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42 participants
37517 discussions

Dynamic rtimer interval, transaction to replace in-memory dispatcher list
by Anton Yabchinskiy 05 Sep '22

05 Sep '22

Hello, I have two slightly related questions, and would appreciate any advice on the matter. The first one is about dynamic `rtimer` (or `timer`) intervals. In the route, called by the timer process there is a request to a neighbor service. In the response there's a set of new destinations for in-memory dispatcher list and some TTL value. And I need to adjust the timer interval based on this TTL (e.g., timer interval may be 10 min, but TTL may suggest to request destinations every 5 min since now). Also, the first call to the timer route should be at T+0, not at T+interval. As far as I can tell from `rtimer` module implementation, that's unfeasible. But maybe I'm missing something? Any suggestion on how one should implement something like this? The second one is about updating in-memory dispatcher list. After receiving and parsing new destinations in the timer route, the previous in-memory destinations must be replaced by these new destinations. The naive way of doing so would look something like: `dispatcher.reload` to clear previous list, then a series of `dispatcher.add` calls to add new destinations. But a failed `add` call may lead to wrong in-memory destinations set. As far as I understand I should start using some transaction-aware database for dispatcher destinations, and literally write a transaction. Are there any other ways to solve this?

1 0

Kamailio 5.6 rpm availability
by Riccardo Villa 03 Sep '22

03 Sep '22

Hello, I can’t find rpm packages of kamailio 5.6.x on rpm.kamailio.org, do you know if it’s planned to build them in the future? I’m available if some help/testing is needed. Thanks, Riccardo Villa -- -- NOTICE: This electronic mail transmission may contain confidential information and is intended only for the person(s) named. Any use, copying, or disclosure by any other person is strictly prohibited. If you have received this transmission in error, please notify the sender via e-mail.

2 1

How to hide Via and Record-Route header to external network and restore them to internal network?
by Anthony Blandin 02 Sep '22

02 Sep '22

Hi Community, I have set up a SBC with Kamailio. I am testing voice call from external network to my network and voice call from my network to external network. When I send SIP messages to external network, I want to hide Via and Record-Route headers but when I receive replies from the external network I want to restore these Via and Record-Route headers to my network. How to store and restore these headers in Kamailio configuration ? Could you help on this? Thanks Anthony Blandin

4 11

remove user param from RURI
by Maarten Ureel 02 Sep '22

02 Sep '22

Hello I have a SIP INVITE with a RURI like this: sip:31427;phone-context=stripped@IP How can I remove the phone-context parameter here? In reality it's a very long string and the next hop (an SBC) is complaining about it, but I don't need it anyway. Regards Maarten

1 0

Dispatcher module and xavp_dst
by Pyry Aaltonen 01 Sep '22

01 Sep '22

Hello, I’m quite new user with kamailio (heard first time about it a year ago and joined the list yesterday) and now wondering how the xavp_dst should work. I had read from the documentation that ”The first XAVP is the current selected destination.” I use ds_select_dst with alg 13. And my kamailio version is kamailio 5.5.3 (x86_64/linux) So when my dispatcher list is like (I have also tried to differ the priority value like 10 and 1, but doesn’t make difference) 10 sip:1.2.3.4;transport=tcp 10 1 type=type1 10 sip:4.3.2.1;transport=tcp 10 1 type=type2 If one of the destinations fails (dx/ip), and it happens to be the one with higher priority or the one that just gets higher position in the dispatcher list if the prio Is equal. My xavp_$xavp(dsdst=>attrs) get null value. And, if I try to seek $(xavp(dsdst[0]=>attrs) or $(xavp(dsdst[1]=>attrs) I also got nothing. If both destinations are up with equal priority, it selects them with round-robin, and the xavp_$xavp(dsdst=>attrs) has the type value of the selected destination as expected, also the $(xavp(dsdst[0]=>attrs) or $(xavp(dsdst[1]=>attrs) contains the destinations so that the selected is 0 and the other is at position 1. The $du is updated as I expect so if one fails the other one is selected always, why the xavp_dst isn’t working same way, or am I missing something? If needed I’ll try to provide more information, Thanks already in advance -Pyry

