[SR-Users] dispatch REGISTER over TLS

David Villasmil david.villasmil.work at gmail.com
Sun Nov 10 01:34:25 CET 2019


You need to have a TLS listen like

https://kamailio.org/docs/tls-1.3.x.html#AEN192


On Sun, 10 Nov 2019 at 00:32, David Villasmil <
david.villasmil.work at gmail.com> wrote:

> From what you paste, 8080 is not TLS
>
> On Sat, 9 Nov 2019 at 23:29, sthustfo <sthustfo at gmail.com> wrote:
>
>> Kamailio listening on WS only as seen from below log snippet. As I
>> mentioned earlier, talks pure WS (no WSS) with the clients, and TLS towards
>> the SIP server.
>>
>>  0(3268) INFO: <core> [core/sctp_core.c:74]: sctp_core_check_support():
>> SCTP API not enabled - if you want to use it, load sctp module
>> Listening on
>>              tcp: 10.0.0.14 [10.0.0.14]:8080
>> Aliases:
>>              *: test.example.com:*
>>
>> And here is the relevant portion from config file.
>> listen=tcp:10.0.0.14:8080
>>
>> With the above, I modified dispatcher.list as below
>> # setid(integer) destination(sip uri) flags (integer, optional),
>> priority(int,opt), attrs (str,optional)
>> 1007 sip:10.0.0.100:5061;transport=tls 0 3 socket=tcp:10.0.0.14:8080
>> ;ping_from=sip:10.0.0.14
>>
>> With the above change, I see following in the logs
>>
>>  1(3271) WARNING: <core> [core/forward.c:228]: get_send_socket2():
>> protocol/port mismatch (forced tcp:10.0.0.14:8080, to tls:10.0.0.100:5061
>> )
>>  1(3271) ERROR: tm [ut.h:315]: uri2dst2(): no corresponding socket found
>> for "10.0.0.100" af 2 (tls:10.0.0.100:5061)
>>  1(3271) ERROR: tm [uac.c:449]: t_uac_prepare(): no socket found
>>  1(3271) ERROR: dispatcher [dispatch.c:3107]: ds_ping_set(): unable to
>> ping [sip:10.0.0.100:5061;transport=tls]
>>  1(3271) WARNING: <core> [core/forward.c:228]: get_send_socket2():
>> protocol/port mismatch (forced tcp:10.0.0.14:8080, to tls:10.0.0.100:5061
>> )
>>
>> But not attempts to connect to the SIP server.
>>
>> On Sat, Nov 9, 2019 at 11:48 PM David Villasmil <
>> david.villasmil.work at gmail.com> wrote:
>>
>>> Please paste the “listen” parameters from the config.
>>>
>>> On Sat, 9 Nov 2019 at 18:04, David Villasmil <
>>> david.villasmil.work at gmail.com> wrote:
>>>
>>>> Is kamailio listening in that socket?
>>>>
>>>> On Sat, 9 Nov 2019 at 17:34, sthustfo <sthustfo at gmail.com> wrote:
>>>>
>>>>> Thanks Karsten. Instead of SIP server, I ran a simple socket listener
>>>>> program to see if dispatcher is attempting to connect to it or not. But it
>>>>> did not receive any client connection attempts. So after looking at the
>>>>> logs, I found below log statements. Any idea why this might have happened?
>>>>>
>>>>>  0(3004) ERROR: dispatcher [dispatch.c:411]: pack_dest(): non-local
>>>>> socket <tls:10.0.0.14:5061>
>>>>>  0(3004) WARNING: dispatcher [dispatch.c:816]: ds_load_list(): unable
>>>>> to add destination sip:10.0.0.100:5061;transport=tls to set 1007 --
>>>>> skipping
>>>>>
>>>>> dispatcher.list file pasted below contains the address. Why would this
>>>>> be an error?
>>>>>
>>>>> # setid(integer) destination(sip uri) flags (integer, optional),
>>>>> priority(int,opt), attrs (str,optional)
>>>>> 1007 sip:10.0.0.100:5061;transport=tls 0 3 socket=tls:10.0.0.14:5061;
>>>>> ping_from=sip:10.0.0.14
>>>>>
>>>>>
>>>>> On Sat, Nov 9, 2019 at 9:35 PM Karsten Horsmann <khorsmann at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I guess the dispatcher is not able to get an 200 okay from your
>>>>>> upstream tls / sipserver. And so the dispatcher did his job. Find no active
>>>>>> dispatcher targets, then told you that.
