QTT_ERROR_PUBLISH_FORBIDDEN_QOS</b>, 
<b>MQTT_ERROR_SUBSCRIBE_TOO_MANY_TOPICS</b>, 
<br />
&#160;&#160;<b>MQTT_ERROR_MALFORMED_RESPONSE</b>, 
<b>MQTT_ERROR_UNSUBSCRIBE_TOO_MANY_TOPICS</b>, 
<b>MQTT_ERROR_RESPONSE_INVALID_CONTROL_TYPE</b>, 
<b>MQTT_ERROR_CONNECT_NOT_CALLED</b>, 
<br />
&#160;&#160;<b>MQTT_ERROR_SEND_BUFFER_IS_FULL</b>, 
<b>MQTT_ERROR_SOCKET_ERROR</b>, 
<b>MQTT_ERROR_MALFORMED_REQUEST</b>, 
<b>MQTT_ERROR_RECV_BUFFER_TOO_SMALL</b>, 
<br />
&#160;&#160;<b>MQTT_ERROR_ACK_OF_UNKNOWN</b>, 
<b>MQTT