Reply for ACK

Hello again Pablo,

I remember we were having the same issue with OpenSER and
that it didn't 
appear with SER. There must be a problem with our messages
(or the way 
open ser is treating them) but at the time we didn't have
much time to 
track it down so it is still unresolved. In case you find
it, we'd be 
very interested to know the reason!

Cheers
Emil

Pablo wrote:
> Hi!
> 
>  
> 
> I’m using SIP-Communicator with openser. When I make a
call from A to B, 
> and B accept the call, openser failed with:
> 
>  
> 
> WARNING:sl:sl_send_reply: I won't send a reply for
ACK!!
> 
>  
> 
> In consequence, B stays connecting and waiting the OK
to start the call.
> 
>  
> 
> It only happen with openser and sip-communicator. In
SER (Sip Express 
> Router) it works fine, and with other sip phones (like
x-lite) it also 
> works fine.
> 
>  
> 
> I don’t know what fail.
> 
>  
> 
> Thanks. Pablo.de
> 

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Can you look at what tags are being used and also what
transport is 
being used for the OK. It should be using TLS transport to
send the OK. 
 From and to tags should match. The contact specified in the
OK should 
be a sips url. Also you may want to capture and post the OK
from xlite 
and sip-comm here. I will eyeball the two and see if I
notice a 
discrepancy. Do you?

Regards,

Ranga

Emil Ivov wrote:

> Hello again Pablo,
>
> I remember we were having the same issue with OpenSER
and that it 
> didn't appear with SER. There must be a problem with
our messages (or 
> the way open ser is treating them) but at the time we
didn't have much 
> time to track it down so it is still unresolved. In
case you find it, 
> we'd be very interested to know the reason!
>
> Cheers
> Emil
>
> Pablo wrote:
>
>> Hi!
>>
>>  
>>
>> I’m using SIP-Communicator with openser. When I
make a call from A to 
>> B, and B accept the call, openser failed with:
>>
>>  
>>
>> WARNING:sl:sl_send_reply: I won't send a reply for
ACK!!
>>
>>  
>>
>> In consequence, B stays connecting and waiting the
OK to start the call.
>>
>>  
>>
>> It only happen with openser and sip-communicator.
In SER (Sip Express 
>> Router) it works fine, and with other sip phones
(like x-lite) it 
>> also works fine.
>>
>>  
>>
>> I don’t know what fail.
>>
>>  
>>
>> Thanks. Pablo.de
>>
>
>
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>
>


-- 
M. Ranganathan 

Advanced Networking Technologies Division,
National Institute of Standards and Technology (NIST),
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. 
tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/

Advanced Networking Technologies For the People!  


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