Rajani,

>Hi Shinji,
>
>Now i understood that
>
>UAC                           UAS
>
>1.INVITE ------------>
>2.          <------------407-INVITE
>3.ACK--------------->
>
>4.INVITE----------->  (new INVITE sent after 407 challenge response)
>5.       < ---------------- 180
>6.        <---------------- 200
>7      ------------------->ACK
>
>Credentials present in INVITE from step 4 and ACK in step 7 must be 
>same.
>Hope it's correct?

Correct.
Just to be sure the credential of 1 is different from
the one of 4.

Regards,
Shinji

>Thanks,
>Rajani
>
>
>OKUMURA Shinji wrote:
>> Rajani,
>>
>> The sentence is relevant only to 2xx to INVITE.
>> And basically an ACK a UAS receives is sent by a proxy.
>> A proxy will have no credential.
>> That is, the ACK need not have a credential.
>>
>> Regards,
>> Shinji
>>
>> "rajanikanth.ha" <[email protected]>
>> Wed, 26 May 2010 11:06:56 +0530
>>   
>>> Hi all,
>>>
>>> Can anybody please suggest me how to check the following 
>>> requirement of 
>>> RFC3261:
>>>
>>> In section 13.2.2.4 2xx Responses of RFC3261
>>> The ACK MUST contain the same credentials as the INVITE.
>>>
>>> UAC                           UAS
>>>
>>> 1.INVITE ------------>
>>> 2.          <------------407-INVITE
>>> 3.ACK--------------->
>>>
>>> Do i have to check credentials in the ACK message sent in the step 
>>> 3 
>>> with that of INVITE request sent in step1?
>>> Is it correct?
>>>
>>> --
>>> Thanks,
>>> Rajani
>>>     
>> _______________________________________________
>> Sip-implementors mailing list
>> [email protected]
>> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
>>
>>   
>
>_______________________________________________
>Sip-implementors mailing list
>[email protected]
>https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors

Reply via email to