[Users] ATA 188 problem ?

Bogdan-Andrei Iancu bogdan at voice-system.ro
Tue Jan 31 22:18:01 CET 2006

Hi Medve,

I would say the BYE is badly formatted:

U 2006/01/30 23:28:05.692840 NATBOX:5555 -> OPENSER:6060
BYE sip:imedve3 at XLITE SIP/2.0.
Route: <sip:7741 at OPENSER:6060;nat=yes;ftag=1123414629;lr=on>.
Via: SIP/2.0/UDP;branch=z9hG4bKce5c531019c8eec7.
From: sip:7741 at sip2;tag=1700830800.
To: imedve3 <sip:imedve3 at sip2>;tag=1123414629.
Call-ID: A412855F-F4E3-470E-AC30-F047AE517CA1 at XLITE.
CSeq: 1 BYE.
User-Agent: Cisco ATA 188  v3.2.0 atasip (041111A).
Content-Length: 0.

the FROM hdr is broken - the uri needs to be enclosed between brackets 
since the tag is a hdr param and not an URI param. The proper format 
would be:

	From: <sip:7741 at sip2>;tag=1700830800.


Medve Istvan wrote:

>Hi List,
>I have similar problem what you can read at
>In my test lab I use openser 1.0.0 with mediaproxy. UAC A is an X-Lite
>with public IP. UAC B is a Cisco ATA 188 behind a natbox. Usernames are
>not numericals but I use alias table to resolve username based on CLI.
>Everything works fine expect one situation.
>When X-Lite calls Cisco ATA and call terminated by calee side with BYE,
>Cisco ATA does not recognize X-lite's 200 OK response and resends BYE
>message some times.
>ATA 188 reports the folowing to syslog:
>Jan 30 22:33:29 a 00:02:23 [08]:Tags do not match
><134>00:02:23 [08]:Failed to extract UID from RxMsg
>If I replace ATA188 with an ATCOM phone, this sutiation works well.
>So the problem is probably with Cisco ATA 188 but I am not sure that is it
>a real problem or Cisco ATA more sensitive for protocol violation than
>others or there is a missconfiguratin in nat traversal.
>You can find SIP message capture at http://fuhur.euroweb.hu/ata.txt
>If you have any ideal please let me know.
>Users mailing list
>Users at openser.org

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