Specifications
Chapter 9 – Supplementary Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 131
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.
Syntax: Test Command: AT+CAOC=?
Response: +CAOC: (list of supported<mode>s)
OK
Read Command: AT+CAOC?
Response: +CAOC: <mode>
OK
Exec Command: AT+CAOC
Response: ERROR
+CME ERROR: <err>
If <mode>=0, TA returns the current call meter value:
+CAOC: <ccm>
OK
Write Command: AT+CAOC=[<mode>].
Response: ERROR
+CME ERROR: <err>
If <mode>=0, TA returns the current call meter value.
OK
Parameter:
<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.
Notes:
• This command is PIN protected.
• This command is supported in airplane mode.