Hello,

I have tried the setup without docker. I have installed and started rtpengine . I believe, it is successful.

------------------------------------------------------------------------------------------------------------------

*peter@asterisk-PBX:~$ sudo systemctl status rtpengine *
●rtpengine-daemon.service - RTP/media Proxy Daemon
    Loaded: loaded (/lib/systemd/system/rtpengine-daemon.service; enabled; preset: enabled)
    Active: active (running)since Mon 2025-08-11 12:53:50 CEST; 10min ago
      Docs: man:rtpengine(8)
   Process: 635848 ExecStartPre=/usr/sbin/rtpengine-iptables-setup start (code=exited, status=0/SUCCESS)
  Main PID: 635866 (rtpengine)
     Tasks: 20(limit: 6857)
    Memory: 11.4M
       CPU: 209ms
    CGroup: /system.slice/rtpengine-daemon.service
            └─635866 /usr/bin/rtpengine -f -E --no-log-timestamps --pidfile /run/rtpengine/rtpengine-daemon.pid --config-file /etc/rtpengine/rtpen>

Aug 11 12:53:49 asterisk-PBX systemd[1]: Starting rtpengine-daemon.service - RTP/media Proxy Daemon... Aug 11 12:53:50 asterisk-PBX rtpengine[635866]: INFO: [crypto] Generating new DTLS certificate Aug 11 12:53:50 asterisk-PBX rtpengine[635866]: INFO: [core] Startup complete, version 10.5.3.5-1 Aug 11 12:53:50 asterisk-PBX systemd[1]: Started rtpengine-daemon.service - RTP/media Proxy Daemon. Aug 11 12:55:20 asterisk-PBX rtpengine[635866]: INFO: [control] Received command 'ping' from 127.0.0.1:50208 Aug 11 12:55:20 asterisk-PBX rtpengine[635866]: INFO: [control] Replying to 'ping' from 127.0.0.1:50208 (elapsed time 0.000001 sec)
lines 1-18/18 (END)

------------------------------------------------------------------------------------


I have installed kamailio using the command

sudo apt-get install kamailio kamailio-mysql-modules kamailio-websocket-modules 
kamailio-tls-modules

Then copied the privkey.pem and fullchain.pem to /etc/kamailio. The config file from the florian-h05 project to /etc/kamailio. Kamailio at least seems to start sucessfully.

----------------------------------------------------------------------------
*
*
*peter@asterisk-PBX:~**$ sudo systemctl status kamailio*
●kamailio.service - Kamailio - the Open Source SIP Server
    Loaded: loaded (/lib/systemd/system/kamailio.service; enabled; preset: enabled)
    Active: active (running)since Mon 2025-08-11 12:55:20 CEST; 12min ago
      Docs: man:kamailio(8)
   Process: 635920 ExecStart=/usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f $CFGFILE -m $SHM_MEMORY -M $PKG_MEMORY (code=exited, status=0/SUC>
  Main PID: 635922 (kamailio)
     Tasks: 17(limit: 6857)
    Memory: 16.3M
       CPU: 1.164s
    CGroup: /system.slice/kamailio.service
            ├─635922 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635923 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635924 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635925 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635926 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635927 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635928 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635929 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635930 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635931 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635932 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635933 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635934 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635935 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8             ├─635936 /usr/sbin/kamailio -P /run/kamailio/kamailio.pid -f /etc/kamailio/kamailio.cfg -m 64 -M 8
lines 1-25

__________________________________________________________________________


But it doesn't work. My client (openhab widget based on JsSIP, **[email protected]) doesn't establish a connection to the doorbird **[email protected]. And it seems to be the same problem like the docker version has. The websocket from the client side seems to close immediately. The SIP Client of my doorbird (**[email protected]) definitly works. I can call it from zoiper successfully.

The option #!WITH_DEBUG also doesn't give me a hint.

