forwards: 0 Proxy-Authorization: Digest username="11171",realm="sip.stribogkonsult.com <http://sip.stribogkonsult.com>",nonce="T2NZUU9jWCWxMUHSQweHXVQppHS8iFhd",uri="sip:11175@MYIP:5060",response="c5a95942af1502c208fa05d34c405907",algorithm=MD5 Accept-Contact: *;+g.3gpp.icsi-ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel" P-Preferred-Service: urn:urn-7:3gpp-service.ims.icsi.mmtel Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK, UPDATE, REFER Privacy: none P-Access-Network-Info: ADSL;utran-cell-id-3gpp=00000000 User-Agent: IM-client/OMA1.0 android-ngn-stack/v2.0.453 (doubango r653)