Specifications

Chapter 9 – Supplementary Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 130
Parameter:
<n> This parameter can be stored with AT&W and can be displayed with AT&V.
0 Suppress unsolicited result code. Default. (This is the factory default value and can be restored
to '0' with AT&F. It is also the defaulted value if the parameter is omitted (0 will be assumed).)
1 Display unsolicited result code
<acm>
Three bytes of the current ACM value in hexadecimal format (e.g., “00001E” indicates decimal value 30) 000000-
FFFFFF
<acmMax> This parameter can be displayed with AT&V.
Three bytes of the max. ACM value in hexadecimal format (e.g., “00001E” indicates decimal value 30) 000000
disable ACMmax feature 000001-FFFFFF
<ccm>
Three bytes of the current CCM value in hexadecimal format (e.g., “00001E” indicates decimal value 30); bytes
are coded in the same way as ACMmax value in the SIM 000000-FFFFFF
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.
• This command is PIN protected.
• This command is supported in airplane mode.
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).
Syntax: Test Command: AT+CAMM=?
Response: OK
Read Command: AT+CAMM?
Response: +CAMM: <acmmax>
OK
ERROR
+CME ERROR: <err>
Write Command: AT+CAMM=[<acmmax>[, <passwd>]]
Response: OK
ERROR
+CME ERROR: <err>
Parameter:
<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
Notes:
• This command is PIN protected. This command is available after PIN2 authentication. See +CPIN2.
• This command is supported in airplane mode.