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Introducing Session Mobility 3pcc A controller B C | | | | |<-dialog 1->|<-dialog 2->| | | | | | | *********************** | | |* MEDIA *| | | *********************** | | | | | | | | | | |<-dialog 1->|<------dialog 3----->| | | | | | ******************************** | |* MEDIA *| | ******************************** | | | | | | | | | |