From: "=?UTF-8?Q?I=C3=B1aki_Baz_Castillo?=" <[EMAIL PROTECTED]>

   Hi, let me explain this scenario:
   - UA3 subscribes to dialogs event for UA1 AoR.- UA1 receives a call from 
UA2.- UA3 is notified about the state of this call.- UA1 puts the call on 
hold.- UA3 realizes on it and press "a button" in him terminal to retrievethe 
call by sending an INVITE to UA2 with "replaces".
   Is it feasible just with BLF - RFC 4235?Or do we need other complex 
mechanims as BLA?

Why do you think the information in the dialog event package (RFC
4235) is not sufficient to construct and INVITE-with-Replaces that
would extract the call?

Dale
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