[Serusers] CANCEL handling

[Bogdan-Andrei IANCU]

Martin Koenig wrote:

>Hello,
>
>I just noticed that SER is not generating a 200 OK as reply for a CANCEL but
>rather a 200 cancelling.
>  
>
yes...the rfc doesn't impose the reason phrase, just the code

>Then it is also generating a 487 Request cancelled what is supposed to be
>generated by the other end device reveiving the CANCEL.
>  
>
SER does a hop-by-hop cancellation of the INVITE.

>How is this possible? Is this according to RFC3261?
>  
>
yes, but this approach can generate race conditions (cancelling before 
the INVITE get to target UAS); on the other hand solves the problem with 
UASs that don't generate 487 for Cancels.


bogdan

>Regards,
>Martin
>
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