Which of the following is supported by the main control board switchover?

What Signaling are there in terminal registration G}? (Select 3 answers)

In video products in the network diagram, which layer is Switch Manager located in ? ( )

Which of the following HD camera mode to configure whether to allow the camera to forward infrared signals to the terminal?( )

SMC2.0 add a non-Huawei device, select "Other devices"