Specifications

HE863 family AT commands reference guide

80377ST10083a Rev.4 – 2012-02-01

+CMUT - Microphone Mute Control

0 - mute off, microphone active (factory default)

1 - mute on, microphone muted.

Note: this command is only available during voice call

Note: this command mutes/activates both microphone audio paths, internal mic and

external mic.

AT+CMUT?

Read command reports whether the muting of the microphone audio line during a

voice call is enabled or not, in the format:

+CMUT: <n>

AT+CMUT=?

Test command reports the supported values for <n> parameter.

Reference 3GPP TS 27.007

3.5.3.4.16. Accumulated Call Meter - +CACM

+CACM - Accumulated Call Meter

AT+CACM=

[<pwd>]

Set command resets the Advice of Charge related Accumulated Call Meter stored in

SIM (ACM): it contains the total number of home units for both the current and

preceding calls.

Parameter:

<pwd> - to access this command PIN2; if PIN2 has been already input once after

startup, it is required no more

AT+CACM?

Read command reports the current value of the SIM ACM in the format:

+CACM: <acm>

where:

<acm> - accumulated call meter in home units, string type: three bytes of the

ACM value in hexadecimal format (e.g. “00001E” indicates decimal

value 30)

Note: the value <acm> is in home units; price per unit and currency are defined

with command +CPUC

AT+CACM=?

Test command returns the OK result code

Reference 3GPP TS 27.007

3.5.3.4.17. Accumulated Call Meter Maximum - +CAMM

+CAMM - Accumulated Call Meter Maximum

AT+CAMM=

[<acmmax>

[,<pwd>]]

Set command sets the Advice of Charge related Accumulated Call Meter Maximum

Value stored in SIM (ACMmax). This value represents the maximum number of

home units allowed to be consumed by the subscriber. When ACM reaches

<acmmax> value further calls are prohibited.

Parameter: