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Kamailio Stop Processing Call
by M Arqum CH 21 May '21

21 May '21

Hello Members, I have kamailio setup backed with mysql db, using db_cluster module for spliting read and write.. Lisiting on three different virtual ips are bind with same/single udp port *1* for processing calls. One static IP is bind with udp port*2* to for processing/response to option messages send from keepalived external script after every few seconds and for DMQ messages from other kamailio node. General configuation details: children=16 fork=yes listen=udp:VIP:SIP_PORT1 listen=udp:VIP2:SIP_PORT1 listen=udp:VIP3:SIP_PORT1 listen=udp:StaticIP3:SIP_PORT2 listen=tcp:SIP:RPC_PORT SH_MEM=5012 PRIV_MEM=264 System Specification : 24 GB RAM, 12 CPUs Sometimes kamailio radomly stop processing the requests or give no response on new requests recevied on virtual ips and as well it did't show any error in syslog. To monitor the kamailio memory I used promethues ( https://github.com/florentchauveau/kamailio_exporter) The moment kamailio stop processing the requests it also stop responding to kamailio exporter and scrap request get timeout. i.e error log on console debian prometheus-kamailio-exporter[83440]: 2021/05/20 12:15:27 [error] cannot read header: read unix @->/tmp/kamailio__ctl: i/o timeout After getting first timeout occurrence of kamailio-exporter scrap request, kamailio processed sip messages for almost 30 seconds then completly stop replying to any message. But it keep replying to option message arrive on different port from keepalived script. Stats : Active dialog: 75 Shared memory used: 150 MB Kamailio Installed version : kamailio -v version: kamailio 5.4.1 (x86_64/linux) 2ca223 flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: 2ca223 compiled on 12:51:24 Sep 21 2020 with gcc 6.3.0 Is anyone else face similar issue or idea why kamailio is showing such behaviour.? Please guide me on what I should do to find and fix the issue. Thanks -- Regards M Arqum

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Video transcode for doorbell
by Luke Kenny 21 May '21

21 May '21

I have a SIP video doorbell device that is only capable of sending H264 and MJPEG video. The site is using 3CX and its associated mobile app, which only supports VP8 and VP9. Without properly reading the documentation, I went ahead and set up kamailio and rtpengine to sit in between the doorbell and 3CX. I has assumed rtpengine was capable of transcoding video as well as audio, however upon proper inspection it appears that isn't the case. Is there a kamailio module that is capable of video transcoding, even if it isn't real time, or at a reduced framerate? As the application is a doorbell, it doesn't need to be perfect. Many thanks, Luke Kenny

1 0

Eternal config - Kamailio and rtpengine
by Mihai Cezar 20 May '21

20 May '21

Hi! I use lxc containers with asterisk wich their are connecting to kamailio, so far so good they work when i put the containers with public ips, but when i switched to private ip I have one-way audio. I tried to with rtpengine but no luck: rtpengine --table=42 --listen-ng=127.0.0.1:2223 --interface=56.12.19.100 --tos=184 --pidfile=/run/rtpengine.pid --no-fallback --log-level=7 --log-facility=local3 the setup looks like this: VM-KAMAILIO-(public ip 56.12.19.100 with static routes for the private IP) --> LxC(n) (with private class 192.168.0.n) The problem i think is when LxC asterisk is sending back the 200 OK from Invite it puts his private ip in the sdp filed: v=0 o=- 2171376102 3 IN IP4 192.168.0.2 s=Asterisk c=IN IP4 192.168.0.2 t=0 0 m=audio 11336 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=ptime:20 a=maxptime:150 a=sendrecv i've loaded the modules, but after this i am stuck.... loadmodule "nathelper.so" loadmodule "rtpengine.so" modparam("nathelper", "received_avp", "$avp(RECEIVED)") modparam("nathelper", "nortpproxy_str", "a=sdpmangled:yes\r\n") modparam("nathelper", "natping_interval", 30) modparam("nathelper", "ping_nated_only", 1) modparam("nathelper", "sipping_bflag", FLB_NATSIPPING) modparam("nathelper", "sipping_from", "sip:pinger@proxy") # params needed for NAT traversal in other modules modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)") modparam("usrloc", "nat_bflag", FLB_NATB) modparam("rtpengine", "rtpengine_sock", "udp:localhost:2223") modparam("rtpengine", "rtpengine_retr", 2) modparam("rtpengine", "hash_table_size", 256) modparam("rtpengine", "hash_table_tout", 600)