>>>>>>
>>>>>> You find more about the dispatcher state with kamctl dispatcher dump
>>>>>> or kamcmd dispatcher.list
>>>>>>
>>>>>> And read the module docu of dispatcher, they explain you the states
>>>>>> of the commands above.
>>>>>>
>>>>>> Hints here:
>>>>>>
>>>>>> Reading dispatcher docu, understand the states, read tls (maybe
>>>>>> that's your root cause).
>>>>>>
>>>>>>
>>>>>> Cheers
>>>>>> Karsten
>>>>>>
>>>>>> sthustfo <sthustfo at gmail.com> schrieb am Sa., 9. Nov. 2019, 14:56:
>>>>>>
>>>>>>> Thanks David. You are right, ds_select_dst() is failing and error
>>>>>>> log is shown.
>>>>>>>
>>>>>>>  9(2528) ERROR: {1 9733 REGISTER e4rvba563tlnj0i3a906qa} dispatcher
>>>>>>> [dispatch.c:2032]: ds_manage_routes(): no destination sets
>>>>>>>  9(2528) exec: {1 9733 REGISTER e4rvba563tlnj0i3a906qa} ***
>>>>>>> cfgtrace:request_route=[DISPATCH] c=[/etc/kamailio/kamailio.cfg] l=970 a=25
>>>>>>> n=xdbg
>>>>>>>  9(2528) DEBUG: {1 9733 REGISTER e4rvba563tlnj0i3a906qa} <script>:
>>>>>>> --- DISPATCH: Dispatcher could not find any destination
>>>>>>>  9(2528) exec: {1 9733 REGISTER e4rvba563tlnj0i3a906qa} ***
>>>>>>> cfgtrace:request_route=[DISPATCH] c=[/etc/kamailio/kamailio.cfg] l=971 a=26
>>>>>>> n=send_reply
>>>>>>>
>>>>>>> Here is the config around ds_select_dst()
>>>>>>>
>>>>>>> # Dispatch requests
>>>>>>> route[DISPATCH] {
>>>>>>>         # round robin dispatching on gateways group '1'
>>>>>>>         if(!ds_select_dst("1007", "4")) {
>>>>>>>                 xdbg("--- DISPATCH: Dispatcher could not find any
>>>>>>> destination\n");
>>>>>>>                 send_reply("404", "No destination");
>>>>>>>                 exit;
>>>>>>>         }
>>>>>>>         t_on_failure("RTF_DISPATCH");
>>>>>>>         route(RELAY);
>>>>>>>         exit;
>>>>>>> }
>>>>>>>
>>>>>>> Is there any way to see the logs for communication that happens with
>>>>>>> the destination? As you said, that also could be one of points of failure.
>>>>>>>
>>>>>>> BTW, I have set following config for pinging destination.
>>>>>>>
>>>>>>> modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.list")
>>>>>>> #modparam("dispatcher", "db_url", DBURL)                        #Use
>>>>>>> DBURL variable for database parameters
>>>>>>> modparam("dispatcher", "ds_ping_interval", 10)          #How often
>>>>>>> to ping destinations to check status
>>>>>>> modparam("dispatcher", "ds_ping_method", "OPTIONS")     #Send SIP
>>>>>>> Options ping
>>>>>>> modparam("dispatcher", "ds_probing_threshold", 10)      #How many
>>>>>>> failed pings in a row do we need before we consider it down
>>>>>>> modparam("dispatcher", "ds_inactive_threshold", 10)     #How many
>>>>>>> sucessful pings in a row do we need before considering it up
>>>>>>> modparam("dispatcher", "ds_ping_latency_stats", 1)      #Enables
>>>>>>> stats on latency
>>>>>>> modparam("dispatcher", "ds_probing_mode", 1)            #Keeps
>>>>>>> pinging gateways when state is known (to detect change in state)
>>>>>>>
>>>>>>> Best Regards.
>>>>>>>
>>>>>>> On Sat, Nov 9, 2019 at 6:32 PM David Villasmil <
>>>>>>> david.villasmil.work at gmail.com> wrote:
>>>>>>>
>>>>>>>> Please post the config around the ds_select
>>>>>>>>
>>>>>>>> What that’s saying is basically it could not find a destination for
>>>>>>>> the set you are asking for.
