sr-users March 2015

sr-users@lists.kamailio.org

88 participants
150 discussions

Re: [SR-Users] remove_hf_value
by Slava Bendersky 23 Mar '15

23 Mar '15

Hello Daniel, I end up insert routes like this. And right now on client side I see only public ip route and private side only private ip routes. route[ROUTE_HDR_ORG] { # Getting record routes if(is_present_hf("Route")) { xlog("L_INFO", "[$rm], Inbound connection from <$si>\n"); if(is_method("NOTIFY")) { if(is_ip_rfc1918($si)) { xlog("L_INFO", "[$rm], Present Route: $(route_uri{uri.host})\n"); remove_hf("Route"); insert_hf("Record-Route: <"sip" + $sel(cfg_get.kamailio.bindpublicip) + ":" $sel(cfg_get.kamailio.bindpublicport);transport=tcp;lr=on;ftag=$ft;nat=yes>\r\n"); $fs = "tcp" + ":" + $sel(cfg_get.kamailio.bindpublicip) + ":" + $sel(cfg_get.kamailio.bindpublicport); } else { xlog("L_INFO", "[$rm], Present Route: $(route_uri{uri.host})\n"); remove_hf("Route"); insert_hf("Record-Route: <"sip" + ":" $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport);lr=on;ftag=$ft;nat=yes>\r\n"); $fs = "udp" + ":" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport); } } } } And for initial SUBSCRIBE INVITE if (is_method("INVITE|SUBSCRIBE")) { remove_hf("Route"); insert_hf("Record-Route: <"sip" + ":" + $sel(cfg_get.kamailio.bindip) + ":" + $sel(cfg_get.kamailio.bindport);lr=on;ftag=$ft;nat=yes>\r\n"); #record_route(); } Slava. From: "Daniel-Constantin Mierla" <miconda(a)gmail.com> To: "Slava Bendersky" <volga629(a)networklab.ca>, "sr-users" <sr-users(a)lists.sip-router.org> Sent: Wednesday, March 18, 2015 4:15:28 AM Subject: Re: [SR-Users] remove_hf_value Hello, but the INVITE request goes out with 2 Record Route headers, if you get them in the 200ok. Not sure how it is going to work overall, you will have to manually set local sockets for requests within dialog, because you are doing also trasport layer gatewaying (tcp-udp). Anyhow, as a solution, maybe you should just not be using record_route() function and just add the header with insert_hf() for the invite, remove the Record-Route header for 200ok with remove_hf() and insert a new one again with insert_hf() If you know the local address (IP/port/transport) you want to put in the Record-Route, you can build the header as: insert_hf("Record-Route: <sip:_LOCAL_IP_:_LOCAL_PORT_;transport=_LOCAL_TRANSPORT_;lr=on;ftag=$ft;nat=yes> \r\n"); Requests within the dialog can be handled with loose_route(), but again, you have to do more in config for selecting the local socket to send to next hop. Cheers, Daniel On 16/03/15 13:35, Slava Bendersky wrote: Hello Daniel, I want do clean up on routes from first SUBSCRIBE, that when traffic goes to public side of kamailio will be only public route and when traffic is internal the Record-Route will stay internal only. In SDP I see like this. I tired double routes set 0 in rr, but didn't clean enough. <--- Transmitting (NAT) to 10.18.130.46:5060 ---> SIP/2.0 200 OK Via: SIP/2.0/UDP 10.18.130.46;branch=z9hG4bKf852.e0223f39c2bbad8366fdf1b7cb22b336.0;i=8;received=10.18.130.46;rport=5060 Via: SIP/2.0/TCP 192.168.88.252:5062;received=client_pub_ipbranch=z9hG4bK0bbe1f7d27257bba9;rport=5062 Record-Route: <sip:10.18.130.46;r2=on;lr=on;ftag=a185d974ec;nat=yes> On public side remote this Record-Route Record-Route: <sip:kamailio_pub_ip:5084;transport=tcp;r2=on;lr=on;ftag=a185d974ec;nat=yes> On private side remote this Record-Route From: "Slava Bendersky" <sips:10101@networklab.ca> ;tag=a185d974ec To: <sips:10101@networklab.ca> ;tag=as00757d3e Call-ID: b08adb1ad1804a83 CSeq: 236711034 SUBSCRIBE Server: FPBX-2.11.0(11.15.1) Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Expires: 3600 Contact: <sip:10101@10.18.130.50:5060> ;expires=3600 Content-Length: 0 Slava. From: "Daniel-Constantin Mierla" <miconda(a)gmail.com> To: "sr-users" <sr-users(a)lists.sip-router.org> Sent: Monday, March 16, 2015 7:01:54 AM Subject: Re: [SR-Users] remove_hf_value Hello, can you give an example of incoming header and how you want to be after modification? It is not clear for me what end result you want/expect. Cheers, Daniel On 14/03/15 06:41, Slava Bendersky wrote: BQ_BEGIN Hello Everyone, Here updated version. Trying remove Record-Route after the coma. My log shows Mar 14 01:25:21 canlvprx01 /usr/sbin/kamailio[751]: INFO: <script>: [SUBSCRIBE], Inbound connection from <Client Public IP> Mar 14 01:25:21 canlvprx01 /usr/sbin/kamailio[751]: ERROR: <script>: <null> Mar 14 01:25:21 canlvprx01 /usr/sbin/kamailio[751]: INFO: <script>: [SUBSCRIBE], Route for removal: '<null>' route snippet. route[ROUTE_HDR_ORG] { # Getting record routes if(is_present_hf("Route")) { xlog("L_INFO", "[$rm], Inbound connection from <$si>\n"); if(is_method("SUBSCRIBE")) { if(is_ip_rfc1918($si)) { xlog( "$sel((a)hf_value.Record_Route[-1])" ); xlog("L_INFO", "[$rm], Route for removal: '$sel((a)hf_value.Record_Route[-1])'\n"); remove_hf_value("Record-Route[-1]"); } else { xlog( "$sel((a)hf_value.Record_Route[1])" ); xlog("L_INFO", "[$rm], Route for removal: '$sel((a)hf_value.Record_Route[1])'\n"); remove_hf_value("Record-Route[1]"); } } } return; } Slava, From: "Slava Bendersky" <volga629(a)networklab.ca> To: "sr-users" <sr-users(a)lists.sip-router.org> Sent: Friday, March 13, 2015 1:00:44 PM Subject: [SR-Users] remove_hf_value Hello Everyone, I am trying adjust Record-Route, but can't match headers value And I am call route(ROUTE_HDR_ORG); right after route(WITHINDLG); route[ROUTE_HDR_ORG] { # Getting record routes if(is_present_hf("Record-Route")) { if(is_method("SUBSCRIBE")) { xlog( "$sel((a)hf_value.Record_Route[1])" ); xlog("L_INFO", "[$rm], Route for removal: '$sel((a)hf_value.Record_Route[1])'\n"); remove_hf_value("Record-Route[1]"); } } return; } Any help Thank you, Slava. _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, May 27-29, 2015 Berlin, Germany - http://www.kamailioworld.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users BQ_END -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, May 27-29, 2015 Berlin, Germany - http://www.kamailioworld.com

