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LZT 123 7468 R1A
16. Supplementary Services
16.1 AT+CPIN
PIN Control
See 3.23, AT+CPIN PIN Control
16.2 AT+CACM Accumulated Call Meter
Resets the Advice of Charge related accumulated call meter value in
SIM file EF
ACM
. ACM contains the total number of home units for both
the current and preceding calls. SIM PIN2 is usually required to reset
the value. If setting fails in an ME error, +CME ERROR: <err> is
returned. See “+CME ERROR (Mobile Equipment Error Code)”, page
59.
Note!
This command must take into account what line is chosen with
AT*ELIN.
Read command returns the current value of ACM.
Description
Command
Possible Responses
Reset the ACM
(Accumulated Call
Meter) value on the
SIM
AT+CACM=[<passwd>]
• +CME ERROR: <err>
• OK
• ERROR
Show the current value
AT+CACM?
• +CACM: <acm>
+CME ERROR: <err>
• OK
• ERROR
Tests if the command is
supported
AT+CACM=?
• +CME ERROR: <err>
• OK
• ERROR
<passwd>
Description
String type
SIM-PIN2
<acm>
Description
String type
Accumulated call meter value similarly coded as <ccm>
under +CAOC
Содержание GM28
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