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Text transformations s.select and newline char
by Martin Nyström 20 May '21

20 May '21

Hello, I am simply trying to parse a SDP body, read it line by line and save the line into a variable for further processing. It seems when using a newline \n as the delimiter it breaks down with errors. How should I treat this issue and properly managed the newline as delimiter? May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: pv [pv_trans.c:2326]: tr_parse_string(): invalid select transformation: select,$var(i),$var(delimeter)}!! May 17 12:00:00 ip-10-120-120-12 kamailio[12878]: 0(12878) ERROR: <core> [core/pvapi.c:1717]: tr_lookup(): error parsing [{s.select,$var(i),$var(delimeter)}] Block extracted from .cfg sdp_get("$avp(sdp)"); $avp(lines) = $(avp(sdp){line.count}); $var(delimeter) = "\n"; $var(i) = 0; while($var(i) < $avp(lines)) { # This works xlog("L_INFO", "==> Position $var(i): $(avp(sdp){s.select,$var(i),\n}) \n"); # This fails $var(l1) = $(avp(sdp){s.select,$var(i),$var(delimeter)}); # This fails $var(l2) = $(avp(sdp){s.select,$var(i),\n}); # This fails $var(l3) = $(avp(sdp){s.select,$var(i),\\n}); # Supposed to do something funny with the $var(line) here $var(i) = $var(i) + 1; } /M

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5.4 dependency package question
by Andrew Chen 19 May '21

19 May '21

Hi guys, I'm trying to build a deb file of kamailio 5.4 and when doing dpkg-buidpackage it gave a bunch of dependency warnings. I was able to take care a good number of them until I ran into this: *dpkg-checkbuilddeps: **error*: Unmet build dependencies: gcj-jdk libval-dev libxmlrpc-c3-dev None of these packages are in the "apt-cache search" output. Below is a list of modules currently loaded in 5.2.5 and want to use them again: INCLUDE_MODULES="exec rtpengine topoh carrierroute statsd dialplan kex tm tmx sl rr pv maxfwd usrloc textops sdpops siputils xlog sanity ctl acc dispatcher cfgutils permissions domain presence presence_xml nathelper dialog tls htable pike db_mysql userblacklist sqlops websocket xhttp siptrace tcpops jsonrpcs rtimer" Thanks -- Andy Chen Sr. Telephony Lead Engineer 415 516 5535 (M) achen@ <achen(a)thinkingphones.com>fuze.com -- *Confidentiality Notice: The information contained in this e-mail and any attachments may be confidential. If you are not an intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail is strictly prohibited. If you have received this e-mail in error, please notify the sender and permanently delete the e-mail and any attachments immediately. You should not retain, copy or use this e-mail or any attachment for any purpose, nor disclose all or any part of the contents to any other person. Thank you.*

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Permissions sometimes does not find group
by Romain Untereiner 19 May '21

19 May '21

Hello all, I am having some trouble with Permissions module of Kamailio, regarding the allow_source_address_group() function. In 99.9% of the cases the IP of our partner is allowed as expected, but randomly it can fail (returning -1 for the same IP address that was allowed for many other calls in the meantime). I can’t understand why it fails and why only « sometimes » - I confirm this append on the same Kamailio box, with same IP and Port of the partner. In my custom logs: « X.X.X.X:YYYY is allowed through group Z » —> as expected and sometimes (like 1% of the cases): « X.X.X.X:YYYY is not allowed - allow_source_address_group returned -1» It is maybe to note that in the address table, this range is defined as /24 and not /32. Until now it never happened on /32 defined address but I don’t know if it can be correlated. Would someone have a clue on this? Versions: - kamailio 5.5.0 (x86_64/linux) d4c1a1 - debian 9 stretch - postgresql 11.7 Many thanks! Romain Untereiner Co founder at Cantoo www.cantoo.co