2 1

Presence data to users behind NAT
by Olli Attila 22 Mar '15

22 Mar '15

Hello, Im running kamailio 4.2.3 and I'm trying to build a system where I could have the following features: SIP proxy, RTP proxy, Presence & XCAP service for IM messaging. I have a problem with the Presence service with users that are located behind nat. When Kamailio sends presence info to a watcher with sip NOTIFY message, the destaination ip for the pacage seems to be an un-routable (=private) ip, and so the watcher never receives the NOTIFY message making the watchers sip client unaware of the other users presence. Any suggestions how to make Kamailio handle the watchers behind nat so that the NOTIFY messages will get delivered succesfully? I tried the scenario with a client with public ip and the presence works fine. my kamailio.cfg: http://tny.cz/7d85773c -- Olli

2 1

Kamailio with websocket as transport
by Austin Einter 22 Mar '15

22 Mar '15

Dear All I have a sip user agent. Today it works fine with Kamailio using tcp as tranasport. Now I am planning to support websocket in my sip ua. My question is does Kamailio support websocket transport. If so how can I configure it or while building kamailio do I need to make some flags on. I am using latest Kamailio 4.2.3 (version: kamailio 4.2.3 (x86_64/linux)). Thanks Austin

2 2

Hardware config to run 1000 Kamailio TLS users
by elektau＠yandex.ru 20 Mar '15

20 Mar '15

Hi All, 1. What are resource requirements for running Kamailio server with TLS module active for 1000 registered users (concurrent calls) when running on VPS? In other words, what amount of RAM and processor power required? 2. What is the maximum number of Kamailio TLS users/concurrent calls can be made for the below default values? # Amount of shared and private memory to allocate # for the running Kamailio server (in Mb) SHM_MEMORY=64 PKG_MEMORY=8 Thanks.

