Siemens MC55 - Manual (Page 219)

MC55 AT Command Set
9.4 AT+CAOC
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MC55_ATC_V01.05 Page 219 of 469 2/10/04
Confidential / Released
The write command sets the Advice of Charge supplementary service function mode.
Parameter Description
0 query CCM value
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.
<mode>
(num)(&V)
<ccm>
(str)