[reSIProcate] REFER support

[Boris Rozinov <borisrozinov@xxxxxxxx>]

Hi all,

Hi guys
I'll need to make pretty extensive use of REFER and I
got few questions about REFER support in DUM

1)      According to RFC 3515 REFER request MAY be placed
outside the scope of a dialog created with an INVITE.
It looks that DUM allows refer on in context of
connected InviteSession or I missed something?
2)      Is it possible to construct REFER with replace
header, when UA issuing REFER does not participate in
the dialog to be replaced and got its ID by some other
means (for example using subscription to Dialog Event
Package)?
3)      How NOTIFY can be correlated with REFER in case of
overlapping REFER subscriptions?

Thanks,
Boris