Specifications

SIM900 AT Commands Set
SIM900_ATC_V1.01 93 23.06.2010
3.2.53 AT+CMUT Mute Control
AT+CMUT Mute Control
Response
+CMUT: (list of supported <n>s)
OK
Test Command
AT+CMUT=?
Parameter
see Write Command
Response
+CMUT: <n>
OK
+CME ERROR: <err>
Read Command
AT+CMUT?
Parameter
See Write Command
Response
OK
+CME ERROR: <err>
Write Command
AT+CMUT=<n>
Parameter
<n> 0 mute off
1 mute on
Reference
GSM 07.07 [13]
Note
Only during a call this command can be set successfully.
3.2.54 AT+CPUC Price Per Unit and Currency Table
AT+CPUC Price Per Unit and Currency Table
Response
OK
Test Command
AT+CPUC=?
Parameters
see Write Command
Response
+CPUC: <currency>,<ppu>
OK
+CME ERROR: <err>
Read Command
AT+CPUC?
Parameters
See Write Command
Write Command
AT+CPUC=<cur
Response
OK