User guide

Developers guidelines | AT commands
117 June 2010
AT+CACM Accumulated call meter (ver. 2)
AT+CAMM Accumulated call meter maximum
<mode> Description
0 Query CCM value. Default value
1 Deactivate the unsolicited reporting of CCM value
2 Activate the unsolicited reporting of CCM value
<ccm>:
<ccm> Description
String type Three bytes of the current call meter value in
hexadecimal format. For example, “00001E”
indicates decimal value 30. The value is in home
units and bytes are similarly coded as the ACMmax
value in the SIM
Description: 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. SIM PIN2 is usually required to reset the
value.
Note: This command must take into account what line is chosen via the
MMI.
Read command returns the current value of ACM.
Set command: AT+CACM=[<passwd>]
Read command: AT+CACM?
Read command
response: +CACM: <acm>
Test command: AT+CACM=? Shows if the command is supported.
Parameters:
<passwd>:
<passwd> Description
String type SIM – PIN2
<acm>:
<acm> Description
String type Accumulated call meter value. Similarly coded as
<ccm> under AT+CAOC
Description: Sets the maximum Advice-of-Charge related Accumulated Call Meter
(ACM) value in the SIM file EF
ACMmax
. ACMmax contains the maximum
number of home units allowed to be consumed by the subscriber. When
ACM (see AT+CACM) reaches ACMmax, calls are prohibited (see also
3GPP 22.024). SIM PIN2 is usually required to set the value.
Set command: AT+CACM=[<acmmax>[,<passwd>]]