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SIM800 Series_AT Command Manual_V1.09

2015-08-03

three bytes of the current ACM value in hexa-decimal format (e.g.

"00001E" indicates decimal value 30)

000000 – FFFFFF

Response

TA resets the Advice of Charge related accumulated call meter (ACM)

value in SIM file EF (ACM). ACM contains the total number of home

units for both the current and preceding calls.

If error is related to ME functionality:

+CME ERROR: <err>

Write Command

AT+CACM=<pa

sswd>

Parameters

String type (string should be included in quotation marks):

SIM PIN2

Parameter Saving

Mode

NO_SAVE

Max

Response

Time

Reference

3GPP TS 27.007

[13]

Note

3.2.2 AT+CAMM

Accumulated Call Meter Maximum (ACM max) Set or Query

AT+CAMM

Accumulated Call Meter Maximum(ACM max) Set or Query

Test Command

AT+CAMM=?

Response

TA returns the current value of ACM max.

+CAMM: <acmmax>

If error is related to ME functionality:

+CME ERROR: <err>

Read Command

AT+CAMM?

Parameters

See Write Command

Write Command

AT+CAMM=<ac

mmax>[,<passwd

Response

TA sets the Advice of Charge related accumulated call meter maximum

value in SIM file EF (ACM max). ACM max contains the maximum

number of home units allowed to be consumed by the subscriber.

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

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