Appendix A – Result Codes, Failure Causes, Other Tables
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
175
Continued: Specific Error Result Codes
<error> Meaning
Results from the following commands
544
CMUX connection Timeout (no answer from the remote); i.e., no
DLCO opened response.
+CMUX
545
A CMUX session has been started on a physical UART, and the
user tries to start another CMUX session on another physical
UART. The error, +CME ERROR: 545 is raised on the UART
where AT+CMUX command is trying to be started again.
+CMUX
546
Emergency call is not allowed without SIM
+COPS
547
Emergency call is allowed without SIM
+COPS
548
No flash objects to delete
+WOPEN
549
The phone number of the requested phonebook entry is empty
ATD><index>[;],ATD><phonebook><index>[;]
550
Unable to resize the Application & Data storage place since the
new required size would overlap with the current Open AT
®
application storage place
+WOPEN
551
Service abort request has failed
AT+WAC
552
Unsolicited responses for autodiag or charge indication are
already activated on another port
+WDIAG, +WBCM