AT+COPS? → {‘response’: [‘AT+COPS?\r’, ‘+COPS: 0’, ‘OK’], ‘status’: 0}
AT+COPS=? → {‘response’: ‘timeout’, ‘status’: 2}
AT+CSQ → {‘response’: ‘timeout’, ‘status’: 2}
AT+CGATT? → {‘response’: ‘timeout’, ‘status’: 2}
AT+QNWINFO → {‘response’: ‘timeout’, ‘status’: 2}