[SR-Users] loose_route() and FQDN
Daniel-Constantin Mierla
miconda at gmail.com
Fri May 14 13:23:23 CEST 2021
As an update, in the development version there is no is_first_hop(mode)
and when mode is 1, it should skip checking for ip and matching src ip
against it, so it should work with FQDN, expecting the config admin to
restrict looping, etc... for accurate results.
Cheers,
Daniel
On 13.05.21 17:04, Igor Olhovskiy wrote:
>
> In a case, if someone will find this topic via search
>
> is_first_hop() according to documentation is working only with IP
> addresses in a case of replies. So, it's fully correct behavior.
>
> My bad.
>
> Regards,
> Igor
> On 10.05.2021 08:55, Igor Olhovskiy wrote:
>>
>> Sergiu,
>>
>> Actually, yes
>>
>> Problem is in order of checking in this function
>>
>> https://github.com/kamailio/kamailio/blob/02240711239149e2f5c4890a70ab158d10fa8187/src/modules/siputils/sipops.c#L183
>>
>> if (((ip = str2ip(&(puri.host))) == NULL)
>> && ((ip = str2ip6(&(puri.host))) == NULL)) {
>> LM_DBG("uri host is not an ip address\n");
>> return -1;
>> }
>>
>> So, it's checking if Record-Route is an IP address before actually
>> calling *check_self()* function. I'll add an issue.
>>
>> Regards,
>> Igor
>> On 08.05.2021 02:42, Sergiu Pojoga wrote:
>>> May be related to a previous topic about is_first_hop() and 'myself'
>>>
>>> https://lists.kamailio.org/pipermail/sr-users/2018-October/103261.html
>>> <https://lists.kamailio.org/pipermail/sr-users/2018-October/103261.html>
>>>
>>> On Fri, May 7, 2021 at 7:22 PM David Villasmil
>>> <david.villasmil.work at gmail.com
>>> <mailto:david.villasmil.work at gmail.com>> wrote:
>>>
>>>
>>> Can you share a trace?
>>>
>>> On Fri, 7 May 2021 at 21:12, Igor Olhovskiy
>>> <igorolhovskiy at gmail.com <mailto:igorolhovskiy at gmail.com>> wrote:
>>>
>>> Yes. It passesuri == myself condition on auth.
>>>
>>> Regards,
>>> Igor
>>>
>>> On 07.05.2021 17:32, David Villasmil wrote:
>>>> Have you tried verifying Kamailio actually believes the
>>>> FQDN is itself?
>>>>
>>>> Regards,
>>>>
>>>> David Villasmil
>>>> email: david.villasmil.work at gmail.com
>>>> <mailto:david.villasmil.work at gmail.com>
>>>> phone: +34669448337
>>>>
>>>>
>>>> On Fri, May 7, 2021 at 4:18 PM Igor Olhovskiy
>>>> <igorolhovskiy at gmail.com <mailto:igorolhovskiy at gmail.com>>
>>>> wrote:
>>>>
>>>> David,
>>>>
>>>> Yes, I did added it, means it was there, but
>>>> is_first_hop() was blocking adding it. I think it's
>>>> some leftovers from default config.
>>>>
>>>> So, my conclusion, that is_first_hop() is ok with IP
>>>> addresses, but not ok with FQDN in route. Although FQDN
>>>> is added as alias
>>>>
>>>> Regards,
>>>> Igor
>>>>
>>>> On 07.05.2021 16:07, David Villasmil wrote:
>>>>> Did you add the handle_ruri_alias() as suggested by
>>>>> Daniel? I had something like this where I would get
>>>>> “unable to resolve blah blah blah" and it’s because
>>>>> the RURI is the actual wss “address” which is
>>>>> unresolvable, so executing the function forces
>>>>> kamailio to take the alias instead.
