6 Sep
2012
6 Sep
'12
7:47 p.m.
Hi again,
I really need your help in my testing lab here!!
I have simplified the scenario and changed configs to make it easy pinpoint the redirect
issue and then apply on my real scenario:
Two Phones(username: 106 and 107) registered on Kamailio1 (192.168.111.138).
- Phone 106: dial 107 àOK
- Kamailio routing forward call to Kamailio2(192.168.111.139) àOK
- Then Kamailio should only receive the call from Kamailio1 and redirect it back
to Kamailio1 àNOT OK
Note: In my real scenario Kamailio 2 will be responsible for taking the routing decision
based on its defined LCR rules and redirect the call with rewritten uri to Kamailio1.
Setting in Kamailio2 routing script the following is not working till now:
$ru = "sip:107@192.168.111.138";
send_reply("302", "Redirected");
Km_append_branch(“uri”);
Kamailio2 is not sending the 302 message and this is my problem.
How can I send the 302 message redirect? And where do I have to place or put the related
function in the script?
Thank you.
Kind regards,
F.Chahrour
From: sr-users-bounces(a)lists.sip-router.org [mailto:sr-users-bounces@lists.sip-router.org]
On Behalf Of Fatima Chahrour~Vanrise Support
Sent: Thursday, September 06, 2012 4:40 PM
To: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing
List'; miconda(a)gmail.com
Subject: Re: [SR-Users] FW: Kamailio as sipRedirect
Dear Daniel,
Attached is my config file.
Is it correct to set $ru=”sip:.*@192.168.111.138"; in case I need any number to be
redirected to 192.168.111.138.
Thanks.
From: sr-users-bounces(a)lists.sip-router.org [mailto:sr-users-bounces@lists.sip-router.org]
On Behalf Of Fatima Chahrour~Vanrise Support
Sent: Wednesday, September 05, 2012 5:19 PM
To: miconda(a)gmail.com
Cc: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing
List'
Subject: Re: [SR-Users] FW: Kamailio as sipRedirect
Hi Daniel,
The call is not redirected to 1st kamailio, below is the call trace where 2nd
kamailio(192.168.111.139) send request to 192.168.111.15 which is the gateway in the lcr
rule instead of sending this invite to 192.168.111.138.
U 192.168.111.139:5060 -> 192.168.111.15:5060 (shouldn’t this be 192.168.111.138:5060
instead??)
INVITE sip:22#96135050@192.168.111.15 SIP/2.0.
Record-Route: <sip:192.168.111.139;lr=on>.
Record-Route: <sip:192.168.111.138;lr=on>.
Via: SIP/2.0/UDP 192.168.111.139;branch=z9hG4bK5757.5b3b1975.0.
Via: SIP/2.0/UDP 192.168.111.138;branch=z9hG4bK5757.50ff9264.0.
Via: SIP/2.0/UDP
192.168.52.139:12650;received=192.168.111.11;branch=z9hG4bK-d8754z-85008205ba3ea607-1---d8754z-;rport=12650.
Max-Forwards: 68.
Contact: <sip:106@192.168.111.11:12650>.
To: "96135050"<sip:96135050@192.168.111.138>.
From: "106"<sip:106@192.168.111.138>;tag=56645478.
Call-ID: ZjJlYWYzZmJmYmJlMGE0MmYxYWUwYjYwZmY5MmJkMjg..
CSeq: 1 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1100l stamp 47546.
Content-Length: 477.
This is my Kamailio routing logic configured on the 1st Kamailio to forward any call from
1st kamialio to 2nd kamailio:
if (is_method("INVITE"))
{
Sethostport(“192.168.111.139:5060”);
Append_branch();
}
My problem is hereà This is my Kamailio routing configured on 2nd kamailio which I want
from it to send back the call, with lcr_gateway already defined, to 1st Kamailio:
if (is_method("INVITE"))
{
if (!load_gws("1")) {
sl_send_reply("503", "Unable to load gateways");
exit;
}
if(!next_gw()){
sl_send_reply("503", "Unable to find a gateway");
exit;}
route(1);
$ru="sip:.*@192.168.111.138";
send_reply("302","rEdIrEcTeD");
km_append_branch("uri");
}
Am looking through many documents but can’t achieve my target, I want the 2nd Kamailio,
which has LCR configured on it, to send back to 1st Kamailio the gateway from lcr_gateways
with 302 redirect message.
My questions are:
How to achieve this?
Do you suggest any document that help?
Do I need to load any specific module?
Thanks,
F Chahrour
From: Daniel-Constantin Mierla [mailto:miconda@gmail.com]
Sent: Wednesday, September 05, 2012 9:38 AM
To: Fatima Chahrour~Vanrise Support
Cc: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing
List'
Subject: Re: [SR-Users] FW: Kamailio as sipRedirect
Hello,
You set r-uri ($ru) to an IP address only -- it has to be a full SIP URI.
Cheers,
Daniel
On 9/4/12 5:34 PM, Fatima Chahrour~Vanrise Support wrote:
Hello,
Thanks for your reply.. am able to make the call reach from 3CX to Kamailio using the
src_ip, thank you, but still not able to redirect the call invite from Kamailio to 3CX and
send the 302 message.
Kamailio instead of 3CX
192.168.111.138
Kamailio
192.168.111.139
Phone A (192.168.111.11)
302
Phone B (192.168.111.10)
Herby what am putting in my routing:
If (is_method("INVITE"))
{ if(!load_gateway("1")) {
sl_send_reply("503", "unable to load gateways");
Exit; }
{ if(! next_gateway()) {
sl_send_reply("503", "unable to find gateways");
Exit; }
Route(1);
$ru = "192.168.111.138";
send_reply("302", "Redirected";
Km_append_branch(“uri”);
Exit;
What am I doing is wrong in the above script? And causing “call failed”! attached
‘test.txt’ the ngrep capture if needed.
Your help is highly appreciated.
Kind Regards,
F Chahrour
