[SR-Users] Kamailio second contact header

[Daniel-Constantin Mierla]

Hello,

next_gw() is also setting the r-uri, so for the last successful
next_gw() you should not call anymore append_branch(). Try to remove the
last branch after the while block:

$(branch(uri)[-1]) = $null;

Cheers,
Daniel

On 04/06/15 16:01, Ali Taher wrote:
>
> Hi Daniel,
>
>  
>
> I’m using this method because I’m having issue with append_branch
> where last gateway is listed first.
>
> For example if gateways are ordered in LCR_rule_target as 1,2,3  , I’m
> having them in contact header as : 3,1,2,3
>
>  
>
> I’m using below code :
>
>  
>
> if (!load_gws(1, $rU, $fu)) {
>
>  
>
>                   sl_send_reply("502", "Unable To lOad GatEwAyS");
>
>  
>
>                   exit;}
>
>  
>
>                   while(next_gw()){
>
>                   append_branch(); }
>
>                   sl_send_reply("302","Moved Temporary");
>
>                   exit;                                    
>
>                 } 
>
>  
>
> Any hint regarding the above would be appreciated.
>
>  
>
> Regards,
>
> Ali
>
>  
>
> *From:*sr-users [mailto:sr-users-bounces at lists.sip-router.org] *On
> Behalf Of *Daniel-Constantin Mierla
> *Sent:* Thursday, June 04, 2015 4:41 PM
> *To:* Kamailio (SER) - Users Mailing List
> *Subject:* Re: [SR-Users] Kamailio second contact header
>
>  
>
> Hello,
>
> the r-uri is added as a Contact address for 3xx replies -- I don't
> remember if this is some RFC requirement or just an implementation of
> the sl function for 3xx replies (well, I haven't implemented those
> function either).
>
> The active branches of the request are added as contact header to the
> reply. So you can practically use append_branch() as many times as you
> need and then do sl_send_reply("3xx", ...). You don't need to append
> headers to replies explicitely.
>
> Cheers,
> Daniel
>
> On 04/06/15 13:59, Ali Taher wrote:
>
>     Hello,
>
>      
>
>     I’m trying to build new contact header that will be sent from
>     Kamailio as below :
>
>      
>
>      
>
>     load_gws(1, $rU, $fu);
>
>     append_to_reply("Contact:");
>
>                                                     while (next_gw())
>
>                                     {
>
>                                                                    
>     append_to_reply("$ru");
>
>                                     }
>
>                                     append_to_reply("\r\n");
>
>                                     sl_send_reply("300","Multiple
>     Choices");
>
>                     exit;  
>
>      
>
>      
>
>     yet I’m getting two Contact headers as shown in below SIP message.
>
>     How can I remove second contact header (highlighted below in gray)
>
>      
>
>     Via: SIP/2.0/UDP
>     192.168.26.3:42528;branch=z9hG4bK-d8754z-4c2cc56c3145b446-1---d8754z-;rport=42528;received=192.168.26.3
>
>     To: “9612"<sip:9612 at 192.168.110.181>
>     <sip:9612 at 192.168.110.181>;tag=b27e1a1d33761e85846fc98f5f3a7e58.1a8d
>
>     From: "test"<sip:test at 192.168.110.181>
>     <sip:test at 192.168.110.181>;tag=8571af74
>
>     Call-ID: Y2MzOTNiOGRhMTc2NDkwZjIxNzZhYTAzZmM0OGE3NDY
>
>     CSeq: 2 INVITE
>
>     Contact:
>     sip:9612 at C001,sip:9612 at 192.168.26.1,sip:9612 at 192.168.26.6,sip:9612 at 192.168.26.8
>
>     Contact: sip:9612 at 192.168.26.8
>
>     Server: kamailio (4.1.8 (x86_64/linux))
>
>     Content-Length: 0
>
>      
>
>      
>
>     Thanks,
>
>     Ali
>
>
>
>
>     _______________________________________________
>
>     SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>
>     sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org>
>
>     http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
>
> -- 
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda
> Book: SIP Routing With Kamailio - http://www.asipto.com

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio - http://www.asipto.com

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