Hi, RFC 3725 "Best Current Practices for Third Party Call Control
(3pcc) in SIP" defines a way to create third party calls by sending an
INVITE to both, the caller and the callee.

I don't like it at all, it seems not ellegant hack IMHO:

- Alice uses a Click2Dial web page to call Bob.
- The web server generates an INVITE which arrives to Alice's phone and so...

This means that this call will appear in the phone call list as a
*received* call, when the *real* concept is that it's an outgoing call
(from Alice's point of view).

So I prefer the simple initial-request REFER approach already defined
in RFC 3515 (REFER method) but I do know that it's not implemented in
most of the phones. Perhaps I'm wrong? is it implemented somewhere? If
not... why? It seems a really ellegant and clean solution.

Thanks.

-- 
Iñaki Baz Castillo
<[email protected]>

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