[SR-Users] Dialog using Recod Route, with an asterisk

[Nicki Otte]

Thanks for the reply!

Sad but what I expected.
I’ll find another way around my situation then.

// Nicki Bo Otte

From: Daniel-Constantin Mierla <miconda at gmail.com>
Date: Friday, 12 March 2021 at 18.37
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>, Nicki Otte <Duckay at live.com>
Subject: Re: [SR-Users] Dialog using Recod Route, with an asterisk

Hello,

Asterisk is a b2bua and it is normal to create a completely new and different call. It is not only the missing of the record-route, but different call-id, from-tag, etc ... Also, Asterisk can create many outbound calls out of one incoming, for example in case of group hunting.

If you want to track a single dialog in such case, you have to track only incoming one to asterisk, or the outgoing one.

Cheers,
Daniel
On 12.03.21 10:30, Nicki Otte wrote:
Hi everyone

I have a question regarding the dialog module.

It uses the RecordRoute header, which seems all fine.


The situation:
I have a setup, where the Kamailio proxy, which is running with the dialog module, is talking to an Asterisk.
Now the logic in the Asterisk, is to place a new call, and return in to the Kamailio proxy, which sends it to the PSTN.

By the logic of the asterisk, it doesn’t persist with the RecordRoute headers. It starts from scratch with a new callId.
Here lies the problem. Because the RecordRoute header isn’t given, then a new “dialog” is made, instead of using the one that is established.

Here comes my question.
Is it against the standards to make the Asterisk persist with these headers, or am I looking at the wrong solution?
If not,  I do see the power of the dialog module, when a call bounces between UAS’, but not when an asterisk is in the setup.
Another solution could be to use a custom x- header for the dialog id, but it doesn’t look like that is a possibility.

Have any of you run into this situation, and might have a solution?

Thanks in advance
// Nicki Bo Otte



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