Siemens MC55 AT Supplementary Service Commands, AT+CACM Accumulated call meter ACM reset or query

9.Supplementary Service Commands

The AT Commands described in this chapter are related to the Supplementary Services offered by the GSM net- work.

9.1AT+CACM Accumulated call meter (ACM) reset or query

Syntax

Test Command

AT+CACM=?

Response(s)

OK

Read Command

AT+CACM?

Response(s)

+CACM: <acm>

OK ERROR

+CME ERROR: <err>

Write Command

AT+CACM=[<passwd>]

Response(s)

OK ERROR

+CME ERROR: <err>

Reference(s)

GSM 07.07

PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last

% % % % % % ! ! !

Command Description

The read command returns the current ACM value.

The write command resets the Advice of Charge related to the 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.

Parameter Description

<acm>(str)

Three bytes of the current ACM value in hexadecimal format (e.g. "00001E" indicates decimal value 30) 000000 - FFFFFF.

<passwd>(str)

SIM PIN2

MC55_ATC_V04.00	Page 191 of 475	3/17/06
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