How to troubleshoot the situation where calls cannot be made or video backhaul fails after the IDM MCC580 is powered on?

To troubleshoot abnormal calls and video backhaul on the IDM MCC580 portable multi-mode converged communication terminal, it is recommended to proceed in the following order: first check whether the terminal has registered with the target network and whether the SIM card and the signal are normal; then confirm whether the terminals participating in the communication are on the same mesh network and on the same frequency, and for a centerless ad-hoc network, wait until networking succeeds before initiating a call; then verify whether the SIP telephone gateway and the softswitch server have consistent address and port configurations. When the video backhaul shows no picture, check the connections between the Gigabit RJ45 port and the softswitch server and between the 100 Mbps RJ45 port and the external network or IP terminal, as well as the uplink bandwidth. For routine maintenance, it is recommended to switch off the power before plugging or unplugging expansion modules and to clean the lens regularly. If the service remains abnormal, it is recommended to contact the manufacturer's technical support.