[SIPForum-discussion] C-seq ?

[santosh chintalwar]

Hi Shakthi

Plz see the comment.....


According to the following scenario, what should be the integer value for
> the C-seq in BYE request ?
>
> Is the C-seq value for the BYE request is correct?
>
>
> A      Proxy     B
>
> INVITE ---------->                 C-seq: 1 INVITE
> 180 <--------------                   C-seq: 1 INVITE
> 200 ok <---------                   C-seq: 1 INVITE
> ACK ------------->                  C-seq: 1 ACK
> BYE <------------                   C-seq: 2 BYE
> 200 ok ---------->                 C-seq: 2 BYE
>
> why the c-seq value is again " 1", for ACK?
>

 ( SANTOSH ).... According to RFC 3261
 ACK is considered as part of INVITE transcation therefor c-seq value is " 1
"..


ACK is also an method. So, plz tell me whether C-seq value should be "1" or
> "2" for ACK Method? and why?
>
>

Regards,
Santosh
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