[Kamailio-Users] incorrect tag in ACK message

[Klaus Darilion]

Hi!

In a successful INVITE transaction Kamailio does not produce ACK 
messages and thus does not produce to-tags. The 200 Ok is relayd to the 
caller. The caller sends ACK which will be forwarded by Kamailio.

I currently see 3 possibilities:
  - the caller uses the wrong totag
  - the trace is mixed up
  - you change the To header manually in the configuration file

regards
klaus

Alex R.S.M schrieb:
> 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?
> 
> Thanks,
> AR
> 
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