-----------------------------------------------------------------------------
peter@asterisk-PBX:~$ sudo journalctl -r | grep kamailio | more


*Aug 11 12:56:24 asterisk-PBX /usr/sbin/kamailio[635932]: INFO: <script>: WebSocket connection from 192.168.2.151:36894 has closed * Aug 11 12:56:17 asterisk-PBX /usr/sbin/kamailio[635936]: INFO: <script>: START: REGISTER from sip:**[email protected] (IP:192.168.2.151:36894) Aug 11 12:56:01 asterisk-PBX /usr/sbin/kamailio[635935]: INFO: <script>: START: ACK from sip:**[email protected] (IP:192.168.2.151:36894) Aug 11 12:56:01 asterisk-PBX /usr/sbin/kamailio[635935]: INFO: <script>: START: INVITE from sip:**[email protected] (IP:192.168.2.151:36894) Aug 11 12:55:22 asterisk-PBX /usr/sbin/kamailio[635934]: INFO: <script>: START: REGISTER from sip:**[email protected] (IP:192.168.2.151:36894) Aug 11 12:55:22 asterisk-PBX /usr/sbin/kamailio[635934]: INFO: <script>: HTTP Request Received Aug 11 12:55:20 asterisk-PBX systemd[1]: Started kamailio.service - Kamailio - the Open Source SIP Server. Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635930]: INFO: ctl [io_listener.c:213]: io_listen_loop(): io_listen_loop:  using epoll_lt io watch method (config) Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635923]: INFO: rtpengine [rtpengine.c:2929]: rtpp_test(): rtpengine instance <udp:127.0.0.1:22222> found, support for it enabled Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:735]: set_verification(): TLSc<default>: Server MUST present valid certificate Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:389]: ksr_tls_fill_missing(): TLSc<default>: verify_client=0 Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:386]: ksr_tls_fill_missing(): TLSc<default>: verify_depth=9 Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:382]: ksr_tls_fill_missing(): TLSc<default>: verify_certificate=1 Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:379]: ksr_tls_fill_missing(): TLSc<default>: private_key='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:372]: ksr_tls_fill_missing(): TLSc<default>: cipher_list='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:364]: ksr_tls_fill_missing(): TLSc<default>: require_certificate=1 Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:361]: ksr_tls_fill_missing(): TLSc<default>: crl='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:354]: ksr_tls_fill_missing(): TLSc<default>: ca_path='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:347]: ksr_tls_fill_missing(): TLSc<default>: ca_list='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:340]: ksr_tls_fill_missing(): TLSc<default>: certificate='(null)' Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:328]: ksr_tls_fill_missing(): TLSc<default>: tls_method=20 Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:750]: set_verification(): TLSs<default>: No client certificate required and no checks performed Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: NOTICE: tls [tls_domain.c:1144]: ksr_tls_fix_domain(): registered server_name callback handler for socket [:0], server_name='<default>' ... Aug 11 12:55:20 asterisk-PBX /usr/sbin/kamailio[635922]: INFO: tls [tls_domain.c:389]: ksr_tls_fill_missing(): TLSs<default>: verify_client=0

----------------------------------------------------------------------

My openhab client doesn't register successfully at the speedport smart router.

When I open the network console of the browser (ctrl-shift-J) I see the following when I try to dial **[email protected]


---------------------------------------------------

ACK sip:**[email protected] SIP/2.0
Via: SIP/2.0/WSS vd1ol3bgpp3k.invalid;branch=z9hG4bK1779381
Max-Forwards: 69
To: <sip:**[email protected]>;tag=5532e97d005227a861814c798ae9fc63-f7e00000
From: <sip:**[email protected]>;tag=69mva3r0pg
Call-ID: r4ivvc0u742gafkurin7
CSeq: 3667 ACK
Allow: INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO,NOTIFY
Supported: outbound
User-Agent: JsSIP 3.10.1
Content-Length: 0
  +0ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:WebSocketInterface send() +2ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession receiveInviteResponse() +6ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession session failed +0ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession emit "_failed" +0ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession close() +0ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession close() | closing local MediaStream +1ms
app.725b24ffcb85453fcf4b.js:1 JsSIP:RTCSession emit "failed" +0ms
*app.06ad2752b5cdbdf8cc97.js:2 oh-sipclient: Call failed. Reason: Not Found*
app.725b24ffcb85453fcf4b.js:1 JsSIP:InviteClientTransaction Timer D expired for transaction z9hG4bK1779381 +1m

------------------------------------
*
*
I don't understand the message *app.06ad2752b5cdbdf8cc97.js:2 oh-sipclient: Call failed. Reason: Not Found*
*
*
*Best regards*
*
*
*Peter
*
*
*
Am 08.08.25 um 16:54 schrieb Richard Robson via sr-users:

the Github link you originally posted with does have a basic websockets, tls and stp engine script in it
https://github.com/florian-h05/webrtc-sip-gw/blob/main/config/kamailio/kamailio.cfg

maybe try without Docker and get things running in an environment that you can change easily. you can then get access to all the ports and traffic you need without extra docker configuration.

