Re: [SR-Users] Problem implementing Outbound Proxy

hi karsten,

yeah thats what i thought but i'm a bit without a clue here how to achieve this. any hints?

Best regards Christoph

Am 26.11.21 um 09:52 schrieb Karsten Horsmann:

Hi Christoph,

so you have an trusted connection "SIPTRUNK" to kamailio (and then dispatcher to application/freeswitch B2BUA). I would create an now an vice-versa flow in your kamailio like this: FreeSWITCH (bridge/internal/kamailio-ip) to kamailio to SIPTRUNK.

Kind regards Karsten

Am Fr., 26. Nov. 2021 um 09:01 Uhr schrieb Christoph Russow <russow@emtex.de mailto:russow@emtex.de>:

Hi all,

can no one help here? do you need more informations?

Best regards
Christoph

Am 23.11.21 um 15:26 schrieb Christoph Russow:
 > Hi all,
 >
 > im currently trying to add a Outbound Proxying to our system
which right
 > now does inbound loadbalancing for our application servers.
 >
 > Current:
 > Inbound SIP Trunk -> Kamailio -> dispatcher -> ApplicationServer 1..n
 >
 > i now want to add the ability for our internal Application
Servers to
 > terminate their outbound calls through the kamailio system.
 >
 > currently i've setup a gateway in the (freeswitch) application
server
 > that has the kamailio system set as outbound-proxy. this leads to
sip
 > calls started with
 >
 > originate sofia/gateway/kamailio/<number>@<outbound carrier IP>
 >
 > to be sent to the kamailio system which then forwards it to the
given
 > carrier IP. Sadly our main carrier answers with "503 service
unavailable
 > - no bandwith available". (maybe due to the internal ip-addresses
within
 > some of the headers?)
 >
 > i've attached our current kamailio configuration and also a pcap
of a
 > call i tried to start with our main carrier.
 >
 > i tried this way as it seemed to be the easiest way so our
application
 > servers still can select the outbound carrier within their flow.
 >
 > maybe i'm on the wrong way here and need to solve this problem in a
 > completely different way i don't know.
 >
 > TLDR: sip proxying does not work as expected. need a way to achieve
 > outbound calls routed through kamailio from internal application
servers
 >
 > any hint/help into the right direction is appreciated
 >
 > Best Regards
 > Christoph Russow
 >
 >
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-- 
________________________________________________________________

EMTEX GmbH
Christoph Russow
Software Engineer

Bischof-Otto-Weg 9
D-91086 Aurachtal
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Tel. +49 9132 7490 0      Sitz der Gesellschaft: 91086 Aurachtal
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________________________________________________________________

__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
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Important: keep the mailing list in the recipients, do not reply
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-- Mit freundlichen Grüßen *Karsten Horsmann*

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