El Jueves, 29 de Enero de 2009, Ivar Lumi escribió: > >Correct. It is entirely possible to do 3pcc without INVITE. However, > >the phone must support out of dialog REFER. This poses a security risk > >which can be mitigated by authentication of the REFER. > > I don't see why REFER can't do following. > *) Target phone gets REFER and rings > *) Phone displays refer info to user > *) user can accept or reject refer
Sure, for exmaple Twinkle softphone already implements it (asking a user for permission when receiving an indialog-request). Not still for REFER initial-request but it would be the same. -- Iñaki Baz Castillo _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
