Terminal T1 Calling terminal T2 number 002, the call could not be successfully established, the possible cause Have (). Multiple selection

Terminal T1 Calling terminal T2 number 002, the call could not be successfully established, the possible cause Have (). Multiple selection
A . Terminal T1 or terminal T2 is not registered GK
B . Terminal T1 is set to do not disturb
C . Terminal T1 is on the public network, and terminal T2 is on the private network.
D . Terminal T2 goes to sleep state

View Answer

Answer: A