At Commands Originating From Gsm 07.07; At+Cacm Accumulated Call Meter (Acm) Reset Or Query - Siemens TC37 Module At Command Reference

AT Command Set

4 AT Commands originating from GSM 07.07

These AT Commands are according to ETSI (European Telecommunications Standards Institute)
GSM 07.07 document.

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

Test command Response
OK
AT+CACM=?
Parameter
Read command Response
AT+CACM? TA returns the current ACM value.
+CACM: <acm> OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<acm>
Write command Parameter
<passwd> string type:
AT+CACM=
[<passwd>]
Response
TA 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 both
for the current and preceding calls.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Reference
GSM 07.07
TC3X_ATC_01_V04.00
string type; three bytes of the current ACM value in hexadecimal
format (e.g. "00001E" indicates decimal value 30) 000000 – FFFFFF
SIM PIN2
Page 57 of 204 29.05.2002