2 4

HTTP client and HTTP/2 support
by Alex Balashov 01 Sep '22

01 Sep '22

Hi, I wasn’t able to find an answer on the list previously, nor any trail of breadcrumbs in the docs: do any of the existing HTTP client modules support HTTP/2? — Alex -- 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/

3 3

Disabling video rtp proxing
by mayamatakeshi 31 Aug '22

31 Aug '22

Hi, I'm using rtpengine for RTP proxying with kamailio. I use it just for audio. But eventually some terminal reinvites offering video. I don't want to refuse the request but just disable RTP proxying for video as my employer has limited bandwidth and want to reserve it only for audio. So I checked the rtpengine module documentation but it seems there is no way to restrict RTP proxying to be performed only for m=audio. I tried some things like replace_body("^m=video [0-9]+", "m=video 0"); and subst_body('/^m=video [0-9]+ /m=video 0 /'); and msg_apply_changes(); but still the RTP proxying for video is set up. Any hints on how to solve this?

3 4

Intermittent delays relaying BYE (up to 1s)
by Lewis Hutchinson 31 Aug '22

31 Aug '22

Ok so making progress but still a little confused, hopefully this forum can shed some light on this behaviour. Using the hints provided (thanks all so far) and the latency logging from the cookbook I have managed to isolate the issue down to RTPengine introducing the delay. INFO: app_python3 [apy_kemi.c:1820]: sr_apy_kemi_exec_func(): alert - action KSR.rtpengine.rtpengine_manage(...) took too long [1003089 ms] (file:(null) func:(null) line:252) What is confusing is, I don't believe this block should be being called. when the BYE is triggered, it routes to ksr_route_withindlg # handle requests within SIP dialogs if self.ksr_route_withindlg(msg)==-255 : return 1 from within the ksr_route_withindlg a check is done to see if any RTPengine work needs doing # Handle requests within SIP dialogs def ksr_route_withindlg(self, msg): if KSR.siputils.has_totag()<0 : return 1 # RTPEngine handling for UPDATES & reINVITES with sdp if self.ksr_route_rtpengine(msg) == -255: return 1 RTPengine is configured in a way to step in whenever there is an SDP present based on Content-Type: application/sdp # RTPengine handle anything with SDP def ksr_route_rtpengine(self, msg): if KSR.textops.has_body_type("application/sdp"): KSR.rtpengine.rtpengine_manage( "RTP/AVP replace-session-connection replace-origin ICE=remove") return 1 What I can understand is why is this being called and erroring introducing the delay when there is no Content-Type: application/sdp in a BYE ??? As a quick fix I have put this in which stops the problem (I am sure there is better ways to handle this but for now this works in a DEV environment) def ksr_route_rtpengine(self, msg): if KSR.is_BYE(): return 1 if KSR.textops.has_body_type("application/sdp"): KSR.rtpengine.rtpengine_manage( "RTP/AVP replace-session-connection replace-origin ICE=remove") return 1 Can anyone see why this would occur? Why is sr_apy_kemi_exec_func(): alert - action KSR.rtpengine.rtpengine_manage(...) even being called for this BYE ? when there is no Content-Type: application/sdp Lewis

2 3

Manual Siremis
by -Luís Fernando- 31 Aug '22

31 Aug '22

Hello, Is there a Siremis Manual, that explain how to configure a SIP Trunk, a sip route, etc.. Thank you

2 1

Websockets Configuration
by Mahmood Alkhalil 31 Aug '22

31 Aug '22

Hi, I'm trying to configure kamailio to register users over websockets, but i am not able to find any working configuration around, am new to kamailio. as far as i understand now, xhttp will handle the HTTP GET requests, i am not sure how to configure xhttp port number, cannot find parameters in the module manual, i found multiple sample configs but none of them is working, am using JsSip client. if someone can guide me with a link to a working config and that i can start from.

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