[SIPForum-discussion] Time interval between requests

[mtrank at apexvoice.com]

Mustafa:

Just as I thought, from Section 9.1 of RFC3261:

"If no provisional response has been received, the CANCEL request MUST
   NOT be sent; rather, the client MUST wait for the arrival of a
   provisional response before sending the request."


-- Mike


> Hi All,
>  
> Is there any time frame mentioned in RFCs which defines time interval
> between REQUESTS? For example, can UAC send CANCEL of a RE-INVITE just
> 0.0004 sec later ?  I tested some SIP servers , but none of them could
> handle the CANCEL properly when it comes just in such a short interval,
> but I  need to refer to RFCs in order to prove this wrong behaviour to
> vendor.
>  
> Thanks,
> Mustafa AYDIN_______________________________________________
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