Thanks Bogdan!
However, I am talking about serial forking, call forwarding busy/no answer
scenario.
Is there a way to avoid that in the cfg without messing up with the to tags?
How do I achieve “proxy to only a single address ("no-fork")”?
According to fork-directive in
https://www.rfc-editor.org/rfc/rfc3841#section-9.1.
Cheers,
Bela
From: Bogdan-Andrei Iancu<mailto:[email protected]>
Sent: Tuesday, 11 October 2022 01:49
To: OpenSIPS users mailling list<mailto:[email protected]>; Bela
H<mailto:[email protected]>
Subject: Re: [OpenSIPS-Users] Request-Disposition: no-fork
Hi Bela,
What you are trying to do (messing with the TO-tags) is a bad idea, as you will
be breaking the upstream parallel forking.
If the GW does not support forking, what you can do is to avoid doing parallel
forking in your cfg (like when routing to users via lookup). You do not need
any special support.
Best regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Summit 27-30 Sept 2022, Athens
https://www.opensips.org/events/Summit-2022Athens/
On 9/29/22 7:10 AM, Bela H wrote:
Hello,
I have call forwarding busy/no answer scenario: A number is from a gateway, B
and C numbers are our own subs.
The gateway is sending us the INVITE message with “Request-Disposition:
no-fork” header field.
That means we must use one dialog for the mentioned scenario.
Currently the To tag we are sending to the GW in the first 180 ringing/181 Call
is being forwarded messages are different to the To tag in the second 180
ringing and 200 OK (SDP).
Gateway OpenSips
INVITE
------------------------------------------>
100 GIVING IT A TRY
<-- -----------------------------------------
180 RINGING
<- -------------------------------------------
181 CALL IS BEING FORWARDED
<- -------------------------------------------
180 RINGING
<- -------------------------------------------
200 OK (SDP)
<- -------------------------------------------
What would be the easiest way from OpenSIPS to send the same To tag (it should
be the same from the first 180 ringing through to the 200 OK) and using one
dialog for this scenario?
Cheers,
Bela
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