Handset noise reduction #shsnr, Syntax, Parameters and values – Synaccess Networks NP-0801DTM User Manual
Page 320: Notes, Embedded dtmf decoder, Embedded dtmf decoder enabling #dtmf

AUDIO COMMANDS
HSPA+ AT Commands Reference Guide
320
Handset Noise Reduction #SHSNR
Set command enables or disables the noise reduction function on audio handset input.
Read command reports whether the noise reduction function on audio handset input is currently enabled or not,
in the format:
# SHSNR:
Test command returns the supported range of values for
Syntax
Command
Command type
AT# SHSNR =
Set
AT# SHSNR?
Read
AT# SHSNR =?
Test
Parameters and Values
0
Disables noise reduction for handset mode. Default: 0.
1
Enables noise reduction for handset mode.
Notes
To save the value of
Embedded DTMF Decoder
Embedded DTMF Decoder Enabling #DTMF
Set command enables or disables the embedded DTMF decoder.
Read command reports the currently selected
#DTMF:
Test command reports supported range of values for all parameters.
Syntax
Command
Command type
AT#DTMF=
Set
AT#DTMF?
Read
AT#DTMF =?
Test
Parameters and Values
0
Disable DTMF decoder. Default: 0.
1
Enables DTMF decoder.
2
Enables DTMF decoder without URC notify.