>>>>>>>>
>>>>>>>> Either because the setid you provide with the function doesn’t
>>>>>>>> exist, or the destination is not responding to the pings.
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sat, 9 Nov 2019 at 10:33, sthustfo <sthustfo at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Thanks Karsten. The setup consists of client connecting to
>>>>>>>>> kamailio over WS (10.0.0.14). Kamailio needs to proxy the requests to SIP
>>>>>>>>> server (10.0.0.100) over TLS. As per your suggestion, I modified the
>>>>>>>>> dispatch list as below
>>>>>>>>>
>>>>>>>>> # setid(integer) destination(sip uri) flags (integer, optional),
>>>>>>>>> priority(int,opt), attrs (str,optional)
>>>>>>>>> 1007 sip:10.0.0.100:5061;transport=tls 0 3
>>>>>>>>> socket=tls:10.0.0.14:5061;ping_from=sip:10.0.0.14
>>>>>>>>>
>>>>>>>>> With above, kamailio replies to REGISTER with "SIP/2.0 404 No
>>>>>>>>> destination". And in the logs, I see following statement.
>>>>>>>>>
>>>>>>>>> 1(2281) DEBUG: dispatcher [dispatch.c:3125]: ds_check_timer(): no
>>>>>>>>> destination sets
>>>>>>>>>
>>>>>>>>> What does this mean? Is kamailio not able to talk to SIP server
>>>>>>>>> for some reason?
>>>>>>>>>
>>>>>>>>> Regards
>>>>>>>>>
>>>>>>>>> On Fri, Nov 8, 2019 at 11:55 PM Karsten Horsmann <
>>>>>>>>> khorsmann at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Your config line for the dispatcher makes no sense for me.
>>>>>>>>>>
>>>>>>>>>> 1007 sip:10.0.0.100:5061;transport=tls 0 3 socket=tls:
>>>>>>>>>> 10.0.0.100:5061;ping_from=sip:10.0.0.14
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Means setid 1007 (like an group to arrange multiple targets)
>>>>>>>>>> okay.
>>>>>>>>>> But sip:10.0.0.100:5061;transport=tls is the dispatcher target
>>>>>>>>>> Uri. Where your calls are placed when you call the dispatcher function with
>>>>>>>>>> setid 1007.
>>>>>>>>>>
>>>>>>>>>> In combination with socket=10.0.0.100:5061 (that indicates your
>>>>>>>>>> Kamailio socket, the proxy ip)
>>>>>>>>>> That you talking with yourself.
>>>>>>>>>>
>>>>>>>>>> You should read the module documentations for dispatcher and tls.
>>>>>>>>>>
>>>>>>>>>> Or describe your ip setup and your config a bit more.
>>>>>>>>>>
>>>>>>>>>> Cheers
>>>>>>>>>> Karsten
>>>>>>>>>>
>>>>>>>>>> sthustfo <sthustfo at gmail.com> schrieb am Fr., 8. Nov. 2019,
>>>>>>>>>> 17:41:
>>>>>>>>>>
>>>>>>>>>>> Hi Karsten, David,
>>>>>>>>>>>
>>>>>>>>>>> Thanks for your pointers. Earlier I was using mysql backend
>>>>>>>>>>> where the dispatch list was stored. Now following your suggestions, I have
>>>>>>>>>>> switched to dispatcher list in a file (/etc/kamailio/dispatcher.list) and
>>>>>>>>>>> put in the following
>>>>>>>>>>>
>>>>>>>>>>> # setid(integer) destination(sip uri) flags (integer, optional),
>>>>>>>>>>> priority(int,opt), attrs (str,optional)
>>>>>>>>>>> 1007 sip:10.0.0.100:5061;transport=tls 0 3
>>>>>>>>>>> socket=tls:10.0.0.100:5061;ping_from=sip:10.0.0.14
>>>>>>>>>>>
>>>>>>>>>>> Even with this, when HTTP request in, the same is upgraded to WS
>>>>>>>>>>> connection. But this gets closed after couple of seconds. Does the below
>>>>>>>>>>> log indicate anything?