>>>>>
>>>>>
>>>>> On Fri, 7 May 2021 at 13:48, Igor Olhovskiy
>>>>> <igorolhovskiy at gmail.com
>>>>> <mailto:igorolhovskiy at gmail.com>> wrote:
>>>>>
>>>>> Daniel,
>>>>>
>>>>> Seems to be it's really the case, but with other
>>>>> function
>>>>>
>>>>> With FQDN in RR
>>>>>
>>>>>
>>>>> |is_first_hop()|
>>>>>
>>>>> is not acting correctly for reply.
>>>>>
>>>>>> For incoming SIP replies, it means that top
>>>>>> Record-Route URI is 'myself' and source address
>>>>>> is not matching it
>>>>> But in Record-Route we have "myself", but
>>>>> *is_first_hop()* returning 0.
>>>>>
>>>>> Thanks!
>>>>>
>>>>> Regards,
>>>>> Igor
>>>>>
>>>>> On 07.05.2021 14:22, Daniel-Constantin Mierla wrote:
>>>>>>
>>>>>> OK, because looping was something that should not
>>>>>> have happened in this case.
>>>>>>
>>>>>> Then the problem is that you do not do
>>>>>> nat-traversal-like processing for
>>>>>> websocket/webrtc traffic. You have to use
>>>>>> set_contact_alias() + handle_ruri_alias() because
>>>>>> the webrtc endpoints do not set "valid" contact
>>>>>> addresses.
>>>>>>
>>>>>> Cheers,
>>>>>> Daniel
>>>>>>
>>>>>> On 07.05.21 14:13, Igor Olhovskiy wrote:
>>>>>>>
>>>>>>> Ah, no, sorry, I was wrong at this one,
>>>>>>>
>>>>>>> This just is not sent with "unable to resolve
>>>>>>> address toleivu2gdbh.invalid".
>>>>>>>
>>>>>>> Sorry. Looping were something else during my
>>>>>>> tests, this just with *advertise* added
>>>>>>>
>>>>>>> Regards,
>>>>>>> Igor
>>>>>>> On 07.05.2021 14:02, Daniel-Constantin Mierla wrote:
>>>>>>>>
>>>>>>>> This looks like incoming ACK, because there is
>>>>>>>> only one Via header, so it is not what proxy
>>>>>>>> forwards -- that one is relevant to see what
>>>>>>>> headers were consumed and added.
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>> Daniel
>>>>>>>>
>>>>>>>> On 07.05.21 13:51, Igor Olhovskiy wrote:
>>>>>>>>> Sure.
>>>>>>>>>
>>>>>>>>> ACK
>>>>>>>>> sip:88290 at toleivu2gdbh.invalid;transport=wss
>>>>>>>>> SIP/2.0
>>>>>>>>> Via: SIP/2.0/UDP
>>>>>>>>> A_IP_ADDRESS:5060;rport;branch=z9hG4bKPj8d05548a-91ef-4332-8617-32f8eeebf8f2
>>>>>>>>> From:
>>>>>>>>> <sip:88881 at A_IP_ADDRESS>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d
>>>>>>>>> To: <sip:88290 at KAMAILIO_FQDN>;tag=hvra7mj3q0
>>>>>>>>> Call-ID: 46f44741-d155-4dd5-8fd8-78e540fc1acb
>>>>>>>>> CSeq: 18326 ACK
>>>>>>>>> Route:
>>>>>>>>> <sip:KAMAILIO_FQDN;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>> Route:
>>>>>>>>> <sip:KAMAILIO_FQDN:8089;transport=ws;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>> Max-Forwards: 70
>>>>>>>>> User-Agent: Asterisk PBX 13.33.0
>>>>>>>>> Content-Length: 0
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> By loop I meant, Kamailio just relaying it
>>>>>>>>> back to self and discard.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Igor
>>>>>>>>> On 07.05.2021 13:48, Daniel-Constantin Mierla
>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>> Can you paste the ACK that loops, after being
>>>>>>>>>> handled once by Kamailio?
>>>>>>>>>>
>>>>>>>>>> Cheers,
>>>>>>>>>> Daniel
>>>>>>>>>>
>>>>>>>>>> On 07.05.21 13:25, Igor Olhovskiy wrote:
>>>>>>>>>>>
>>>>>>>>>>> Daniel,
>>>>>>>>>>>
>>>>>>>>>>> Yes, it is.
