In some cases, the carrier network may be shut down for security purpose(e.g., criminals might remotely control a bomb via s public carrier network).
3. In big events
In big events, the carrier network can become congested and cannot guarantee quality of Service(QoS).
In some cases, the carrier network may be shut down for security purpose(e.g., criminals might remotely control a bomb via s public carrier network).
3. In big events
In big events, the carrier network can become congested and cannot guarantee quality of Service(QoS).
