At+Ceer Extended Error Report - Quectel EC25 Command Manual

RING
AT+CLCC
+CLCC: 1,1,4,0,0,"15695519173",161
OK
AT+CPAS
+CPAS: 3
OK
AT+CLCC
+CLCC: 1,0,0,0,0,"10010",129
OK
AT+CPAS
+CPAS: 4
OK

4.2. AT+CEER Extended Error Report

The command is used to query an extended error and report the cause of the last failed operation, such
as:

the failure to release a call

the failure to set up a call (both mobile originated or terminated)

the failure to modify a call by using supplementary services

the failure to activate, register, query, deactivate or deregister a supplementary service

the failure to attach GPRS or the failure to activate a PDP context

the failure to detach GPRS or the failure to deactivate a PDP context
The release cause <text> is a text to describe the cause information given by the network.
AT+CEER Extended Error Report
Test command
AT+CEER=?
Execution command
AT+CEER
EC25&EC21_AT_Commands_Manual
EC25&EC21 AT Commands Manual
//The module is ringing
//Call in progress
Response
OK
Response
+CEER: <text>
OK
ERROR
If error is related to ME functionality:
LTE Module Series
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