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AT Command Set - Olitec

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4 <strong>AT</strong> <strong>Command</strong>s originating from GSM 07.07These <strong>AT</strong> <strong>Command</strong>s are according to ETSI (European Telecommunications Standards Institute)GSM 07.07 document.4.1 <strong>AT</strong>+CACM Accumulated call meter (ACM) reset or queryTest command<strong>AT</strong>+CACM=?ResponseOKParameterRead command<strong>AT</strong>+CACM?ResponseTA returns the current ACM value.+CACM: OKIf error is related to ME functionality:+CME ERROR: Parameterstring type; three bytes of the current ACM value in hexadecimal format(e.g. “00001E” indicates decimal value 30) 000000 – FFFFFFWrite command<strong>AT</strong>+CACM=[]Parameter string type:SIM PIN2ResponseTA 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 bothfor the current and preceding calls.OKIf error is related to ME functionality:+CME ERROR: ReferenceGSM 07.07Page 61 of 207

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