Unsolicited Result Codes - SimCom SIM7500 Series Command Manual

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2.3.2 Unsolicited result codes

2.3.2.1 Disconnected by server
Unsolicited codes
+CMQTTCONNLOST:
<client_index>,<cause>
Defined Values
<client_index>
<cause>
SIM7500_SIM7600_SIM7800 Series_MQTT_AT Command Manual
client index error
no connection
invalid parameter
not supported operation
client is busy
require connection fail
sock sending fail
timeout
topic is empty
client is used
client not acquired
client not released
length out of range
network is opened
packet fail
DNS error
socket is closed by server
connection refused: unaccepted protocol version
connection refused: identifier rejected
connection refused: server unavailable
connection refused: bad user name or password
connection refused: not authorized
handshake fail
not set certificate
When client
"+CMQTTCONNLOST" will be reported, then user need to
connect MQTT server again.
A numeric parameter that identifies a client. The range of permitted
values is 0 to 1.
The cause of disconnection.
Smart Machine Smart Decision
disconnect passively, URC
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