[OpenSIPS-Users] ACK doesnt get routed to endpoint

[Bogdan-Andrei Iancu]

Hi Arnold,

Yes, that is totally correct !

Regards,
Bogdan

On 02/28/2012 12:46 PM, Arnold Vriezekolk NETZOZEKER B.V. wrote:
> Hey Bogdan,
>
> You're right about that. My idea was that i could fix this problem with
> scripting. This is obviously wrong. I had no idea of how to get the 
> correct
> contact information into the sip packet, so i tried to solve it this way.
>
> What i'm seeing in the sip trace is that the 200 OK from our opensips 
> proxy
> has the correct contact information in it, but our sip provider sends 
> back the
> ACK without this contact information. So the problem is not on our 
> opensips
> side, but on the provider side. Would you say this is correct?
>
> Thanks for the clarification on the dialog variables.
>
> Best Regards,
>
> Arnold Vriezekolk
>
>
> On Tue, 28 Feb 2012, Bogdan-Andrei Iancu wrote:
>
>> Hi Arnold,
>>
>> If I understand you right, instead on focusing on fixing the root 
>> error, you are trying to cope with it in your script.
>>
>> As I said, the ACK you receive on .90 (from the previous hops) is 
>> bogus as it has incomplete route set (the contact info of callee is 
>> missing). So, it is not a problem in your script, but a problem with 
>> the previous SIP hops.
>>
>> Also, to answer to your questions - yes the ACK is part of the same 
>> dialog. But note that the dialog variables will be available (for 
>> ACK) only after doing the loose_route() - here is where the ACK is 
>> matched against the dialog. To check if the ACK matched the dialog 
>> (after loose_route), check the $DLG_status variable - if it is NULL, 
>> your ACK did not matched.
>>
>> Regards,
>> Bogdan
>>
>> On 02/28/2012 12:01 PM, Arnold Vriezekolk NETZOZEKER B.V. wrote:
>>> Thanks for the reply Bogdan,
>>>
>>> If the ACK has the same tag in the From header as the initial 
>>> INVITE, isnt
>>> that considered the same dialog?
>>>
>>> What i'm trying to achieve is set an AVP variable that has some 
>>> information
>>> about this call. Whenever i try to reach the variable at the point 
>>> the ACK
>>> message comes in from our sip provider the variable is empty.
>>>
>>> How can i make sure that when i set a variable at the initial INVITE 
>>> i can
>>> reach it when the ACK comes in? Script variables also dont seem to 
>>> work for
>>> me because they get overwritten. I might be able to set a variable 
>>> based on a
>>> unique descriptor based on the call.
>>>
>>> Best Regards,
>>>
>>> Arnold Vriezekolk
>>>
>>> On Fri, 24 Feb 2012, Bogdan-Andrei Iancu wrote:
>>>
>>>> Hi Arnold,
>>>>
>>>> The ACK you get in .90 is bogus, as it should have in RURI the .130 
>>>> IP from the
>>>> 200 OK Contact. Actually the end-point info from 200 OK (the .130) 
>>>> is not present
>>>> at all in the ACK, so basically the ACK cannot end up to that end 
>>>> point at all.
>>>>
>>>> Regards,
>>>> Bogdan
>>>>
>>>> On 02/24/2012 04:47 PM, Arnold Vriezekolk NETZOZEKER B.V. wrote:
>>>>       Hi,
>>>>
>>>>       In our setup we have a connection to a sip provider for incoming
>>>>       lines. We use
>>>>       opensips with the uac_registrant module to connect to this sip
>>>>       provider.
>>>>
>>>>       Whenever a call comes in, i use rewriteuri() and t_relay() to 
>>>> send it
>>>>       to an
>>>>       endpoint. When i pick up the call on my endpoint the ACK 
>>>> message from
>>>>       the sip
>>>>       provider doesn't get routed back to my endpoint, but somehow 
>>>> gets
>>>>       stuck in
>>>>       opensips. Thus failing the call after 3 seconds.
>>>>
>>>>       The ACK should be routed by the default sequential request 
>>>> block in
>>>>       the
>>>>       request route[0] afaik but it doesnt.
>>>>
>>>>       Can anyone point me as to where i can fix this problem?
>>>>
>>>>       I attached a pcap dump of the call for debugging purposes.
>>>>       Endpoint: sip:EEEEEEEE at netzozeker.tel.netzozeker.nl 
>>>> (95.97.29.130)
>>>>       SIP provider: 89.184.172.54
>>>>       OpenSIPS: 195.60.212.90
>>>>
>>>>       If you need more information please let me know, i can attach 
>>>> the
>>>>       opensips.cfg
>>>>       and the log of opensips for more debugging purposes.
>>>>
>>>>       Best Regards,
>>>>
>>>>       Arnold Vriezekolk
>>>>
>>>>
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at lists.opensips.org
>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>
>>>>
>>>>
>>>> -- 
>>>> Bogdan-Andrei Iancu
>>>> OpenSIPS Founder and Developer
>>>> http://www.opensips-solutions.com
>>>>
>>>>
>>
>>
>> -- 
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developer
>> http://www.opensips-solutions.com
>>
>>


-- 
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com