Hello,
the last address from next_gw() becaomes the last r-uri and that is
added as first contact. You will have to shift the URIs. Maybe the
simplest way would be to disable adding r-uri as contact in 3xx via a
mod param in sl module.
Also, if you use 4.3, might worth looking at rtjson module, you can
build a json holding the destination addresses in the order you want and
the push them to r-uri and branches.
Cheers,
Daniel
On 04/06/15 17:00, Ali Taher wrote:
Hi,
I tried to not calling append_branch() when last successful next_gw()
using below code :
$var(z)=0;
$var(a)=0;
if (!load_gws(1, $rU, $fu))
{
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit; }
while(next_gw()) $var(z) = $var(z) +1;
xlog("L_INFO", "number of gateways : $var(z)\n");
load_gws(1, $rU, $fu);
while (next_gw()){
xlog("L_INFO", "gateway is : $ru\n");
$var(a)=$var(a)+1;
if($var(a)!=$var(z))append_branch();
}
In this case I’m getting in contact headers the following gateways : 3,1,2
Regards,
Ali
*From:*Ali Taher [mailto:ataher@vanrise.com]
*Sent:* Thursday, June 04, 2015 5:44 PM
*To:* miconda(a)gmail.com; 'Kamailio (SER) - Users Mailing List'
*Cc:* 'Ali Taher~Vanrise Technical Support'
*Subject:* RE: [SR-Users] Kamailio second contact header
Hi Daniel,
If it is the case then the ordering shouldn’t be 1,2,3,3 ? but I’m
getting 3,1,2,3.
I tried to set $(branch(uri)[-1]) = $null; after the while block , but
nothing changed L
Thanks,
Ali
*From:*Daniel-Constantin Mierla [mailto:miconda@gmail.com]
*Sent:* Thursday, June 04, 2015 5:28 PM
*To:* Ali Taher; 'Kamailio (SER) - Users Mailing List'
*Subject:* Re: [SR-Users] Kamailio second contact header
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@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@192.168.110.181>
<sip:9612@192.168.110.181>;tag=b27e1a1d33761e85846fc98f5f3a7e58.1a8d
From: "test"<sip:test@192.168.110.181>
<sip:test@192.168.110.181>;tag=8571af74
Call-ID: Y2MzOTNiOGRhMTc2NDkwZjIxNzZhYTAzZmM0OGE3NDY
CSeq: 2 INVITE
Contact:
sip:9612@C001,sip:9612@192.168.26.1,sip:9612@192.168.26.6,sip:9612@192.168.26.8
Contact: sip:9612@192.168.26.8
Server: kamailio (4.1.8 (x86_64/linux))
Content-Length: 0
Thanks,
Ali
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--
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://twitter.com/#%21/miconda> -
http://www.linkedin.com/in/miconda
Book: SIP Routing With Kamailio -
http://www.asipto.com