Comtrol AT Commands for SmartACFL - Manual (Page 48)

Command Reference Manual
3-28 Conexant 100722A
3.2.3.8 M - Speaker Control
This command selects when the speaker will be on or off. The parameter value, if valid, is written to S22 bits 2 and 3.
Syntax
M<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Speaker is always off.
1 Speaker is on during call establishment, but off when receiving carrier. (Default.)
2 Speaker is always on.
3 Speaker is off when receiving carrier and during dialing, but on during answering.
Result Codes
OK <value> = 0 to 3.
ERROR Otherwise.
3.2.3.9 &G - Select Guard Tone
This command causes the modem to generate the guard tone selected by this command (DPSK modulation modes only).
The parameter value, if valid, is written to S23 bits 6 and 7.
Syntax
&G<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Disables guard tone. (Default.)
1 Disables guard tone.
2 Selects 1800 Hz guard tone.
This command may not be permitted in some countries.
Result Codes
OK <value> = 0 to 2.
ERROR Otherwise.