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SIM900 AT Command Manual

SIM900_AT Command Manual_V1.03 47 12/24/2010

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)

Test Command

AT+CBST=?

Parameters

See Write Command

Response

+CBST: <speed>,<name>,<ce>

Read Command

AT+CBST?

Parameters

See Write Command

Response

TA selects the bearer service <name> with data rate <speed>, and the

connection element <ce> to be used when data calls are originated.

ERROR

Write Command

AT+CBST=<spee

d>[,<name>[,<ce

>]]

Parameters

<speed> 0 Auto-bauding (automatic selection of the speed; this

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