Examples, Teletype writer #tty, Syntax – Synaccess Networks NP-0801DTM User Manual
Page 324: Parameters and values, Notes

AUDIO COMMANDS
HSPA+ AT Commands Reference Guide
324
Examples
AT#SPCM=1,0,0
CONNECT
+++
NO CARRIER
Note: After CONNECT, 8Khz 8bit PCM stream has to be sent to serial port
AT#SPCM=2,0,0
CONNECT
+++
NO CARRIER
Note: After CONNECT, 8Khz 8bit PCM stream can be read from serial port.
TeleType Writer #TTY
Set command enables or disables the TTY feature.
Read command returns whether the TTY function is currently enabled or not, in the format:
#TTY:
Test command reports the supported range of values for
Syntax
Command
Command type
AT#TTY=
Set
AT#TTY?
Read
AT#TTY=?
Test
Parameters and Values
0
Disable TTY function Default: 0.
1
Enable TTY function.
Notes
The value set by this command is directly stored in non‐volatile memory and does not depend on the specific AT
instance.