>>>>>>>>>>>
>>>>>>>>>>> alias=...
>>>>>>>>>>>
>>>>>>>>>>> Also tried with
>>>>>>>>>>>
>>>>>>>>>>> listen = IP advertise FQDN
>>>>>>>>>>>
>>>>>>>>>>> same behavior, loose_route() stops acting
>>>>>>>>>>> correctly.
>>>>>>>>>>>
>>>>>>>>>>> PS: Forgot to add, Kamailio 5.4.3 / 5.4.4
>>>>>>>>>>>
>>>>>>>>>>> Regards,
>>>>>>>>>>> Igor
>>>>>>>>>>> On 07.05.2021 13:21, Daniel-Constantin
>>>>>>>>>>> Mierla wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hello,
>>>>>>>>>>>>
>>>>>>>>>>>> is the KAMAILIO_FQDN set as local domain
>>>>>>>>>>>> for Kamailio (via alias parameter or domain
>>>>>>>>>>>> module+register myself)?
>>>>>>>>>>>>
>>>>>>>>>>>> Cheers,
>>>>>>>>>>>> Daniel
>>>>>>>>>>>>
>>>>>>>>>>>> On 07.05.21 11:17, Igor Olhovskiy wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> Hello,
>>>>>>>>>>>>>
>>>>>>>>>>>>> I saw there are some topics on this
>>>>>>>>>>>>> already and carefully walked through all
>>>>>>>>>>>>> of them, but can't solve following issue.
>>>>>>>>>>>>>
>>>>>>>>>>>>> For a reason I do need that in
>>>>>>>>>>>>> Record-Route header sent to endpoint would
>>>>>>>>>>>>> present FQDN. If it matters, it's UDP/WSS
>>>>>>>>>>>>> conversion done on Kamailio.
>>>>>>>>>>>>>
>>>>>>>>>>>>> So, scheme is quite simple
>>>>>>>>>>>>>
>>>>>>>>>>>>> Enpoint A ->UDP-> Kamailio ->WSS->
>>>>>>>>>>>>> Endpoint B (NAT)
>>>>>>>>>>>>>
>>>>>>>>>>>>> Main issue here, that if in Record-Route
>>>>>>>>>>>>> headers it's FQDN, but not IP addresses,
>>>>>>>>>>>>> on a new transactions with a dialog (ACK
>>>>>>>>>>>>> on 200, PRACK, BYE),
>>>>>>>>>>>>> Kamailio*loose_route()* function resolves
>>>>>>>>>>>>> address of destination not current dialog,
>>>>>>>>>>>>> but actual R-URI (or itself, if R-URI is
>>>>>>>>>>>>> something from WebRTC world) that is not
>>>>>>>>>>>>> correct due to NAT.
>>>>>>>>>>>>>
>>>>>>>>>>>>> If in RR headers IP addresses are present
>>>>>>>>>>>>> - all is working as expected.
