Siemens M1 User Manual
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gsm-m1-e.fm
GSM M1 Module, English: A24859-N4000-A100-1-7677
Technical reference section
26.2.96
Example:
Enter:
AT+CREG?
GSM module:
+CME ERROR: 10
Possible error messages in response to an AT+C command
0
Phone failure
1
No connection to phone (transceiver part of M1)
2
Transceiver-adaptor link reserved
3
Operation not allowed
4
Operation not supported
5
PH-SIM PIN required
10
SIM not inserted
11
SIM PIN required
12
SIM PUK required
13
SIM failure
14
SIM busy
15
SIM wrong
16
Incorrect password
20
Memory full
21
Invalid index
22
Not found
23
Memory failure
24
Text string too long(+CPBW)
25
Invalid characters in text string
26
Dial string too long
27
Invalid characters in dial string
30
No network service
31
Network timeout
100
Unknown