I use a docker environment for testing, which uses sipp to emulate traffic and it spits out a set of logs  and  pcaps in needed, but again that a set of proffestional level tools, I use just to confirm the scripts sun as expected. each test needs to be configured and reads the lastest script I provide. also I need to setup myslq in the docker to provide the requied configs for the modules being used, dialplan, drouting, dispatcher, etc.

try running kamailio on 1 vm and rtpengine on another, then setup the network for the VMs. have your endpoints connect o the VMs LAN. check the traffic is working before hand, via Pings and telnet. once your platform is stable, then try and get the different elements working.

tls can be a pain to get working initally, make sure you have valid certs etc. then get RTPengine working and then the websockets.

I'm afraid Its going to be difficult to aid you further without doing it all for you. Like Henning said, Its a steep learning curve and can be pretty daunting.

Think of Kamailio as a framework not an end solution. You need to build the end solution from the framework provided. Again think of the github repo as a starting point for your solution. Once you get the desired outcome from your testing, you could probably dockerize that with the egress and ingress ports open to your local LAN.



Hope you get your solution working.


Richard

On 08/08/2025 08:49, Peter Walber via sr-users wrote:

Hi,


I can imagine that the problems come from the configuration within the docker container. IP address and ports are somehow automatically defined and  I'm not sure if these paramerts are correct. And I can not enter the routing scripts for HOMER intergration in the docker container.

Therefore , I want to install and run kamailio with rtpengine directly outside a docker container on my debian vm.

But I'm pretty much confused by the default kamailio configuration file with all the parameters, directives and loadmodules.

Can somebody send me a basic configuration file for *kamailio with websockets, TLS Support and rtpengine. *

Thanks and regards

Peter
Am 07.08.25 um 19:24 schrieb Richard Robson via sr-users:

Hi,

You could run up a Homer server and send the traffic to there from Kamailio with the sipcapture module. It should give you the ingress and egress packets unencrypted from the script.

Hope that helps

Richard

On 07/08/2025 17:35, peter walber via sr-users wrote:

Hello,


I can use wireshark to capture and filter packets now. But the payload ist encrypted and I don't know how to decrypt the app-data.

I can observe a lot of packets which are trevelling from the SIP Client to the webrtc-sip-gw. But can not decrypt the payload.


I have opened the network console of google chrom. I can see that the client starts the SIP request using JsSIP