>>>>>>>>>>>
>>>>>>>>>>> 9(1784) exec: *** cfgtrace:request_route=[xhttp:request]
>>>>>>>>>>> c=[/etc/kamailio/kamailio.cfg] l=1112 a=2 n=exit
>>>>>>>>>>>  9(1784) DEBUG: <core> [core/usr_avp.c:636]: destroy_avp_list():
>>>>>>>>>>> destroying list (nil)
>>>>>>>>>>>
>>>>>>>>>>> Is there any way to understand what's happening? I do not see
>>>>>>>>>>> any other error lin logs.
>>>>>>>>>>>
>>>>>>>>>>> Thanks.
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Thu, Nov 7, 2019 at 2:34 PM Daniel-Constantin Mierla <
>>>>>>>>>>> miconda at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Hello,
>>>>>>>>>>>> On 06.11.19 20:46, Karsten Horsmann wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> Hi,
>>>>>>>>>>>>
>>>>>>>>>>>> the sips Uri schemata is not used for tls with dispatcher.
>>>>>>>>>>>>
>>>>>>>>>>>> jumping in to clarify a bit about sips protocol schema. It
>>>>>>>>>>>> doesn't imply TLS as one may think HTTPS does it for HTTP. The sips is
>>>>>>>>>>>> mandating that the traffic goes over secure links, which can be IPSec/VPN
>>>>>>>>>>>> or even just private network, so it is ok using UDP or TCP when sips is
>>>>>>>>>>>> present.
>>>>>>>>>>>>
>>>>>>>>>>>> In SIP, if TLS is wanted, then transport=tls has to be added to
>>>>>>>>>>>> the URI.
>>>>>>>>>>>>
>>>>>>>>>>>> As for dispatcher, one more clarification: trasport=tls in
>>>>>>>>>>>> attrs has nothing to do with the destination address, so that has to be in
>>>>>>>>>>>> the value of the destination field, as Karsten gave in his example.
>>>>>>>>>>>>
>>>>>>>>>>>> And, as general note: better do not use sips at all, it can
>>>>>>>>>>>> mess up some nodes in the path, if you are not sure about the need of sips
>>>>>>>>>>>> -- just do uri;trasport=tls.
>>>>>>>>>>>>
>>>>>>>>>>>> Cheers,
>>>>>>>>>>>> Daniel
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Here an example for flatfile dispatcher.list (need corrected
>>>>>>>>>>>> values).
>>>>>>>>>>>>
>>>>>>>>>>>> The socket line must match an listen directive in your
>>>>>>>>>>>> Kamailio.cfg.
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> root at sbc1:~# cat /etc/kamailio/dispatcher.list
>>>>>>>>>>>> # setid(integer) destination(sip uri) flags (integer,
>>>>>>>>>>>> optional), priority(int,opt), attrs (str,optional)
>>>>>>>>>>>> 1007 sip:sip.pstnhub.microsoft.com;transport=tls 0 3
>>>>>>>>>>>> socket=tls:212.xx.xx.xx:5061;ping_from=sip:sbc-d01.yourdomain
>>>>>>>>>>>>
>>>>>>>>>>>> Cheers
>>>>>>>>>>>> Karsten
>>>>>>>>>>>>
>>>>>>>>>>>> sthustfo <sthustfo at gmail.com> schrieb am Mi., 6. Nov. 2019,
>>>>>>>>>>>> 20:32:
>>>>>>>>>>>>
>>>>>>>>>>>>> I have a basic setup where kamailio receives SIP over
>>>>>>>>>>>>> websocket (no WSS) and forwards to SIP server over TLS. I have enabled TLS
>>>>>>>>>>>>> in kamailio.cfg and added dispatcher node as sips:SIP_SERVER:5061 and
>>>>>>>>>>>>> transport=tls.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> +----+-------+------------------------+-------+----------+---------------+----------------+
>>>>>>>>>>>>> | id | setid | destination            | flags | priority |
>>>>>>>>>>>>> attrs         | description    |
>>>>>>>>>>>>>
>>>>>>>>>>>>> +----+-------+------------------------+-------+----------+---------------+----------------+
>>>>>>>>>>>>> |  4 |     1 | sips:10.0.0.100:5061 |     0 |        0 |
>>>>>>>>>>>>> transport=tls | SIP SERVER |
>>>>>>>>>>>>>
>>>>>>>>>>>>> +----+-------+------------------------+-------+----------+---------------+----------------+
>>>>>>>>>>>>>
>>>>>>>>>>>>> Now when REGISTER is received over websocket, kamailio is
>>>>>>>>>>>>> responding with error code 500 and phrase "500 I'm terribly sorry, server
>>>>>>>>>>>>> error occurred (7/SL)". And on the console I see the following error
>>>>>>>>>>>>> messages.
