[Kamailio-Users] incorrect tag in ACK message

[Alex Balashov]

So, what you're saying is that the ACK (response to 200 OK from 
endpoint) from the softswitch comes with a To tag of 1_1555_t58918_125k 
to Kamailio, but the ACK that Kamailio sends out to the endpoint has an 
altered To tag?  Have you checked?

Alex R.S.M wrote:

> Alex,
> 
> The other end-point is a softswitch. I made a direct test call excluding 
> kamailio. Everything was fine, calls go thru with correct tag value.
> 
> 
> 
>  > Date: Mon, 17 Nov 2008 10:10:26 -0500
>  > From: abalashov at evaristesys.com
>  > To: alex_rsm at hotmail.com
>  > CC: users at lists.kamailio.org
>  > Subject: Re: [Kamailio-Users] incorrect tag in ACK message
>  >
>  > Alex,
>  >
>  > Are you sure this is not a bug with the other endpoint (the other side
>  > of the call)? The end-to-end ACK for the 200 OK would have to originate
>  > from it and Kamailio would merely be relaying it. Is it possible that
>  > it is in fact that UA which is ignoring the To tag in the 200 OK from
>  > 1.1.1.1?
>  >
>  > -- Alex
>  >
>  >
>  > Alex R.S.M wrote:
>  >
>  > > Hi,
>  > >
>  > > I made a simple SIP test call. The end point reply to kamailio with 
> 180,
>  > > 200 messages. The end point includes "tag=1_1555_t58918_125k" in TO
>  > > field of these messages. However, kamailio reply with ACK message that
>  > > includes a random tag (tag=5f08ae5f) in TO field. This tag is not the
>  > > same as the one sent by the end point:
>  > >
>  > > 1.1.1.1 end-point ip address
>  > > 2.2.2.2 kamailio ip address
>  > >
>  > > INVITE
>  > > From: <sip:1.1.1.1 at 2.2.2.2>;tag=snl-1226930829-1404351227071264-11
>  > > To: <sip:14078789913 at x.x.x.x;user=phone>
>  > > Call-ID: 9280396221-9479318750707221-11-7604239022
>  > >
>  > > 180
>  > > From: <sip:1.1.1.1 at 2.2.2.2>;tag=snl-1226930829-1404351227071264-11
>  > > To: <sip:14078789913 at x.x.x.x;user=phone>;*tag=1_1555_t58918_125k*
>  > > Call-ID: 9280396221-9479318750707221-11-7604239022
>  > >
>  > > 200
>  > > From: <sip:1.1.1.1 at 2.2.2.2>;tag=snl-1226930829-1404351227071264-11
>  > > To: <sip:14078789913 at x.x.x.x;user=phone>;*tag=1_1555_t58918_125k*
>  > > Call-ID: 9280396221-9479318750707221-11-7604239022
>  > >
>  > > ACK
>  > > From: <sip:1.1.1.1 at 2.2.2.2>;tag=snl-1226930829-1404351227071264-11
>  > > To: <sip:14078789913 at 2.2.2.2;user=phone>;*tag=5f08ae5f*
>  > > Call-ID: 9280396221-9479318750707221-11-7604239022
>  > >
>  > > How can I force it to send the correct tag?
>  >
>  > --
>  > Alex Balashov
>  > Evariste Systems
>  > Web : http://www.evaristesys.com/
>  > Tel : (+1) (678) 954-0670
>  > Direct : (+1) (678) 954-0671
>  > Mobile : (+1) (706) 338-8599
> 
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-- 
Alex Balashov
Evariste Systems
Web    : http://www.evaristesys.com/
Tel    : (+1) (678) 954-0670
Direct : (+1) (678) 954-0671
Mobile : (+1) (706) 338-8599