3 3

Kamailio hardware requirements
by Mickael Marrache 20 Mar '15

20 Mar '15

Hi, We are currently deploying an entire architecture composed of load balancers, proxies and media relays. All the components except the media relays are Kamailio instances. The media relays are RTP proxy instances. We are trying to determine the hardware requirements for the different servers. We will start with an architecture composed of: . 2 load balancers (one kept as backup to ensure availability) . 2 proxies (load is balanced over the 2 using the DISPATCHER module) . 2 media relays We are trying to determine the recommended hardware for the different components taking into account we will need to serve around 400000 users. How many registrations per second can Kamailio support? How many concurrent calls can Kamailio support? What is the recommended number of children processes? What is the recommended size for PKG memory? What is the recommended size for SHM memory? Thanks for your help, Mickael

2 1

auth_diameter module
by Grant Bagdasarian 19 Mar '15

19 Mar '15

Hello, Does Kamailio still support authentication using the auth_diameter module? There is a note on the modules page stating the module is now obsolete. "NOTE: diameter support was developed for DISC (DIameter Server Client project at http://developer.berlios.de/projects/disc/). This project seems to be no longer maintained and DIAMETER specifications were updated in the meantime. Thus, the module is obsolete and needs rework to be usable with opendiameter or other DIAMETER servers." Is the page referring to this module or the DISC? Are there perhaps any other ways to do authentication with Kamailio using diameter?

2 1

RTPProxy issue?
by Igor Potjevlesch 19 Mar '15

19 Mar '15

Hello, I discovered an issue related to the handling of "timestamp" and/or "Marker bit" with rtpproxy (I use the latest Extension 20081224). The call-flow is the following: one UA places a call to A and put this call on hold. Then, the same UA call another number B. Individual streams are ok. When the UA tries to transfer A with B, the RTPProxy receive a RTP packet with a huge timestamp and the Marker bit set to "True". Just after this RTP packet, RTPProxy stop forward the RTP packets from A to B. B to C is still working. Anyone have an idea? Regards, Igor.

3 9

Sending PUSH notification asynchronously
by Mickael Marrache 19 Mar '15

19 Mar '15

Hi, I'm trying to add PUSH support to my system using Kamailio. When a call is received and the callee has no active registration, a PUSH is sent to the callee endpoint. In order to send this PUSH, my proxy sends an HTTP requests to another server that will send the PUSH. So, my route block is as follows: route[PUSH] { #Send PUSH notification using a custom module I wrote #Suspend transaction execution. t_on_failure("MANAGE_FAILURE"); if(!t_suspend()) { send_reply("503", "Service Unavailable"); exit; } $sht(push=>join::$rU) = "" + $T(id_index) + ":" + $T(id_label); exit; } I would like to execute this route block asynchronously (i.e. in a separate process). I tried using the async_task_route command, and I can see the route block is execute in a separate process, however some stuffs are broken (e.g. transaction timeout, failure route). So, I thought it may be related to the fact asynchronous execution is implemented using t_suspend/t_continue and in this case, t_suspend/t_continue would be called twice. The important point is to make the interaction with the PUSH server asynchronous. Any idea? Thanks, Mickael

2 6

Timeout after t_suspend and failure route
by Mickael Marrache 19 Mar '15

19 Mar '15

Hi, When receiving an INVITE, I arm a failure route and set the fr_timer to 30 seconds. After the fr_timer expires, I need to do some operations however I see the failure route is not executed. I guess it is related to the fact the INVITE has not been forwarded? If yes, how can I execute code when a transaction times out after calling t_suspend? Thanks, Mickael

2 7

missing BYE when 2 redundant kamailio servers share the same database
by Ding Ma 19 Mar '15

19 Mar '15

This is the SIP log when using location routing for BYE from peer server.

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sr-users March 2015