Thank you

Does B violates some standard changing original PAI value?

21.01.2019, 11:09, "OKUMURA Shinji" <ietf.shi...@gmail.com>:
> Hi,
>
> RFC3325/9.1
>        Header field where proxy ACK BYE CAN INV OPT REG
>        ------------ ----- ----- --- --- --- --- --- ---
>        P-Asserted-Identity adr - o - o o -
>
> RFC3261/20 says,
>        An empty entry in the "where" column indicates that the header
>        field may be present in all requests and responses.
>
> According to the above, PAI may be present in responses of INVITE.
>
> And PAI in responses indicates callee's ID.
>
> Regards,
> Shinji
>
> On 2019/01/18 22:22, r...@yandex.ru wrote:
>>  Hi everyone
>>
>>  Could some point to the doc or maybe clarify if B is correct in the 
>> following.
>>
>>  A sends INVITE to B. There is PAI header, lets say P-Asserted-Identity: 
>> "Alice" <sip:+1...@hostname.com>
>>
>>  B in reply (SIP/183 and SIP/200) sends for example P-Asserted-Identity: 
>> "Bob" <sip:+4...@abcd.com>, that means PAI header completely differs from 
>> that in INVITE.
>>
>>  A acts like it doesn't see SIP/183, SIP/200.
>>
>>  Please advise if changing of PAI in this case is correct.
>
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