sr-users March 2019

sr-users@lists.kamailio.org

78 participants
103 discussions

Default port interference in TLS conneciton
by Dalibor Zeman 24 Mar '19

24 Mar '19

Hello, I am running Kamailio v. 5.1.2 with typical configuration for wss connections (default config + tls, websocket, nathelper modules), quite everything is running as should, but I am quite concerned about what I got on Homer server. My Kamailio is listening on port 4443 for TLS. Opening dialog runs as should, then UPDATE and BYE messages are received on 4443, but sent out on 5060. When I don't set up default port, 403 reply comes on a call. I'd like to know whether it is something defined by standard or it has a meaning and I should leave it as it is, or I should correct it somehow and then how. Also, if it has a meaning, then what it is. Thanks for your answer, Dalibor Zeman.

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Modifying NOTIFY of presence_dialoginfo
by Kevin Olbrich 24 Mar '19

24 Mar '19

Hi! I need to customize the content of the NOTIFY sent by presence_dialoginfo. How can I change the message before it is sent? Kind regards Kevin

2 2

KEMI Ruby - exit from within function
by Andrew White 23 Mar '19

23 Mar '19

Hi all, I know ruby is pretty new to KEMI, so I understand this might not be supported. I’ve been able to build a functional basic configuration using KEMI based app_ruby. However the function KSR::x.exit is not exposed to the interpreter. Reading up on the function (https://kamailio.org/docs/tutorials/devel/kamailio-kemi-framework/kemimods/… <https://kamailio.org/docs/tutorials/devel/kamailio-kemi-framework/kemimods/…>) I can see either a native `exit` or a return from the request_route is recommended. The latter of these works fine, however the former throws the following error when called either within the request_route function or any others: Mar 22 03:40:46 guest /usr/sbin/kamailio[17474]: ERROR: {1 19731 BYE 8u6We4ReU01GuU-zoa7VuqC.qWwwg29S} app_ruby [app_ruby_api.c:105]: app_ruby_print_last_exception(): exception: exit Mar 22 03:40:46 guest /usr/sbin/kamailio[17474]: ERROR: {1 19731 BYE 8u6We4ReU01GuU-zoa7VuqC.qWwwg29S} app_ruby [app_ruby_api.c:1078]: app_ruby_run_ex(): ruby exception (6) on callback for: ksr_request_route (res type: 17) It appears the app_ruby wrapper is seeing an exit as an exception and throwing an error. I’m unsure if this is affecting my actual flow (still building the config), but the error in the logs is certainly annoying. Returning from the request_route function works fine, however this is obviously harder to do from within a sub function. Any direction on how to correctly exit in similar ways to native or other KEMI implementations would be appreciated. By the way, thanks Daniel for writing this module! This makes Kamailio significantly more accessible for myself and others like me! ________________________________ Andrew White - Director uConnected Email: andrew(a)uconnected.com.au Web: www.uConnected.com.au

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Kamailio initial log - Mysql error
by Jorge Cornejo 22 Mar '19

22 Mar '19

Hi, I am new at Kamailio, I have installed a vicidial goautodial box and having some headaches. I can see at starup logs the following message: Mar 18 02:12:34 edialer1 /usr/sbin/kamailio[4028]: ERROR: db_mysql [km_my_con.c:129]: db_mysql_new_connection(): driver error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2 "No such file or directory") Mar 18 02:12:34 edialer1 /usr/sbin/kamailio[4028]: ERROR: <core> [db.c:318]: db_do_init2(): could not add connection to the pool Mar 18 02:12:34 edialer1 /usr/sbin/kamailio[4028]: ERROR: usrloc [dlist.c:654]: register_udomain(): failed to open database connection However if I execute the following command: [root@edialer1 kamailio]# kamctl db show subscriber database engine 'MYSQL' loaded Control engine 'RPCFIFO' loaded +----+------------+----------------------------+----------+---------------+- ---------------------------------+----------------------------------+------+ | id | username | domain | password | email_address | ha1 | ha1b | rpid | +----+------------+----------------------------+----------+---------------+- ---------------------------------+----------------------------------+------+ | 18 | 5474470533 | vaglxc01.goautodial.com | | NULL | 10685ad93a251bb460e7dd544a174288 | 1680d2aebe5f750c4eedb45ad6b5ba4f | NULL | | 20 | 5505791853 | edialer1.gevolution.com.br | | NULL | 04e377e3923716fb5038b0caa79b8ed3 | d65362c7ccd934f00efa21c45e479ec5 | NULL | | 21 | 2347600834 | edialer1.gevolution.com.br | | NULL | 065fc461faa06cec682213cf17352630 | 4d79bc7db16f74d13d1785dafb30391c | NULL | +----+------------+----------------------------+----------+---------------+- ---------------------------------+----------------------------------+------+ I get a DB response.so is Kamailio actually connected to the db or not? Also at logs I get Mar 18 02:13:35 edialer1 /usr/sbin/kamailio[4513]: DEBUG: db_mysql [km_res.c:66]: db_mysql_get_columns(): 1 columns returned from the query So I assume it read from the DB something.This is quite confusing as can't say properly if it is working or not. Why I am not sure? Because can't see any information on it sending information to asterisk listening on port 5070, logs won't show such action. As I can't find the asterisk information at the kamailio.cfg file, I assume it is stored at the DB, and if DB connection is broken, would explain why it doesn't work. Can you please help me to figure this out? Thanks in advance