**72 is my doorbird

**73 is my openhab SIP Client

---------------------------------------------------------


INVITE sip:**[email protected] SIP/2.0
Via: SIP/2.0/WSS r64og133ol2n.invalid;branch=z9hG4bK2639027
Max-Forwards: 69
To: <sip:**[email protected]>
From: <sip:**[email protected]>;tag=0l5gn2o04p
Call-ID: k57isvj3jnib42sone96
CSeq: 6684 INVITE
Contact: <sip:[email protected];transport=ws;ob>
Content-Type: application/sdp
Allow: INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO,NOTIFY
Supported: ice,replaces,outbound
User-Agent: JsSIP 3.10.1
Content-Length: 1705
 v=0
o=- 8248900579316048806 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE 0
a=extmap-allow-mixed
a=msid-semantic: WMS c8e94492-8d01-4aa1-9023-497510a9054b
m=audio 43416 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126
c=IN IP4 192.168.2.151
a=rtcp:9 IN IP4 0.0.0.0
a=candidate:1715666646 1 udp 2122260223 192.168.2.151 43416 typ host generation 0 network-id 1 a=candidate:2923572520 1 udp 2122194687 172.17.0.1 34664 typ host generation 0 network-id 2 a=candidate:2565352002 1 tcp 1518280447 192.168.2.151 9 typ host tcptype active generation 0 network-id 1 a=candidate:1357445564 1 tcp 1518214911 172.17.0.1 9 typ host tcptype active generation 0 network-id 2
a=ice-ufrag:vZWG
a=ice-pwd:NWYzQwxQ4nP4FdcL6XpCl66/
a=ice-options:trickle
a=fingerprint:sha-256 80:22:F4:1E:B4:94:EF:F8:44:FA:E9:CA:72:DA:75:F3:99:1F:10:8D:B4:11:B3:65:3D:F9:44:67:28:31:CB:E5
a=setup:actpass
a=mid:0
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=sendrecv
a=msid:c8e94492-8d01-4aa1-9023-497510a9054b 8cd550e3-9b06-4e06-af55-f31b5392bafd
a=rtcp-mux
a=rtcp-rsize
a=rtpmap:111 opus/48000/2
a=rtcp-fb:111 transport-cc
a=fmtp:111 minptime=10;useinbandfec=1
a=rtpmap:63 red/48000/2
a=fmtp:63 111/111
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:13 CN/8000
a=rtpmap:110 telephone-event/48000
a=rtpmap:126 telephone-event/8000
a=ssrc:1295466586 cname:7i+lr9FQ7qgsLxhh
a=ssrc:1295466586 msid:c8e94492-8d01-4aa1-9023-497510a9054b 8cd550e3-9b06-4e06-af55-f31b5392bafd
---------------------------------------------

But I also see the obviously  kamilio responding with timeout

------------------------------------------------------------------------------------------

SIP/2.0 408 Request Timeout
Via: SIP/2.0/WSS r64og133ol2n.invalid;branch=z9hG4bK2315704;rport=58076;received=192.168.2.151 To: <sip:**[email protected]>;tag=5532e97d005227a861814c798ae9fc63-c1c00000
From: <sip:**[email protected]>;tag=kfjl6vah0u
Call-ID: p928jbnb7d2spbvdgoepjt
CSeq: 1 REGISTER
Server: kamailio (5.6.3 (x86_64/linux))
Content-Length: 0
 --------------------------------------------------------------------

does it help to analyse ?

Regards

Peter


Am 07.08.25 um 14:07 schrieb Henning Westerholt via sr-users:

Hello,

have a look e.g. with tcpdump and wireshark what exactly happens. Maybe the connection is closed from one party. Sometimes TCP keep-alive or SIP REGISTER time intervals needs to be adapted to keep a connection open, e.g. in NAT scenarios.

Cheers,

Henning

*From:*Peter Walber via sr-users <[email protected]>
*Sent:* Donnerstag, 7. August 2025 09:56
*To:* [email protected]
*Cc:* Peter Walber <[email protected]>
*Subject:* [SR-Users] problems using kamailio

Hello,

I try to use kamailio as webrtc-sip-gateway between my openhab smart home system and my doorbird doorbell with phone and camera.

I try to use the product of "https://github.com/florian-h05/webrtc-sip-gw"; <https://github.com/florian-h05/webrtc-sip-gw>. Which integrates kamailio together with rtpengine to the gateway.

I want to use openhab as SIP Client and have a Telekom Speedport Smart 4 Router on the other side. The webrtc-sip-gw from florian-h05 shall be the software between Openhab and the speedport smart 4. On the speedport smart router the SIP Server is enabled and configured. I can sucessfully call with zoiper extern phone numbers. The doorbird als is configured correctly. I can call the doorbird with my zioper softphone using the SIP interface of the doorbird. The runtime system is a  docker container on debian 12.

I want to call the doorbird by SIP from my openhab SIP client.

I can initiate the call, but it doesn't establish

Here is the log from the docker container.

