HI All,

I have a query regarding Cancelling a call before Provisional response.

As per RFC 3261,  CANCEL can be sent after a provisional response (1xx
response other than 100) receivecd. Suppose i make a call
 steps:
    1) INIVITE sent to Callee
     2)  Callee didn't send anything

Now i want to cancell the call.
What shold be call  flow ?

Thanks,
Anjan
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