找考题网-背景图
单项选择题

A.P,S,T,UB.U,T,S,PC.S,U,P,TD.P,U,S,TE.S,P,U,TF.S,P,T,UR……

Refer to the exhibit. Which option correctly describes the order of signaling and call processing events when a branch employee calls headquarters?()



A.P,S,T,U
B.U,T,S,P
C.S,U,P,T
D.P,U,S,T
E.S,P,U,T
F.S,P,T,U

热门试题