---------------------------------------------------------------------------------------------------
2025-08-07T07:46:57.384687165Z  9(52) INFO: <script>: HTTP Request Received 2025-08-07T07:46:57.391479050Z  9(52) INFO: <script>: START: REGISTER from sip:**[email protected] (IP:192.168.2.185:39510) 2025-08-07T07:46:57.391516534Z  9(52) INFO: <script>: Current Contact header: <sip:[email protected];transport=ws> <sip:[email protected];transport=ws>;+sip.ice;reg-id=1;+sip.instance="<urn:uuid:243e461d-f0cb-4c09-9a63-f57c9bba8d6b>";expires=600 2025-08-07T07:46:57.391526535Z  9(52) INFO: <script>: Setting new Contact header: <sip:**[email protected]:5060> <sip:**[email protected]:5060> 2025-08-07T07:47:00.195739350Z  9(52) INFO: <script>: START: INVITE from sip:**[email protected] (IP:192.168.2.185:39510) 2025-08-07T07:47:00.195800424Z  9(52) INFO: <script>: Current Contact header: <sip:[email protected];transport=ws;ob> <sip:[email protected];transport=ws;ob> 2025-08-07T07:47:00.195811886Z  9(52) INFO: <script>: Setting new Contact header: <sip:[email protected];transport=ws;ob;alias=192.168.2.185~39510~6;alias=192.168.2.185~39510~6> <sip:[email protected];transport=ws;ob;alias=192.168.2.185~39510~6;alias=192.168.2.185~39510~6> 2025-08-07T07:47:00.196163528Z  9(52) INFO: <script>: MANAGE_BRANCH: New branch [0] to sip:**[email protected] 2025-08-07T07:47:00.196181228Z  9(52) INFO: <script>: NATMANAGE branch_id:0 ruri: sip:**[email protected], method:INVITE, status:<null>, extra_id: z9hG4bK44082210, rtpengine_manage: replace-origin replace-session-connection via-branch=extra rtcp-mux-demux SDES-off ICE=remove RTP/AVP 2025-08-07T07:47:00.196608235Z INFO: [penvq8f06ehafutk9ivf]: [control] Received command 'offer' from 127.0.0.1:50790 2025-08-07T07:47:00.196625247Z NOTICE: [penvq8f06ehafutk9ivf]: [core] Creating new call 2025-08-07T07:47:00.198519843Z INFO: [penvq8f06ehafutk9ivf]: [control] Replying to 'offer' from 127.0.0.1:50790 (elapsed time 0.001979 sec) 2025-08-07T07:47:01.927528447Z  9(52) INFO: <script>: START: CANCEL from sip:**[email protected] (IP:192.168.2.185:39510) 2025-08-07T07:47:01.927577111Z  9(52) INFO: <script>: Current Contact header: <null> 2025-08-07T07:47:01.927586439Z  9(52) INFO: <script>: Setting new Contact header: <null> 2025-08-07T07:47:09.169489716Z  7(50) INFO: <script>: WebSocket connection from 192.168.2.185:39510 has closed *2025-08-07T07:47:27.355185671Z  2(45) WARNING: tm [../../core/forward.h:203]: msg_send_buffer(): TCP/TLS connection for WebSocket could not be found* 2025-08-07T07:47:27.914769340Z  9(52) INFO: <script>: HTTP Request Received 2025-08-07T07:47:27.951608347Z  9(52) INFO: <script>: START: REGISTER from sip:**[email protected] (IP:192.168.2.185:44816) 2025-08-07T07:47:27.951663073Z  9(52) INFO: <script>: Current Contact header: <sip:[email protected];transport=ws> <sip:[email protected];transport=ws>;+sip.ice;reg-id=1;+sip.instance="<urn:uuid:39eac0ca-0aea-4526-a5c7-0516bc8a2d71>";expires=600 2025-08-07T07:47:27.951915520Z  9(52) INFO: <script>: Setting new Contact header: <sip:**[email protected]:5060> <sip:**[email protected]:5060> 2025-08-07T07:47:30.168546446Z  2(45) INFO: <script>: BRANCH FAILED: z9hG4bK4408221 + 0INFO: [penvq8f06ehafutk9ivf]: [control] Received command 'delete' from 127.0.0.1:36296 2025-08-07T07:47:30.168587880Z