在信令上识别用户VoLTE已开户的依据为以下哪些条件?()
A.AttachRequest携带IMSVoPS=IMSvoiceoverpssessionisS1modesupported(1)的用户
B.Attachaccept携带IMSVoPS=IMSvoiceoverpssessionisS1modesupported(1)的用户
C.TAURequest携带IMSVoPS=IMSvoiceoverpssessionisS1modesupported(1)的用户
D.TAUaccept携带IMSVoPS=IMSvoiceoverpssessionisS1modesupported(1)的用户