User Manual

GM47/GM48 INTEGRATOR’S MANUAL
286
LZT 123 7263 R1A
19.3 AT+CAMM Accumulated Call Meter Maximum
Sets the Advice of Charge related accumulated call meter maximum
value in SIM file EFACMmax. ACMmax contains the maximum
number of home units allowed to be consumed by the subscriber. When
ACM (refer +CACM) reaches ACMmax calls are prohibited (see also
GSM 02.24 [26]). SIM PIN2 is usually required to set the value. If
setting fails in an ME error, +CME ERROR: <err> is returned.
Read command returns the current value of ACMmax.
Description Command Possible Responses
Set command sets the
Advice of Charge
related accumulated
call meter maximum
value in SIM file
EF
ACMmax
AT+CAMM=[<acmmax
>[,<passwd>]]
•+CMEERROR:<err>
•OK
•ERROR
Read the current value AT+CAMM? •+CAMM:
<acmmax>
+CME ERROR: <err>
•OK
•ERROR
Test if the command if
supported
AT+CAMM=? •+CMEERROR:<err>
•OK
•ERROR
<acmmax> Description
String type Accumulated call meter maximum value similarly coded
as <ccm> under +CAOC; value zero disables ACMmax
feature
<passwd> Description
String type SIM PIN2