2011/12/2 Daniel-Constantin Mierla <miconda@gmail.com>

Hello,

On 12/2/11 12:48 PM, Bruno Bresciani wrote:
Hello

Is attached the diagram showing the call flow... I have a cell phone with Android and Bria softphone registered on kamailio via TLS protocol. When I make a call by Bria, this INVITE is routed of the kamailio to gateway SIP via UDP protocolo because Bria specified transport=TLS only contact header and nothing in R-URI.
I want all way the call is forwarded with TLS protocol.

do you want to force TLS between Kamailio and gateway only if calls comes via TLS? Or always (e.g., call comes over UDP to Kamailio and has to go via TLS to gateway)?

If you want to enforce always tls, then just set $du before relaying to gateway:

$du = "sip:gatewayip;transport=tls";

There are also functions from tm where you can force tls transport (see the readme of tm module).

If you want to send over tls only when it comes via TLS, then do the checking

if(proto==TLS) {
# came over tls, enforce tls for outgoing to gateway
$du = "sip:gatewayip;transport=tls";
}

Cheers,
Daniel
Cheers
2011/12/1 Daniel-Constantin Mierla <miconda@gmail.com>
Hello,

On 11/30/11 11:59 AM, Bruno Bresciani wrote:
Now I understood why the messagem is forward with UDP protocol... This problem occurs with bria on android plataform, this softphone send the INVITE request with tls protocol specified only on the contact header.

Contact: "XXX" <sip:XXX@YYY.YYY.YYY.YYY:YYY;transport=TLS>.

as Daniel pointed out, "The contact header address is not used for routing SIP requests, only Route headers and R-URI addresses"

In this case, I should add the transport protocol TLS on R-URI before to forward message with t_relay function... Correct?

it is not clear for me why you need to forward on TLS if the destination address is not requiring that. Maybe you can draw a diagram showing the call flow, who is on TLS and how is happening at this moment and what you would like to happen.

Cheers,
Daniel
Cheers
2011/11/29 Daniel-Constantin Mierla <miconda@gmail.com>
On 11/29/11 6:24 PM, Bruno Bresciani wrote:
Thank's for attention Andrew

I'm reading the source code of tm module to try understand better this behavior...
I can't understand what meaning that "the outbound proxy address is set"... where I define this address?

Outbound proxy address is stored in an internal structure, it is not part of a SIP request. It represents the address where to send the request, regardless of request URI (r-uri) address. One common use case is when dealing with NAT routers, the r-uri is set to the contact address of the destination phone and the outbound proxy address is set to the NAT router.

From configuration file, you can access it via $du (read and write via assignment operation). There are couple of modules that may set the outbound proxy address, like registrar/usrloc, rr, lcr...

Maybe the best is to post here an ngrep with the SIP trace of such case, that we can see if something is wrong.

Cheers,
Daniel
2011/11/29 Andrew Pogrebennyk <apogrebennyk@sipwise.com>

Bruno,
the address from contact header is put into R-URI on outgoing request to
that user. This is where I catch that parameter. I think we should debug
why kamailio sends the request using UDP, it is not clear, as Daniel
pointed out it should work automatically. I think I had to do these
manipulations because in my case the outbound proxy address is set

On 11/29/2011 05:38 PM, Bruno Bresciani wrote:
> In my case the transport=TLS is present in contact header, has the same
> treatment of R-URI?
>
> Cheers

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-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda