On 04 Apr 2016, at 10:02, Grant Bagdasarian
<gb(a)cm.nl> wrote:
Hi Daniel,
You mentioned below about this issue not being complaint with the RFC.
Our supplier is telling us this is normal behavior and that they went through the RFC and
found this was normal behavior.
If it’s not too much work, could you tell me in which part of the RFC this is described?
8.2.6.2 <https://tools.ietf.org/html/rfc3261#section-8.2.6.2> Headers and
Tags
The From field of the response MUST equal the From header field of
the request. The Call-ID header field of the response MUST equal the
Call-ID header field of the request. The CSeq header field of the
response MUST equal the CSeq field of the request. The Via header
field values in the response MUST equal the Via header field values
in the request and MUST maintain the same ordering.
RFC 3261 basics.
/O
Regards,
Grant
From: Daniel-Constantin Mierla [mailto:miconda@gmail.com
<mailto:miconda@gmail.com>]
Sent: Friday, March 18, 2016 4:33 PM
To: Grant Bagdasarian <gb(a)cm.nl <mailto:gb@cm.nl>>; Kamailio (SER) - Users
Mailing List <sr-users(a)lists.sip-router.org
<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply
Hello,
the problem is that the device you interconnect with (Server: sbc_5) is not sending all
the Via headers from INVITE in the 487 -- it is only one Via:
# U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 487 Request Cancelled.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>
<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060>
<sip:0031123456789@10.14.0.3:5060>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060> <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
Notice the 100 trying Via stack:
# U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP
10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>
<sip:+31612345678@10.14.0.3:5060>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060> <sip:0031123456789@10.14.0.3:5060>.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060> <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
My guess that the sbc_5 is so poor implemented that it takes the Via from last request,
which is CANCEL, but CANCEL is a hop-by-hop request in this case. If my guess is
confirmed, the implementation of sbc_5 is really far away from RFC3261, something that I
haven't probably seen since 2002/3.
To test, you can try to use forward() for CANCEL instead of t_relay(). But you need to
know where to send it -- same address as for INVITE -- you can hardcode some values in
config for sake of simplicity to test. A proper workaround can be built using htable
module to store where the invite was sent, using call-id as a key.
Cheers,
Daniel
On 18/03/16 15:43, Grant Bagdasarian wrote:
Hi Daniel,
No problem J
Our devices are kamailios. Our customers use different equipment for sending traffic and
I’m not sure what kind of equipment our carriers are using. So, I can’t really tell what
device they’re using. My test was done using Bria (X-Lite) acting as a “customer”.
Regards,
Grant
From: Daniel-Constantin Mierla [mailto:miconda@gmail.com
<mailto:miconda@gmail.com>]
Sent: Friday, March 18, 2016 10:25 AM
To: Grant Bagdasarian <gb(a)cm.nl> <mailto:gb@cm.nl>; Kamailio (SER) - Users
Mailing List <sr-users(a)lists.sip-router.org>
<mailto:sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply
Hello,
with CeBIT trip this week, I didn't get the change to look too much at it...
What is the device sending the reply to INVITE?
Cheers,
Daniel
On 18/03/16 10:05, Grant Bagdasarian wrote:
Hello Community,
Could someone point me into the right direction for fixing this issue with CANCEL
replies?
Regards,
Grant
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org
<mailto:sr-users-bounces@lists.sip-router.org>] On Behalf Of Grant Bagdasarian
Sent: Tuesday, March 15, 2016 8:47 PM
To: 'miconda(a)gmail.com <mailto:miconda@gmail.com>'
<miconda(a)gmail.com> <mailto:miconda@gmail.com>; Kamailio (SER) - Users Mailing
List <sr-users(a)lists.sip-router.org> <mailto:sr-users@lists.sip-router.org>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply
Any ideas how to solve this?
Regards,
Grant
From: sr-users <sr-users-bounces(a)lists.sip-router.org
<mailto:sr-users-bounces@lists.sip-router.org>> on behalf of Grant Bagdasarian
<gb(a)cm.nl <mailto:gb@cm.nl>>
Sent: Monday, March 14, 2016 3:09:47 PM
To: 'miconda(a)gmail.com <mailto:miconda@gmail.com>'; Kamailio (SER) - Users
Mailing List
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply
Hello Daniel,
Carrier: 10.0.0.1
Kamailio 1: 10.14.0.1
Kamailio 2: 10.14.0.2
I also removed the SDP from the INVITE and the 183 messages.
This is the trace from the Kamailio which directly communicates with the Carrier.
U 10.14.0.2:5060 -> 10.14.0.1:5060
INVITE sip:0031123456789@10.14.0.1:5060 <sip:0031123456789@10.14.0.1:5060>
SIP/2.0.
Record-Route: <sip:10.14.0.2;lr=on <sip:10.14.0.2;lr=on>>.
Record-Route: <sip:10.14.0.3;lr=on <sip:10.14.0.3;lr=on>>.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP
10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
Max-Forwards: 68.
Contact: <sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89
<sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89>>.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 INVITE.
Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO, MESSAGE.
Content-Type: application/sdp.
User-Agent: Bria 4 release 4.2.1 stamp 78100.
Content-Length: 431.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP
10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 INVITE.
Server: kamailio (4.3.4 (x86_64/linux)).
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.0.0.1:5060
INVITE sip:0031123456789@10.0.0.1:5060 <sip:0031123456789@10.0.0.1:5060> SIP/2.0.
Record-Route: <sip:10.14.0.1;lr=on <sip:10.14.0.1;lr=on>>.
Record-Route: <sip:10.14.0.2;lr=on <sip:10.14.0.2;lr=on>>.
Record-Route: <sip:10.14.0.3;lr=on <sip:10.14.0.3;lr=on>>.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP
10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
Max-Forwards: 67.
Contact: <sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89
<sip:10.14.0.3;line=sr-1sX9bA20uS8PuS8NWSFPWUiPW0IRuS8RuJHNuQ4KuQ89>>.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 INVITE.
Allow: SUBSCRIBE, NOTIFY, INVITE, ACK, CANCEL, BYE, REFER, INFO, MESSAGE.
Content-Type: application/sdp.
User-Agent: Bria 4 release 4.2.1 stamp 78100.
Content-Length: 431.
#
U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Via: SIP/2.0/UDP 10.14.0.3;branch=z9hG4bK3c3b.9cad3c629aa5c2985e543c285f2f6d1d.0.
Via: SIP/2.0/UDP
10.14.0.3;branch=z9hG4bKsr-jNXap0IRuJngh6iFuS1xpYUspYiRWQikWSisuQfjcQKOM-8C8odTwzW4V-4LMU1N8O2fWSINuYFmpSUfpcKXuq8NW0is8YdObqasuQuP.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.2:5060 -> 10.14.0.1:5060
CANCEL sip:0031123456789@10.14.0.1:5060 <sip:0031123456789@10.14.0.1:5060>
SIP/2.0.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
Max-Forwards: 68.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 CANCEL.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.0.0.1:5060
CANCEL sip:0031123456789@10.0.0.1:5060 <sip:0031123456789@10.0.0.1:5060> SIP/2.0.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Max-Forwards: 67.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 CANCEL.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 200 canceling.
Via: SIP/2.0/UDP 10.14.0.2;branch=z9hG4bK3c3b.6002c178e1a0751f80857e10c4caeb35.0.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=a6a1c5f60faecf035a1ae5b6e96e979a-52bb.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 CANCEL.
Server: kamailio (4.3.4 (x86_64/linux)).
Content-Length: 0.
.
#
U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060 <sip:0031123456789@10.14.0.3:5060>>.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 CANCEL.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 487 Request Cancelled.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.0.0.1:5060
ACK sip:0031123456789@10.0.0.1:5060 <sip:0031123456789@10.0.0.1:5060> SIP/2.0.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK3c3b.a6603e0f92db305f775f8bf1d95dc7d9.0.
Max-Forwards: 67.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
CSeq: 2 ACK.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 487 Request Cancelled.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 487 Request Cancelled.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 487 Request Cancelled.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 487 Request Cancelled.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060
<sip:+31612345678@10.14.0.3:5060>>;tag=1f15682a.
To: <sip:0031123456789@10.14.0.3:5060
<sip:0031123456789@10.14.0.3:5060>>;tag=sbcsipuas_1_C52464_20160314100333554_b12sb10.
Call-ID: 78100ZGIyZGM2ZTY4ODM4YWZlZGFjNTBjMDZmYjQzMzBkOGI.
Contact: <sip:10.0.0.1:5060 <sip:10.0.0.1:5060>>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
From: sr-users [mailto:sr-users-bounces@lists.sip-router.org
<mailto:sr-users-bounces@lists.sip-router.org>] On Behalf Of Daniel-Constantin
Mierla
Sent: Monday, March 14, 2016 2:44 PM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.sip-router.org
<mailto:sr-users@lists.sip-router.org>>
Subject: Re: [SR-Users] Kamailio 4.3.4: receive_msg(): no via found in reply
Hello,
what would be relevant here is seeing the INVITE request sent to 10.14.0.1:5060 -- paste
it to the mailing list discussion. That is going to be used to generate 487, and the Via
stack from it should be used there.
Cheers,
Daniel
On 14/03/16 13:23, Grant Bagdasarian wrote:
Hello,
We’re testing kamailio 4.3.4 with two kamailio’s communicating with each other. One of
them is a gateway with rtpengine at the carrier side, the other is a basic sip router.
When calling a destination and cancelling the INVITE a 487 is received from the carrier
and directly ACK’d by the first kamailio and in turn is forwarded to the second.
But the 487 response received by the 2nd kamailio doesn’t have a Via header which results
in kamailio printing the error: receive_msg(): no via found in reply.
Any ideas why the forwarded 487 doesn’t contain a Via header and how to fix this?
Note: IP’s are changed.
Carrier: 10.0.0.1
Kamailio 1: 10.14.0.1
Kamailio 2: 10.14.0.2
U 10.0.0.1:5060 -> 10.14.0.1:5060
SIP/2.0 487 Request Cancelled.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>
<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
To: <sip:003112345678@10.14.0.3:5060>
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
Contact: <sip:10.0.0.1:5060> <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.0.0.1:5060
ACK sip:003112345678@10.0.0.1:5060 <sip:003112345678@10.0.0.1:5060> SIP/2.0.
Via: SIP/2.0/UDP 10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.
Max-Forwards: 67.
To: <sip:003112345678@10.14.0.3:5060>
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
From: "+31612345678"<sip:+31612345678@10.14.0.3:5060>
<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
CSeq: 2 ACK.
Content-Length: 0.
.
#
U 10.14.0.1:5060 -> 10.14.0.2:5060
SIP/2.0 487 Request Cancelled.
From: "+31612345678" <sip:+31612345678@10.14.0.3:5060>
<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
To: <sip:003112345678@10.14.0.3:5060>
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
Call-ID: 78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
Contact: <sip:10.0.0.1:5060> <sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
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Daniel-Constantin Mierla
http://www.asipto.com <http://www.asipto.com/>
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -
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Kamailio World Conference, Berlin, May 18-20, 2016 -
http://www.kamailioworld.com
<http://www.kamailioworld.com/>
--
Daniel-Constantin Mierla
http://www.asipto.com <http://www.asipto.com/>
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> -
http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio World Conference, Berlin, May 18-20, 2016 -
http://www.kamailioworld.com
<http://www.kamailioworld.com/>
--
Daniel-Constantin Mierla
http://www.asipto.com <http://www.asipto.com/>
http://twitter.com/#!/miconda <http://twitter.com/#!/miconda> -
http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio World Conference, Berlin, May 18-20, 2016 -
http://www.kamailioworld.com
<http://www.kamailioworld.com/>_______________________________________________
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