[Serusers] rfc 3262 support

[Kamal.Mann at t-systems.com]

Hi Darilion
Please check the following snippet from rfc-3262
"An element that can act as a proxy can also send reliable provisional
responses.  In this case, it acts as a UAS for purposes of that
transaction.  However, it MUST NOT attempt to do so for any request that
contains a tag in the To field.  That is, a proxy cannot generate
reliable provisional responses to requests sent within the context of a
dialog.  Of course, unlike a UAS, when the proxy element receives a
PRACK that does not match any outstanding reliable provisional response,
the PRACK MUST be proxied."

Regards
Kamal Mann

-----Original Message-----
From: Klaus Darilion [mailto:klaus.mailinglists at pernau.at] 
Sent: Thursday, October 19, 2006 3:03 PM
To: Greger V. Teigre
Cc: Mann, Kamal; serusers at lists.iptel.org
Subject: Re: [Serusers] rfc 3262 support

AFAIK PRACK is a client feature and is end to end. Thus, ser supports 
PRACK as any other generic SIP request.

Maybe you could fake PRACK requests or responses between a PRACK capable

client and the proxy, but this will cause end-to-end CSeq mismatch and 
would require a dialog stateful proxy to adapt the CSeqs.

regards
klaus

Greger V. Teigre wrote:
> AFAIK, this RFC is not implemented yet. As for a list, there is none 
> right now, but it's on the to-do list :-)
> g-)
> 
> Kamal.Mann at t-systems.com wrote:
>>
>> Hi All
>>
>> Do SER supports 'rfc 3262 Reliability of Provisional Responses in 
>> SIP'? Is there any list of standards supported by SER available??
>>
>>  
>>
>> Regards
>>
>> Kamal Mann
>>
>>  
>>
>>
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