Re: [SR-Users] Problem initiating a call with dlg_bridge

Hi Daniel, I’ve just done a few quick tests after “git pull origin” upgrade. It works when the 2 snom endpoints are registered over UDP transport with stun enabled. Which is great thank you very much. But I have come across a couple of cases that are not working for me yet: FAIL CASE 1 : It does not send the REFER to the from device when the from device is registered with transport UDP and with stun disabled. FAIL CASE 2 : It does not send the REFER to the from device when the from device is registered with transport tcp with stun enabled. It turns out that the snom is not doing stun when the transport =tcp so this is actually the same case as the one above …. i.e. nat handling and routing. … not sure yet whether the nat routing failures are is due to my script or the module… I would have thought theREFER should still go to 105@NATROUTERIP rather than 105@LANlocalIP? WORKING CASE : udp transport, stun enabled --------------------------------------------------------------The message buffer dump at the top of request_route() gives me 2(3415) INFO: <script>: --- SCRIPT Got a REFER packet from KAMAILIOSERVERIP to sip:105@NATROUTERIP:38788;line=1ba8dgba with message buffer: REFER sip:105@NATROUTERIP:38788;line=1ba8dgba SIP/2.0 Via: SIP/2.0/UDP KAMAILIOSERVERIP;branch=z9hG4bK92d2.dc966e61000000000000000000000000.0 To: <sip:105@KAMAILIOSERVERIP>;tag=uj221nkycd From: <sip:controller@kamailio.org>;tag=48329130e552128b3c54a5eeb8c86eea-ca5a CSeq: 11 REFER Call-ID: 5abe7c773aaefc3d-3421@KAMAILIOSERVERIP Route: <sip:KAMAILIOSERVERIP;lr;did=906.c812;nat=yes> Max-Forwards: 70 Content-Length: 0 User-Agent: kamailio (4.2.0 (x86_64/linux)) Referred-By: sip:controller@kamailio.org Refer-To: sip:106@KAMAILIOSERVERIP Contact: <sip:controller@kamailio.org:5060> kamctl ul show 105@KAMAILIOSERVERIP Contact:: <sip:105@NATROUTERIP:38788;line=1ba8dgba>;q=1;expires=3592;flags=0x0;cflags=0x40;state=2;socket=<udp:KAMAILIOSERVERIP:5060>;methods=0x17DF;received=<sip:NATROUTERIP:38788>;user_agent=<snom370/8.7.3.19>;+sip.instance=<urn:uuid:b56f3e3c-78ac-4aa2-8073-000413260935>;reg-id=1 FAIL CASE 1 : udp transport + stun disabled ------------------------------------------------------------ The message buffer dump at the top of request_route() gives me 1(3414) INFO: <script>: --- SCRIPT Got a REFER packet from KAMAILIOSERVERIP to sip:105@192.168.1.15:5060;line=dq8tdtq2 with message buffer: REFER sip:105@192.168.1.15:5060;line=dq8tdtq2 SIP/2.0 Via: SIP/2.0/UDP KAMAILIOSERVERIP;branch=z9hG4bK03d2.fbd72b40000000000000000000000000.0 To: <sip:105@KAMAILIOSERVERIP>;tag=z0qd99c588 From: <sip:controller@kamailio.org>;tag=48329130e552128b3c54a5eeb8c86eea-8a12 CSeq: 11 REFER Call-ID: 5abe7c773aaefc3c-3421@KAMAILIOSERVERIP Route: <sip:KAMAILIOSERVERIP;lr;did=016.a3f1;nat=yes> Max-Forwards: 70 Content-Length: 0 User-Agent: kamailio (4.2.0 (x86_64/linux)) Referred-By: sip:controller@kamailio.org Refer-To: sip:106@KAMAILIOSERVERIP Contact: <sip:controller@kamailio.org:5060> kamctl ul show 105@KAMAILIOSERVERIP Contact:: <sip:105@192.168.1.15:5060;line=dq8tdtq2>;q=1;expires=3595;flags=0x0;cflags=0x40;state=2;socket=<udp:KAMAILIOSERVERIP:5060>;methods=0x17DF;received=<sip:NATROUTERIP:38788>;user_agent=<snom370/8.7.3.19>;+sip.instance=<urn:uuid:b56f3e3c-78ac-4aa2-8073-000413260935>;reg-id=1 FAIL CASE 2 : tcp transport + stun enabled. ---------------------------------------------------------The message buffer dump at the top of request_route() gives me It looks like the snom ignores stun settings when transport=tcp …. therefore this failure case is actually the same as the one above…. i.e it is a routing / NAT problem when stun is disabled INFO: <script>: --- SCRIPT Got a REFER packet from KAMAILIOSERVERIP to sip:105@192.168.1.15:1113;transport=tcp;line=vr59tdgv with message buffer: REFER sip:105@192.168.1.15:1113;transport=tcp;line=vr59tdgv SIP/2.0 Via: SIP/2.0/UDP KAMAILIOSERVERIP;branch=z9hG4bKf2d2.9651ae40000000000000000000000000.0 To: <sip:105@KAMAILIOSERVERIP>;tag=h233uut5bz From: <sip:controller@kamailio.org>;tag=48329130e552128b3c54a5eeb8c86eea-4c61 CSeq: 11 REFER Call-ID: 5abe7c773aaefc3b-3421@KAMAILIOSERVERIP Route: <sip:KAMAILIOSERVERIP;r2=on;lr;did=f06.06e;nat=yes>, <sip:KAMAILIOSERVERIP;transport=tcp;r2=on;lr;did=f06.06e;nat=yes> Max-Forwards: 70 Content-Length: 0 User-Agent: kamailio (4.2.0 (x86_64/linux)) Referred-By: sip:controller@kamailio.org Refer-To: sip:106@KAMAILIOSERVERIP Contact: <sip:controller@kamailio.org:5060> kamctl ul show 105@KAMAILIOSERVERIP Contact:: <sip:105@192.168.1.15:1113;transport=tcp;line=vr59tdgv>;q=1;expires=3587;flags=0x0;cflags=0x40;state=2;socket=<tcp:KAMAILIOSERVERIP:5060>;methods=0x17DF;received=<sip:NATROUTERIP:34841;transport=TCP>;user_agent=<snom370/8.7.3.19>;+sip.instance=<urn:uuid:b56f3e3c-78ac-4aa2-8073-000413260935>;reg-id=1 On 29 Oct 2014, at 11:11, Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; wrote: