Specifications

Chapter 9 – Supplementary Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 108
Unsolicited Result Code:
+CCCM: <ccm> When activated, an unsolicited result code is sent when the CCM value changes, but
not more often than every 10 seconds.
Notes:
• When you power down or reset the ME with AT+CFUN=1,1 the URC presentation mode will be reset to its
default. To benefit from the URC it is recommended to have the setting included in the user profile saved with
AT&W, or to select <n>=1 every time you reboot the ME.
• See also AT+CACM, AT+CAMM, AT+CAOC.
9.3 AT+CAMM Accumulated Call Meter Maximum
(ACMmax) Set or Query
Description: The read command returns the current ACMmax value. ACMmax contains the maximum
number of home units allowed to be consumed by the subscriber.
The write command sets the Advice of Charge related to the accumulated call meter
maximum value in SIM file EF (ACMmax).
Test Command Syntax: AT+CAMM=?
Response: OK
Read Command Syntax: AT+CAMM?
Response: +CAMM: <acmmax>
OK
ERROR
+CME ERROR: <err>
Write Command Syntax: AT+CAMM=[<acmmax>[, <passwd>]]
Response: OK
ERROR
+CME ERROR: <err>
Parameter Descriptions:
<acmmax>
Three bytes of the max. ACM value in hexadecimal format (e.g., “00001E” indicates decimal value 30) 000000
disable ACMmax feature 000001-FFFFFF.
<passwd>
SIM PIN2
9.4 AT+CAOC Advice of Charge Information
Description: The Execute command returns the current call meter value. The write command sets
the Advice of Charge supplementary service function mode.
Test Command Syntax: AT+CAOC=?
Response: +CAOC: (list of supported<mode>s)
OK
Read Command Syntax: AT+CAOC?
Response: +CAOC: <mode>
OK
Exec Command Syntax: AT+CAOC
Response: ERROR
+CME ERROR: <err>
If <mode>=0, TA returns the current call meter value:
+CAOC: <ccm>
OK
Write Command Syntax: AT+CAOC=[<mode>].
Response: ERROR
+CME ERROR: <err>
If <mode>=0, TA returns the current call meter value.
OK
Parameter Descriptions:
<mode>
0 query CCM value
<ccm>
Three bytes of the current CCM value in hexadecimal format (e.g., “00001E” indicates decimal value 30); bytes
are similarly coded as ACMmax value in the SIM 000000-FFFFFF.