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Kamailio as Load Balancer
by Melek Oktay 19 May '21

19 May '21

Hi, I have been investigating distributing incoming/outgoing SIP traffic to behind Kamailio SIP servers in order to scale and other advantages too!. SRV type distribution is not a good option, it is already tested. So, I am trying to deploy Kamailio as a *LoadBalancer* in Tier1 , so it distributes traffic backbone Kamilio servers in Tier 2. There is a good presentation as follows, actually I want to implement it. https://www.kamailio.org/events/2013-KamailioWorld/23-Daniel-Constantin.Mie… However, I could not find sample configurations and sample study ! Would you show me sample configurations that Kamailio uses as a Load Balancer if you have it. Current Kamailio responsibilities in my system are: 1. Registar Server 2. Presence Server 3. Sip proxy server 4. WebSocket Maybe it will be very good to separate *Registar *Server & *Presence *Server, but could not find sample configurations too. Best Regards Melek P.S. If we could collect such configurations, I would share them for community on Github.

2 4

(no subject)
by Melek Oktay 18 May '21

18 May '21

1 0

Question about Kamailio IMS in box
by Ibrahim soumana djibo 17 May '21

17 May '21

Hello, I am new to kamailio. And I Am following the work of Franz Edler. I would like to test it in a local environment without internet connection on ubuntu. What I don't understand is, to download the packages I necessarily need the internet. Do I have to use two network interfaces for the same virtual machine in order to access the internet and make the DNS configuration locally with the second interface? Cordially, *SOUMANA** DJIBO **Ibrahim* *Ingénieur Réseaux & Télécoms* *5 Avenue Emile Baudot, 91300 Massy* +33 07 61 80 20 35 [image: Résultat de recherche d'images pour "logo paris saclay"] https://www.universite-paris-saclay.fr/

2 1

Getting MOS feedback from rtpengine
by Barry Flanagan 17 May '21

17 May '21

Hi Using Kamailio 5.4.4 on Debian Buster. I am trying to get feedback of the MOS scores at call end. However the variables are always <null>. I have the modparams set as follows: # ----- rtpengine params ----- modparam("rtpengine", "rtpengine_sock", "udp:localhost:2223") modparam("rtpengine", "rtpengine_disable_tout", -1) modparam("rtpengine", "rtpengine_tout_ms", 2000) modparam("rtpengine", "rtpengine_allow_op", 1) modparam("rtpengine", "mos_min_pv", "$avp(s:mos_min)") modparam("rtpengine", "mos_max_pv", "$avp(s:mos_max)") modparam("rtpengine", "mos_average_pv", "$avp(s:mos_avg)") modparam("rtpengine", "mos_average_packetloss_pv", "$avp(s:mos_avg_packetloss)") modparam("rtpengine", "mos_average_jitter_pv", "$avp(s:mos_avg_jitter)") modparam("rtpengine", "mos_average_roundtrip_pv", "$avp(s:mos_avg_roundtrip)") I am trying to log the values from within the dialog:end event_route: event_route[dialog:end] { rtpengine_delete(); xlog("L_INFO","mos_avg=$avp(mos_avg), packetloss_avg=$avp(mos_avg_packetloss), jitter_avg=$avp(mos_avg_jitter), latency_avg=$avp(mos_avg_roundtrip), sip_last_reply=$rs - $ci\n"); return; } Am I missing something? I have tried rtpengine_query and rtpengine_manage in place of the _delete and also tried placing this in the BYE handling section of WITHIN_DIALOG but no joy. Any assistance much appreciated! -Barry -- -Barry

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