> 9.3 | AT+CAMM Accumulated call meter maximum (ACMmax) set or query

> Syntax

> Test Command AT+CAMM=?
> Response(s)
> OK

> Read Command AT+CAMM?
> Response(s)
> +CAMM: <acmmax>
> OK
> ERROR
> +CME ERROR: <err>

> Write Command AT+CAMM=<acmmax>[, <passwd>]
> Response(s)
> OK
> ERROR
> +CME ERROR: <err>

> Reference(s) |  | PIN |  | ASC0 | ASC1 | USB | MUX1 | MUX2 | MUX3 |  |  | Charge | Q | Last
> GSM 07.07 |  | + |  | + | + | + | + | + | + |  |  | - | + | -

> Command Description
> The read command returns the current ACMmax value.
> The write command sets the Advice of Charge related to the accumulated call meter maximum value in SIM file EF (ACMmax). ACMmax contains the maximum number of home units allowed to be consumed by the subscriber.
> Parameter Description

> <acmmax>(str)

> Three bytes of the max. ACM value in hexadecimal format (e.g. "00001E" indicates decimal value 30) 000000 disable ACMmax feature 000001-FFFFFF.

> <passwd>(str)

> SIM PIN2