>>>>>>>>>>>>>
>>>>>>>>>>>>> As an example (RR with FQDN)
>>>>>>>>>>>>>
>>>>>>>>>>>>> B answers 200
>>>>>>>>>>>>>
>>>>>>>>>>>>> SIP/2.0 200 OK
>>>>>>>>>>>>> Record-Route:
>>>>>>>>>>>>> <sip:KAMAILIO_FQDN:8089;transport=ws;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>>>>>> Record-Route:
>>>>>>>>>>>>> <sip:KAMAILIO_FQDN;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>>>>>> Via: SIP/2.0/UDP
>>>>>>>>>>>>> <A_IP_ADDRESS>:5060;received=A IP
>>>>>>>>>>>>> ADDRESS;rport=5060;branch=z9hG4bKPj67fb6d86-97d7-4231-995b-e54b0f62881e
>>>>>>>>>>>>> To: <sip:88290@<KAMAILIO_FQDN>>;tag=hvra7mj3q0
>>>>>>>>>>>>> From:
>>>>>>>>>>>>> <sip:+XXXX7688881@<KAMAILIO_FQDN>>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d
>>>>>>>>>>>>> Call-ID: 46f44741-d155-4dd5-8fd8-78e540fc1acb
>>>>>>>>>>>>> CSeq: 18326 INVITE
>>>>>>>>>>>>> Contact:
>>>>>>>>>>>>> <sip:88290 at toleivu2gdbh.invalid;transport=wss>
>>>>>>>>>>>>> Allow:
>>>>>>>>>>>>> ACK,CANCEL,INVITE,MESSAGE,BYE,OPTIONS,INFO,NOTIFY,REFER
>>>>>>>>>>>>> Supported: outbound
>>>>>>>>>>>>> Content-Type: application/sdp
>>>>>>>>>>>>> Content-Length: 817
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> ACK looks like
>>>>>>>>>>>>>
>>>>>>>>>>>>> ACK
>>>>>>>>>>>>> sip:88290 at toleivu2gdbh.invalid;transport=wss
>>>>>>>>>>>>> SIP/2.0
>>>>>>>>>>>>> Via: SIP/2.0/UDP
>>>>>>>>>>>>> A_IP_ADDRESS:5060;rport;branch=z9hG4bKPj8d05548a-91ef-4332-8617-32f8eeebf8f2
>>>>>>>>>>>>> From:
>>>>>>>>>>>>> <sip:88881 at A_IP_ADDRESS>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d
>>>>>>>>>>>>> To: <sip:88290 at KAMAILIO_FQDN>;tag=hvra7mj3q0
>>>>>>>>>>>>> Call-ID: 46f44741-d155-4dd5-8fd8-78e540fc1acb
>>>>>>>>>>>>> CSeq: 18326 ACK
>>>>>>>>>>>>> Route:
>>>>>>>>>>>>> <sip:FQDN;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>>>>>> Route:
>>>>>>>>>>>>> <sip:FQDN:8089;transport=ws;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss>
>>>>>>>>>>>>> Max-Forwards: 70
>>>>>>>>>>>>> User-Agent: Asterisk PBX 13.33.0
>>>>>>>>>>>>> Content-Length: 0
>>>>>>>>>>>>>
>>>>>>>>>>>>> And Kamailio on *loose_route()* loops ACK
>>>>>>>>>>>>> to itself. (with result of function == 1)
>>>>>>>>>>>>>
>>>>>>>>>>>>> In a case if in Record-Route/Route headers
>>>>>>>>>>>>> just IP address of Kamailio present, all
>>>>>>>>>>>>> works as expected, but it's not really
>>>>>>>>>>>>> behavior I want to achieve.
>>>>>>>>>>>>>
>>>>>>>>>>>>> I've tried to play with
>>>>>>>>>>>>> *record_route_preset("...")* specifying
>>>>>>>>>>>>> only WSS part (as suggested in
>>>>>>>>>>>>> https://skalatan.de/de/blog/kamailio-sbc-teams
>>>>>>>>>>>>> <https://skalatan.de/de/blog/kamailio-sbc-teams>)
>>>>>>>>>>>>> with FQDN, but no luck.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Also wanted to try approach using
>>>>>>>>>>>>> record_route_preset() function in branch
>>>>>>>>>>>>> route, but it was working only with first
>>>>>>>>>>>>> branch, not affecting others (but I assume
>>>>>>>>>>>>> having different RR headers across
>>>>>>>>>>>>> branches is not a good idea)
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Regards,
>>>>>>>>>>>>> Igor
>>>>>>>>>>>>>
>>>>>>>>>>>>> __________________________________________________________
>>>>>>>>>>>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>>>>>>>>>>>> * sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>>>>>>>>>>>>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>>>>>>>>>>>>> Edit mailing list options or unsubscribe:
>>>>>>>>>>>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>>>>>>>>>> --
>>>>>>>>>>>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
>>>>>>>>>>>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>>>>>>>>>>>> Kamailio Advanced Training - Online
>>>>>>>>>>>> May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
>>>>>>>>>>>> * https://www.asipto.com/sw/kamailio-advanced-training-online/ <https://www.asipto.com/sw/kamailio-advanced-training-online/>
>>>>>>>>>>>
>>>>>>>>>>> __________________________________________________________
>>>>>>>>>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>>>>>>>>>> * sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>>>>>>>>>>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>>>>>>>>>>> Edit mailing list options or unsubscribe:
>>>>>>>>>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>>>>>>>> --
>>>>>>>>>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
>>>>>>>>>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>>>>>>>>>> Kamailio Advanced Training - Online