2 1

How fair is the rtpengine loadbalancing?
by Daniel Tryba 22 Mar '19

22 Mar '19

I have 3 rtp backends defined with equal weights (33 each). But when I look at the number of calls being handled the spreaded load is always 5:4:3 for the machines in the orderd listed: modparam("rtpengine", "rtpengine_sock", "udp:10.235.32.60:7723=33 udp:10.235.32.59:7723=33 udp:10.235.32.58:7723=33") Looking at select_rtpp_node_new I see nothing unfair happening (with my total lack of knowledge of how the node set is populated). Anybody else noticing this?

2 1

Auth for SUBSCRIBE and others
by Kevin Olbrich 22 Mar '19

22 Mar '19

Hi! I am implementing forwarding of SUBSCRIBE (BLF) to an Asterisk behind Kamailio. This works but Kamailio is not requesting for Auth. I then added SUBSCRIBE to: https://github.com/kamailio/kamailio/blob/master/etc/kamailio.cfg#L746 And it now challenges the client correctly. Why does this line only show REGISTER? Shouldn't it request a challenge for all messages? And why does it work with INVITES ootb? Thank you! Kind regards Kevin

3 10

Job Offering: Software Engineer & Dev-Ops for VoIP & IMS
by Carsten Bock 22 Mar '19

22 Mar '19

Hi everyone, due to our ongoing growth in the area of mobile network infrastructure, we are currently looking into expanding our team. We are especially looking for: - Software Engineer VoIP & IMS ( https://www.ng-voice.com/software-engineer-voip-ims) - Dev-Ops (VoIP & IMS) (https://www.ng-voice.com/dev-ops-voip-ims) About us ng-voice was founded by a team of leading open-source and VoIP pioneers and passionate coders to develop software for mobile network operators. Our virtualized, cloud native solutions allow entrepreneurial-thinking mobile network operators to become software-centric and offer voice services on any 4G, 5G, WiFi or any other data network – from regular mobile network operators to private networks in remote areas. We are growing the team both in Hamburg and Berlin and are looking for new colleagues to join us. Your responsibilities • Help us deploying and integrating our software solutions • Have fun testing, validating and optimizing our solutions • Enjoy building things and solving complex problems • Proactively identify ways to unlock operational efficiency • Take care of your teammates and have fun growing a company Our requirements We are more interested in your experience and knowledge than in formal degrees: • Strong interest in telephony • Experience with signalling standards (e.g. SIP, DIAMETER) • Fluent in English • Efficient at driving deadlines and keeping yourself and others on topic Our technology stack • Docker; experience with Docker Swarm and Kubernetes is beneficial • Kamailio, RTPEngine, FreeSwitch • Redis, MySQL and RabbitMQ • SIP, RTP, DIAMETER What we offer • Flexible working hours and great office locations (Berlin and Hamburg) • Entrepreneurial culture and flat hierarchies • High degree of autonomy and no dress code • Competitive salary Please send your application to jobs(a)ng-voice.com. Let us know how your profile fits our requirements. And please let us know the earliest date you could join us plus your salary expectations. We look forward to getting to know you! Thanks, Carsten -- Carsten Bock I Managing Director ng-voice GmbH Millerntorplatz 1 I 20359 Hamburg I Germany www.ng-voice.com Mobile +49 (0)179-20 21 244 I Direct +49 (0)40-52 47 593-40 I Fax +49 (0)40-52 47 593-99 Sitz der Gesellschaft: Hamburg Registergericht: Amtsgericht Hamburg, HRB 120189 Geschäftsführer: Carsten Bock, Dr. David Bachmann Ust-ID: DE279344284 Hier finden Sie unsere handelsrechtlichen Pflichtangaben: http://www.ng-voice.com/imprint/

