[OpenSIPS-Users] terminating early dialogs with BYE

[Bogdan-Andrei Iancu]

Hi Andrew,

Do you refer to the dialog module not terminating an early dialog if a 
bye is received ?

I know the RFC allows it, but never be able to actually test with 
something like that. On the other hand, I do not think we need to do 
anything special to support BYE in early state. In such a case, even if 
the dialog state machine will not be triggered by the BYE request, the 
BYE will get to the callee and callee will terminate the INVITE 
transaction with a negative reply (like 487 when cancelling)...So, the 
failed INVITE transaction will trigger the dialog termination..

Or maybe I fail to understand how this BYE for early dialogs 
works....Can you reproduce this scenario ?

Regards,
Bogdan

Andrew Pogrebennyk wrote:
> Hi,
> RFC3261 paragraph 15 Terminating a Session says:
>    When a BYE is received on a dialog, any session
>    associated with that dialog SHOULD terminate.  A UA MUST NOT send a
>    BYE outside of a dialog.  The caller's UA MAY send a BYE for either
>    confirmed or early dialogs, and the callee's UA MAY send a BYE on
>    confirmed dialogs, but MUST NOT send a BYE on early dialogs.
> However early dialog termination with BYE appears to be not supported 
> in OpenSIPS. If there any known solution to that?