INFO: [penvq8f06ehafutk9ivf]: [core] Deleting call branch '' (via-branch 'z9hG4bK44082210') 2025-08-07T07:47:30.168597011Z INFO: [penvq8f06ehafutk9ivf]: [core] Call branch '' (via-branch 'z9hG4bK44082210') deleted, no more branches remaining 2025-08-07T07:47:30.168605215Z INFO: [penvq8f06ehafutk9ivf]: [core] Deleting entire call 2025-08-07T07:47:30.168612883Z INFO: [penvq8f06ehafutk9ivf]: [core] Final packet stats: 2025-08-07T07:47:30.168620604Z INFO: [penvq8f06ehafutk9ivf]: [core] --- Tag 'utenlull77', created 0:30 ago for branch '' 2025-08-07T07:47:30.168628359Z INFO: [penvq8f06ehafutk9ivf]: [core] ---     subscribed to '' 2025-08-07T07:47:30.168636445Z INFO: [penvq8f06ehafutk9ivf]: [core] ---     subscription for '' 2025-08-07T07:47:30.168645446Z INFO: [penvq8f06ehafutk9ivf]: [core] ------ Media #1 (audio over UDP/TLS/RTP/SAVPF) using unknown codec 2025-08-07T07:47:30.168653691Z INFO: [penvq8f06ehafutk9ivf]: [core] --------- Port 192.168.2.209:23484 <>   192.168.2.185:60650, SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:47:30.168661939Z INFO: [penvq8f06ehafutk9ivf]: [core] --- Tag '', created 0:30 ago for branch 'z9hG4bK44082210' 2025-08-07T07:47:30.168669844Z INFO: [penvq8f06ehafutk9ivf]: [core] ---     subscribed to 'utenlull77' 2025-08-07T07:47:30.168677713Z INFO: [penvq8f06ehafutk9ivf]: [core] ---     subscription for 'utenlull77' 2025-08-07T07:47:30.168685661Z INFO: [penvq8f06ehafutk9ivf]: [core] ------ Media #1 (audio over RTP/AVP) using unknown codec 2025-08-07T07:47:30.168693705Z INFO: [penvq8f06ehafutk9ivf]: [core] --------- Port 192.168.2.209:23472 <>                :0    , SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:47:30.168718608Z INFO: [penvq8f06ehafutk9ivf]: [core] --------- Port 192.168.2.209:23473 <>                :0 (RTCP), SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:47:30.168728065Z INFO: [penvq8f06ehafutk9ivf]: [control] Replying to 'delete' from 127.0.0.1:36296 (elapsed time 0.000505 sec) *2025-08-07T07:47:30.169042099Z  2(45) INFO: <script>: Failure: <null> 2(45) WARNING: tm [../../core/forward.h:203]: msg_send_buffer(): TCP/TLS connection for WebSocket could not be found* 2025-08-07T07:47:30.265075785Z  9(52) INFO: <script>: START: INVITE from sip:**[email protected] (IP:192.168.2.185:44816) 2025-08-07T07:47:30.265125134Z  9(52) INFO: <script>: Current Contact header: <sip:[email protected];transport=ws;ob> <sip:[email protected];transport=ws;ob> 2025-08-07T07:47:30.265135557Z  9(52) INFO: <script>: Setting new Contact header: <sip:[email protected];transport=ws;ob;alias=192.168.2.185~44816~6;alias=192.168.2.185~44816~6> <sip:[email protected];transport=ws;ob;alias=192.168.2.185~44816~6;alias=192.168.2.185~44816~6> 2025-08-07T07:47:30.265484502Z  9(52) INFO: <script>: MANAGE_BRANCH: New branch [0] to sip:**[email protected] 2025-08-07T07:47:30.265664116Z  9(52) INFO: <script>: NATMANAGE branch_id:0 ruri: sip:**[email protected], method:INVITE, status:<null>, extra_id: z9hG4bK16860370, rtpengine_manage: replace-origin replace-session-connection via-branch=extra rtcp-mux-demux SDES-off ICE=remove RTP/AVP 2025-08-07T07:47:30.265819591Z INFO: [412n0o8dedgair81t70p]: [control] Received command 'offer' from 127.0.0.1:50790 2025-08-07T07:47:30.265979425Z NOTICE: [412n0o8dedgair81t70p]: [core] Creating new call 