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How can one change acc table name in Kamailio.cfg
by Z 22 Mar '19

22 Mar '19

For some reason these two modparams are always ignored. The table name used is always acc which is default name. How can I change the table name? loadmodule "acc.so" modparam("acc", "db_table_acc", "*acc_$time(year)_$time(mon)*") modparam("acc", "db_table_missed_calls", "*acc_$time(year)_$time(mon)*") Accounting works as expected otherwise. Appreciate any help. Thanks.

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Re: [SR-Users] Problem at Rx Interface - kamailio P-CSCF 5.1.6
by Valentin Christoph 20 Mar '19

20 Mar '19

Hi all, Remember this question from 23.1. It's solved now, thanks for help:-) All the best Christoph Von meinem Samsung Galaxy Smartphone gesendet. -------- Ursprüngliche Nachricht -------- Von: Valentin Christoph <Christoph.Valentin(a)kapsch.net> Datum: 23.01.19 15:06 (GMT+01:00) An: sr-users(a)lists.sip-router.org Cc: Scherney Theodor <Theodor.Scherney(a)kapsch.net>, Onic Roman <Roman.Onic(a)kapsch.net> Betreff: [SR-Users] Problem at Rx Interface - kamailio P-CSCF 5.1.6 Hi all, We are using kamailio 5.1.6, configured as P-CSCF, facing following problem. Please indicate, if you need further information – e.g. I could provide a tshark trace. If during call setup (by simulated UAs) at the terminating P-CSCF the simulated PCRF rejects the Diameter AAR message, then the kamailio P-CSCF runs into a questionable behaviour. By calling the Rx_AAR() function in configuration, the processing of the 200 OK is suspended (by the ims_qos module) and then resumed with the receipt of the AAA message. Now the ims_dialog module is called with the dlg_terminate(“all”, “reason”) function, but the 200 OK has not yet been sent. The ims_dialog sends CANCEL downstream and 488 upstream. However, the 200 OK is sent additionally. We would rather have expected the ims_dialog module should send BYE in both directions. When we respond the CANCEL with 481 Call/Transaction does not exist (which we MUST according to RFC 3261), then we would expect the ims_dialog module at least now to react with BYE in both directions. Could you help? What’s our misunderstanding? How could we proceed to get this issue fixed? Kind regards Christoph P.S.: This is a retransmission, because the original message did not pass moderator approval due to the attached tshark trace The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof, and is kindly asked to notify the sender and delete the e-mail immediately.

1 0

IMS: ims_isc, ims_registrar_scscf: some additions for 3rd party registration
by Valentin Christoph 20 Mar '19

20 Mar '19

Dear all, Dear Daniel, We had implemented a few additions for third party registration, based on kamailio 5.1.0 IMS modules. * either service info OR original REGISTER request or original 200 OK can be added as body to the 3rd party Registration Request, if indicated by the HSS in the user data * change: S-CSCF does not check for TEL URI, before it sends P-Associated URI to AS (SIP URIs are also sent) We would like to provide a pull request within the next days or week to have the changes as basis for a change in release 5.3.x. Drawback: probably our solution would need to be slightly modified, because we removed the check for TEL URI, if the S-CSCF sends the P-Associated-URI header to the AS in the 3rd party register request (maybe introduce a module parameter?). Any comments? Would it be reviewed and maybe taken for 5.3? All the best Christoph ____ Christoph VALENTIN Software Developer | R&D Core / SIP Core P +43 50 811 3785 | M +43 664 628 3785 christoph.valentin(a)kapsch.net<mailto:christoph.valentin@kapsch.net> Kapsch CarrierCom AG | Lehrbachgasse 11 | 1120 Vienna | Austria Company Register at: Commercial Court Vienna FN 223804 z | Registered Office Vienna | www.kapsch.net<http://www.kapsch.net/> [Kapsch Logo]<https://www.kapsch.net/> The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof, and is kindly asked to notify the sender and delete the e-mail immediately.

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sr-users March 2019