SimCom SIM7500 Series

Smart Machine Smart Decision
SIM7500_SIM7600_SIM7800 Series_MQTT_AT Command Manual 11 / 41
2.2 MQTT Services AT
2.2.1 AT+CMQTTSTART Start MQTT service
AT+CMQTTSTART is used to start MQTT service by activating PDP context. You must execute this command
before any other MQTT related operations.
AT+CMQTTSTART Start MQTT service
Execute Command
AT+CMQTTSTART
Response
a)If start MQTT service successfully:
OK
+CMQTTSTART: <err>
b)If start MQTTservice successfully:
+CMQTTSTART: <err>
OK
c)If failed:
ERROR
d)If failed:
ERROR
+CMQTTSTART: <err>
Maximum Response Time
120000ms
Defined Values
<err>
The result code, please refer to chapter 2.3.1
2.2.2 AT+CMQTTSTOP Stop MQTT service
AT+CMQTTSTOP is used to stop MQTT service.
AT+CMQTTSTOP STOP MQTT service
Execute Command
AT+CMQTTSTOP
Response
a)If stop MQTT service successfully:
+CMQTTSTOP: <err>
OK
b)If stop MQTT service successfully: