User's Manual

GM29 INTEGRATOR’S MANUAL
236
LZT 123 7361 R1A
16.3 AT+CAMM Accumulated Call Meter Maximum
Sets the Advice of Charge related accumulated call meter maximum
value in SIM file EF
ACMmax
. ACMmax contains the maximum number
of home units allowed to be consumed by the subscriber. When ACM
(refer +CACM) reaches ACMmax calls are prohibited. 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>]]
•+CME ERROR: <err>
•OK
•ERROR
Read the current
value
AT+CAMM? • +CAMM:
<acmmax>
+CME ERROR: <err>
•OK
•ERROR
Test if the command if
supported
AT+CAMM=? •+CME ERROR: <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