[Serusers] SER is not matching ACK Messages

Nils Ohlmeier nils at iptel.org
Sun May 25 23:57:27 CEST 2003


Ok i first overlooked a problem in the messages.
I think the ATA is guilty because the request URI of the ACK is not the same 
as the URI from the INVITE. And if i'm not wrong the URIs has to be the same 
because the ACK for a negative reply belongs to the transaction.

U 63.77.141.227:5050 -> 200.219.173.140:5060
  INVITE sip:99638515 at sip.trdc.telenova.com.br;user=phone SIP/2.0..Via: SIP/2
  .0/UDP 63.77.141.227:5050..Via: SIP/2.0/UDP 192.168.0.2:5060..From: <sip:55
  514 at sip.trdc.telenova.com.br;user=phone>;tag=39420929..To: <sip:99638515 at si
  p.trdc.telenova.com.br;user=phone>..Call-ID: 1446977160 at 192.168.0.2..CSeq:
  2 INVITE..Contact: <sip:55514 at 63.77.141.227:5050;user=phone>..Authorization
  : Digest username="55514", realm="sip.trdc.telenova.com.br", nonce="3ed0dc0
  bff5ab94bf089aa864744f463e8e243ef", uri="sip:99638515 at sip.trdc.telenova.com
  .br", response="21434035966cd4cd8ef8dca75515b4b4"..user-agent: Cisco ATA  v
  2.15 ata186 (020918a)..expires: 300..Content-Type: application/sdp..Content
  -Length: 248  ....v=0..o=55514 11951 11951 IN IP4 192.168.0.2..s=ATA186 Cal
  l..c=IN IP4 63.77.141.227.t=0 0..m=audio 7070 RTP/AVP 18 8 0 101..a=rtpmap:
  18 G729/8000/1..a=rtpmap:8 PCMA/8000/1..a=rtpmap:0 PCMU/8000/1..a=rtpmap:10
  1 telephone-event/8000..a=fmtp:101 0-15..

[...]
U 63.77.141.227:5050 -> 200.219.173.140:5060
  ACK sip:99638515 at sip.trdc.telenova.com.br:5060 SIP/2.0..Via: SIP/2.0/UDP 63
  .77.141.227:5050..Via: SIP/2.0/UDP 192.168.0.2:5060..From: <sip:55514 at sip.t
  rdc.telenova.com.br;user=phone>;tag=39420929..To: <sip:99638515 at sip.trdc.te
  lenova.com.br;user=phone>;tag=d58c1e972d22d5f66f01bb0aca7a741a-edbe..Call-I
  D: 1446977160 at 192.168.0.2..CSeq: 2 ACK..user-agent: Cisco ATA  v2.15 ata186
   (020918a)..Content-Length: 0....

Regards
  Nils Ohlmeier

On Sunday 25 May 2003 23:29, Ricardo Villa wrote:
> Hi Nils,
> Here it is.
> I stopped the server, set debug=7 and log_stderror=yes, repeated the same
> call as before, then stopped the server and captured the output.  The file
> is attached.
>
> Regards,
> Ricardo
>
> ----- Original Message -----
> From: "Nils Ohlmeier" <nils at iptel.org>
> To: "Ricardo Villa" <ricvil at epm.net.co>; <aolchik at telenova.net>; "List
> serusers" <serusers at lists.iptel.org>
> Sent: Sunday, May 25, 2003 3:40 PM
> Subject: Re: [Serusers] SER is not matching ACK Messages
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