2008/9/17, karthik karthik <[EMAIL PROTECTED]>:
> Hello,
>  How can we play tone(intrusion) in active dialog?
>
>  For instance if A and B exist in active dialog.
>  IMS Application server serving A received a new call to A
>  and wishes to inform a waiting tone to A,
>  in the A-B active dialog.

Is not enough by sending a new INVITE from server to A (assuming that
A has call-waiting feature)?
IMHO this kind of mechanims (what you suggest) are not needed in SIP,
in fact they undesirable.

-- 
Iñaki Baz Castillo
<[EMAIL PROTECTED]>

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