Fred,
This is beautiful:
<extension name="b2bua">
<condition field="destination_number" expression="^b2bua-(.+)$">
<action application="log" data="INFO entered b2bua extension"/>
<action application="set" data=“sendto=${sip_via_host}:5080"/>
<action application="set" data="bypass_media=true"/>
<action application="set" data="sip_copy_custom_headers=false"/>
<action application="bridge"
data="[sip_h_X-PGPX=${uuid}]sofia/internal/$1@${sendto}"/>
<action application="hangup"/>
</condition>
I was not aware it was that simple. Thank you for the education!
-- Alex
> On May 30, 2024, at 6:24 PM, Fred Posner via sr-users
> <[email protected]> wrote:
>
>
>> On May 30, 2024, at 5:49 PM, Alex Balashov via sr-users
>> <[email protected]> wrote:
>>
>> Benoit,
>>
>>> Snip
>>
>> - For those calls, you could deploy a lightweight, signalling-only B2BUA to
>> solve these "looping" problems. SEMS has historically been recommended for
>> this purpose often, but the community edition has fallen into a bit of
>> disrepair. FreeSWITCH, Asterisk, Drachtio, and others make good alternatives.
>>
>> Adding a B2BUA to your platform is also a moving part and introduces
>> complexity. However, the call flow is extremely straightforward, the
>> software componentry involved is very straightforward, and forwarding
>> requests is a core competency of Kamailio that is very idiomatic. Compared
>> to your solution of manipulating the Call-ID in baroque ways, it's much less
>> internally complex, and runs in more well-worn grooves that will be more
>> easily understood by other Kamailio operators and SIP experts in the future.
>>
>> -- Alex
>
> FreeSWITCH is pretty straight forward to do as a signaling only B2BUA for
> Kamailio. I did a presentation on it a cluecon last year with examples:
>
> https://pgpx.io/cc2023/
>
>
> https://github.com/fredposner/cluecon2023
>
>
>
> -- Fred Posner
> Phone: +1 (352) 664-3733
> https://fred.tel
> (Sent from mobile. Please excuse typos/autocorrect)
>
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--
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800
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