Specifications

Smart Machine Smart Decision
SIM900_AT Commands Manual_V1.07 49 2012.12.10
OK
If <mode>=2, TA activates the unsolicited reporting of CCM value
OK
ERROR
If error is related to ME functionality:
+CME ERROR: <err>
Parameters
<mode> 0 Query CCM value
1 Deactivate the unsolicited reporting of CCM value
2 Activate the unsolicited reporting of CCM value
<ccm> String type (string should be included in quotation marks);
three bytes of the current CCM value in hex-decimal format
(e.g. "00001E" indicates decimal value 30); bytes are
similarly coded as ACMmax value in the SIM
000000-FFFFFF
Reference
GSM 07.07 [13]
Note
3.2.4 AT+CBST Select Bearer Service Type
AT+CBST Select Bearer Service Type
Response
+CBST: (list of supported <speed>s),(list of supported <name>s),(list of
supported <ce>s)
OK
Test Command
AT+CBST=?
Parameters
See Write Command
Response
+CBST: <speed>,<name>,<ce>
OK
Read Command
AT+CBST?
Parameters
See Write Command
Write Command
AT+CBST=<spee
d>[,<name>[,<ce
>]]
Response
TA selects the bearer service <name> with data rate <speed>, and the
connection element <ce> to be used when data calls are originated.
OK
ERROR