2025-08-07T07:47:30.267497852Z INFO: [412n0o8dedgair81t70p]: [control] Replying to 'offer' from 127.0.0.1:50790 (elapsed time 0.001599 sec) 2025-08-07T07:47:30.469565385Z  9(52) INFO: <script>: START: CANCEL from sip:**[email protected] (IP:192.168.2.185:44816) 2025-08-07T07:47:30.469629711Z  9(52) INFO: <script>: Current Contact header: <null> 2025-08-07T07:47:30.469645116Z  9(52) INFO: <script>: Setting new Contact header: <null> 2025-08-07T07:47:41.207672567Z  7(50) INFO: <script>: WebSocket connection from 192.168.2.185:44816 has closed 2025-08-07T07:47:57.917754216Z  2(45) WARNING: tm [../../core/forward.h:203]: msg_send_buffer(): TCP/TLS connection for WebSocket could not be found 2025-08-07T07:48:00.230412646Z  2(45) INFO: <script>: BRANCH FAILED: z9hG4bK1686037 + 0INFO: [412n0o8dedgair81t70p]: [control] Received command 'delete' from 127.0.0.1:36296 2025-08-07T07:48:00.230457143Z INFO: [412n0o8dedgair81t70p]: [core] Deleting call branch '' (via-branch 'z9hG4bK16860370') 2025-08-07T07:48:00.230466718Z INFO: [412n0o8dedgair81t70p]: [core] Call branch '' (via-branch 'z9hG4bK16860370') deleted, no more branches remaining 2025-08-07T07:48:00.230475640Z INFO: [412n0o8dedgair81t70p]: [core] Deleting entire call 2025-08-07T07:48:00.230483968Z INFO: [412n0o8dedgair81t70p]: [core] Final packet stats: 2025-08-07T07:48:00.230491909Z INFO: [412n0o8dedgair81t70p]: [core] --- Tag 'hc7h5imu96', created 0:30 ago for branch '' 2025-08-07T07:48:00.230518917Z INFO: [412n0o8dedgair81t70p]: [core] ---     subscribed to '' 2025-08-07T07:48:00.230528302Z INFO: [412n0o8dedgair81t70p]: [core] ---     subscription for '' 2025-08-07T07:48:00.230537387Z INFO: [412n0o8dedgair81t70p]: [core] ------ Media #1 (audio over UDP/TLS/RTP/SAVPF) using unknown codec 2025-08-07T07:48:00.230545867Z INFO: [412n0o8dedgair81t70p]: [core] --------- Port 192.168.2.209:23400 <>   192.168.2.185:46431, SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:48:00.230554949Z INFO: [412n0o8dedgair81t70p]: [core] --- Tag '', created 0:30 ago for branch 'z9hG4bK16860370' 2025-08-07T07:48:00.230563124Z INFO: [412n0o8dedgair81t70p]: [core] ---     subscribed to 'hc7h5imu96' 2025-08-07T07:48:00.230570851Z INFO: [412n0o8dedgair81t70p]: [core] ---     subscription for 'hc7h5imu96' 2025-08-07T07:48:00.230578827Z INFO: [412n0o8dedgair81t70p]: [core] ------ Media #1 (audio over RTP/AVP) using unknown codec 2025-08-07T07:48:00.230587091Z INFO: [412n0o8dedgair81t70p]: [core] --------- Port 192.168.2.209:23494 <>                :0    , SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:48:00.230595631Z INFO: [412n0o8dedgair81t70p]: [core] --------- Port 192.168.2.209:23495 <>                :0 (RTCP), SSRC 0, 0 p, 0 b, 0 e, 30 ts 2025-08-07T07:48:00.230603868Z INFO: [412n0o8dedgair81t70p]: [control] Replying to 'delete' from 127.0.0.1:36296 (elapsed time 0.000253 sec) *2025-08-07T07:48:00.230753116Z  2(45) INFO: <script>: Failure: <null> 2(45) WARNING: tm [../../core/forward.h:203]: msg_send_buffer(): TCP/TLS connection for WebSocket could not be found*

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

especially the bold lines  confuse me. Why is the TCP/TLS closed and can not be found ? Could that be the problem ?

Thanks for some help and best regards

Peter


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