[SR-Users] how to use get my domain name in VIA header (INVITE) instead of IP address.

Henning Westerholt hw at skalatan.de
Mon Apr 27 13:05:25 CEST 2020


Hello,

as mentioned already in discussions of this topic, there is no need to add a domain name in VIA headers. There is all information that is needed to have a basic setup working in the respective post on my blog.

Usually Microsoft will send you a reply if something is not how they expect it to be.

Cheers,

Henning

--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>

From: sr-users <sr-users-bounces at lists.kamailio.org> On Behalf Of Yuriy Nasida
Sent: Monday, April 27, 2020 12:52 PM
To: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org>
Subject: Re: [SR-Users] how to use get my domain name in VIA header (INVITE) instead of IP address.

Guys, I really happy that you send INVITES to MS with record_route_preset and MS does not ignore. But I really not sure how your INVITE looks.
Can you please send one here ? That can help a lot. Also please look at INVITE we send (MS ignores this).


[cid:image001.jpg at 01D61C94.83FEF4F0]



On Sun, 26 Apr 2020 at 18:42, Joel Serrano <joel at textplus.com<mailto:joel at textplus.com>> wrote:
And those, I AFAIR you can set dynamically with record_route_preset() / record_route_advertised_address()

https://kamailio.org/docs/modules/5.3.x/modules/rr.html


On Sun, Apr 26, 2020 at 06:47 Ovidiu Sas <osas at voipembedded.com<mailto:osas at voipembedded.com>> wrote:
There’s no need for FQDNs in Via headers for MS. IPs work just fine!
You need FQDNs only in Route/Record-Route headers.

Regards,
Ovidiu Sas

On Sat, Apr 25, 2020 at 13:08 Yuriy Nasida <ynasida at gmail.com<mailto:ynasida at gmail.com>> wrote:
Comrade :)

Thanks for the advices! I will try them.

And yes, that is for inbound calls to MS teams. We just got outbound calls working by the way (had to do a lot of kamailio tweaks honestly).
As for inbound calls to MS - I just looking at their docs (picute attached). Looks like MS expect domain name in VIA.
I have all other sip headers like they want, but MS still ignore our INVITEs. That is why I think how to change VIA.

If you have example of INVITE to MS teams that is working - that can help a lot.


[cid:image002.png at 01D61C94.83FEF4F0]

On Sat, 25 Apr 2020 at 18:37, Sergiu Pojoga <pojogas at gmail.com<mailto:pojogas at gmail.com>> wrote:
Yuriy,

The 'advertise' parameter doesn't support vars. (https://github.com/kamailio/kamailio/issues/2137)

As an alternative, you could use a combination of xavps and corex module function via_use_xavp_fields() -- see:

https://www.kamailio.org/wiki/cookbooks/5.3.x/core#xavp_via_fields

If you're building this for what I think you are, most likely you think you need this - but you actually don't. Or may be I'm wrong and your specifics do require it.

Good luck comrade.

On Sat, Apr 25, 2020 at 9:41 AM Nasida Yuriy <nasida at live.ru<mailto:nasida at live.ru>> wrote:
Thanks for the answer Sergiu, but this shoud not be static domain name. I need to have different domains in Via for different calls.
Is it possible ?
________________________________
От: sr-users <sr-users-bounces at lists.kamailio.org<mailto:sr-users-bounces at lists.kamailio.org>> от имени Sergiu Pojoga <pojogas at gmail.com<mailto:pojogas at gmail.com>>
Отправлено: 24 апреля 2020 г. 21:35
Кому: Kamailio (SER) - Users Mailing List <sr-users at lists.kamailio.org<mailto:sr-users at lists.kamailio.org>>
Тема: Re: [SR-Users] how to use get my domain name in VIA header (INVITE) instead of IP address.

Most common way is by using `advertise`  in the `listen` directive.

https://www.kamailio.org/wiki/cookbooks/5.3.x/core#listen

On Fri, Apr 24, 2020 at 2:19 PM Nasida Yuriy <nasida at live.ru<mailto:nasida at live.ru>> wrote:

Hi guys,

It sounds simple but I can not get  domain name in VIA header (INVITE) instead of IP address.

It is just

FS ---INVITE --> Kamailio --INVITE--> endpoint

Kamailio gets INVITE, and adds one more VIA with it's IP address. How to get domain name instead ?

Please advice.

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