Yes, mqtt is using TLS, the config is pretty trivial
``` modparam("mqtt", "host", MQTT_HOST) modparam("mqtt", "port", 8883) modparam("mqtt", "keepalive", 5) modparam("mqtt", "id", MQTT_NODE_NAME) modparam("mqtt", "username", MQTT_USER) modparam("mqtt", "password", MQTT_PASS) modparam("mqtt", "will_topic", "kamailio123") modparam("mqtt", "will", "gone") modparam("mqtt", "verify_certificate", 0) // this will enable TLS modparam("mqtt", "ca_file", "/ssl/ca.crt") ```