[SIPForum-discussion] C-seq ?

[Shakthi]

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

       
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