In the H.460 public and private network traversing dual SC networking, the communication between the terminal and Client GK follows the () protocol (Single choice)
In the remote disaster recovery scenario, when the master node (U1981) fails, POTS user A of a branch node (The branch site equipment is U1911). If you make an outgoing call to the local PSTN user B through the branch node, the network element through which the SIP signaling of the call passes is ().
When performing site backup on the SMC2.0, there is no need to do any configuration on the terminal side, just do the corresponding configuration on the SMC2.0. () Correct or Wrong
The interconnection between two U1900 series unified gateways can only be achieved through SIP trunking. ()