>>>>>>>>>> May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
>>>>>>>>>> * https://www.asipto.com/sw/kamailio-advanced-training-online/ <https://www.asipto.com/sw/kamailio-advanced-training-online/>
>>>>>>>> --
>>>>>>>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
>>>>>>>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>>>>>>>> Kamailio Advanced Training - Online
>>>>>>>> May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
>>>>>>>> * https://www.asipto.com/sw/kamailio-advanced-training-online/ <https://www.asipto.com/sw/kamailio-advanced-training-online/>
>>>>>> --
>>>>>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
>>>>>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>>>>>> Kamailio Advanced Training - Online
>>>>>> May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
>>>>>> * https://www.asipto.com/sw/kamailio-advanced-training-online/ <https://www.asipto.com/sw/kamailio-advanced-training-online/>
>>>>> __________________________________________________________
>>>>> Kamailio - Users Mailing List - Non Commercial
>>>>> Discussions
>>>>> * sr-users at lists.kamailio.org
>>>>> <mailto:sr-users at lists.kamailio.org>
>>>>> Important: keep the mailing list in the
>>>>> recipients, do not reply only to the sender!
>>>>> Edit mailing list options or unsubscribe:
>>>>> *
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>>>
>>>>> --
>>>>> Regards,
>>>>>
>>>>> David Villasmil
>>>>> email: david.villasmil.work at gmail.com
>>>>> <mailto:david.villasmil.work at gmail.com>
>>>>> phone: +34669448337
>>>>>
>>>>> __________________________________________________________
>>>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>>>> * sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>>>>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>>>>> Edit mailing list options or unsubscribe:
>>>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>> __________________________________________________________
>>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>>> * sr-users at lists.kamailio.org
>>>> <mailto:sr-users at lists.kamailio.org>
>>>> Important: keep the mailing list in the recipients, do
>>>> not reply only to the sender!
>>>> Edit mailing list options or unsubscribe:
>>>> *
>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>>
>>>>
>>>> __________________________________________________________
>>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>>> * sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>>>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>>>> Edit mailing list options or unsubscribe:
>>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>> __________________________________________________________
>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>> * sr-users at lists.kamailio.org
>>> <mailto:sr-users at lists.kamailio.org>
>>> Important: keep the mailing list in the recipients, do not
>>> reply only to the sender!
>>> Edit mailing list options or unsubscribe:
>>> *
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>
>>> --
>>> Regards,
>>>
>>> David Villasmil
>>> email: david.villasmil.work at gmail.com
>>> <mailto:david.villasmil.work at gmail.com>
>>> phone: +34669448337
>>> __________________________________________________________
>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>> * sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>>> Important: keep the mailing list in the recipients, do not reply
>>> only to the sender!
>>> Edit mailing list options or unsubscribe:
>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>> <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>>
>>>
>>> __________________________________________________________
>>> Kamailio - Users Mailing List - Non Commercial Discussions
>>> * sr-users at lists.kamailio.org
>>> Important: keep the mailing list in the recipients, do not reply only to the sender!
>>> Edit mailing list options or unsubscribe:
>>> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
> * sr-users at lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to the sender!
> Edit mailing list options or unsubscribe:
> * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - Online
May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
* https://www.asipto.com/sw/kamailio-advanced-training-online/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20210514/2d6bfb73/attachment.htm>
More information about the sr-users
mailing list