[SIPForum-discussion] SIP decode issue

[Victor Pascual Ávila]

2009/1/4 乔 <qiaofenger at 163.com>:
>
> Hello everyone，
>
>     I have some doubt on the 'Cseq' item. Could you help me?
>
>    It is said that 'CSeq' number is incremented for each new request within
> a dialog and is a traditional sequence number in the RFC3261.
>
>       But I found that the 'Cseq' for the 'Invite' is 1, the following
> 'Cseq' of command 'Bye' is 101. and they are the one same call. Is it right
> or the analyzer software is wrong?

Despite that requests within a dialog must contain strictly
monotonically increasing and contiguous CSeq sequence numbers, some
UAs I've been testing do not follow the "increasing-by-one" principle.

Cheers,
-- 
Victor Pascual Ávila