[Asterisk-Dev] SIP channels not cleared

[Ronald Wiplinger]

Kevin P. Fleming wrote:

> Chee Foong wrote:
>
>> I have check with the other end's provider. They insists that asterisk
>> should be able to accept BYE at any stage in the sip message 
>> exchange. Is
>> this really true?
>
>
> No, that is not true. BYE is only allowed for a session that was 
> started with an INVITE and accepted with a '200 OK'. If the INVITE has 
> not been OK'd, then a 4xx or 5xx failure response must be sent to 
> cancel the pending INVITE, not BYE.


Kevin, I don't doubt your words, ... Where can I read about that?


bye

Ronald Wiplinger