>>>>>>>>>>>>>
>>>>>>>>>>>>> 12(33858) DEBUG: {1 2521 REGISTER o9q7ujqgin33qgp00abijv}
>>>>>>>>>>>>> <core> [core/md5utils.c:67]: MD5StringArray(): MD5 calculated:
>>>>>>>>>>>>> f1ecf7bcb659b07fe81e332e100044e5
>>>>>>>>>>>>> 12(33858) ERROR: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} tm
>>>>>>>>>>>>> [ut.h:315]: uri2dst2(): no corresponding socket found for "10.0.0.100" af 2
>>>>>>>>>>>>> (tls:10.0.0.100:5061)
>>>>>>>>>>>>> 12(33858) ERROR: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} tm
>>>>>>>>>>>>> [t_fwd.c:467]: prepare_new_uac(): can't fwd to af 2, proto 3  (no
>>>>>>>>>>>>> corresponding listening socket)
>>>>>>>>>>>>> 12(33858) ERROR: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} tm
>>>>>>>>>>>>> [t_fwd.c:1735]: t_forward_nonack(): failure to add branches
>>>>>>>>>>>>> 12(33858) DEBUG: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} tm
>>>>>>>>>>>>> [t_funcs.c:334]: t_relay_to(): t_forward_nonack returned error -7 (-7)
>>>>>>>>>>>>> 12(33858) DEBUG: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} tm
>>>>>>>>>>>>> [t_funcs.c:352]: t_relay_to(): -7 error reply generation delayed
>>>>>>>>>>>>> 12(33858) exec: {1 2521 REGISTER o9q7ujqgin33qgp00abijv} ***
>>>>>>>>>>>>> cfgtrace:request_route=[RELAY] c=[/etc/kamailio/kamailio.cfg] l=587 a=24
>>>>>>>>>>>>> n=sl_reply_error
>>>>>>>>>>>>> 12(33858) DEBUG: {1 2521 REGISTER o9q7ujqgin33qgp00abijv}
>>>>>>>>>>>>> <core> [core/msg_translator.c:162]: check_via_address(): (10.0.0.14,
>>>>>>>>>>>>> hsvmphm3ps12.invalid, 0)
>>>>>>>>>>>>> 12(33858) DEBUG: {1 2521 REGISTER o9q7ujqgin33qgp00abijv}
>>>>>>>>>>>>> websocket [ws_conn.c:452]: wsconn_get(): wsconn_get for id [3]
>>>>>>>>>>>>>
>>>>>>>>>>>>> *tls.cfg contents*
>>>>>>>>>>>>> [client:default]
>>>>>>>>>>>>> method = TLSv1
>>>>>>>>>>>>> verify_certificate = yes
>>>>>>>>>>>>> require_certificate = yes
>>>>>>>>>>>>> private_key = /home/test/kamailio/internal.key
>>>>>>>>>>>>> certificate = /home/test/kamailio/internal.crt
>>>>>>>>>>>>> ca_list = /home/test/kamailio/ca_list.pem
>>>>>>>>>>>>>
>>>>>>>>>>>>> Any reason why this error is seen? Any inputs appreciated.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
>>>>>>>>>>>> Kamailio World Conference - April 27-29, 2020, in Berlin -- www.kamailioworld.com
>>>>>>>>>>>>
>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>>
>>>>>>>> --
>>>>>>>> Regards,
>>>>>>>>
>>>>>>>> David Villasmil
>>>>>>>> email: david.villasmil.work at gmail.com
>>>>>>>> phone: +34669448337
>>>>>>>> _______________________________________________
>>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>>> sr-users at lists.kamailio.org
>>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Kamailio (SER) - Users Mailing List
>>>>>>> sr-users at lists.kamailio.org
>>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>>
>>>>>> _______________________________________________
>>>>>> Kamailio (SER) - Users Mailing List
>>>>>> sr-users at lists.kamailio.org
>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>> --
>>>> Regards,
>>>>
>>>> David Villasmil
>>>> email: david.villasmil.work at gmail.com
>>>> phone: +34669448337
>>>>
>>> --
>>> Regards,
>>>
>>> David Villasmil
>>> email: david.villasmil.work at gmail.com
>>> phone: +34669448337
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
> --
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
>
-- 
Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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