No. With MQTT, the client device makes a connection to some external MQTT server-- AWS, GCP, and Azure all have IoT bridges that speak MQTT. There's often an e

No. With MQTT, the client device makes a connection to some external MQTT server-- AWS, GCP, and Azure all have IoT bridges that speak MQTT. There's often an equivalent service over HTTP/1.1, where devices occasionally poll a remote endpoint for commands and to update state-- but without the persistent connection, you can't do realtime commands.