L Loudspeaker volume
ATL0,1 Low volume
ATL2 Medium volume
ATL3 High volume
M Loudspeaker mode
ATM0 Loudspeaker always on
ATM1 Loudspeaker on until data carrier signal is detected
ATM2 Loudspeaker on when the modem is ready to dial
ATM3 Loudspeaker off while the number is being dialed and then, after dialing, until a
data carrier signal is detected
+MS Selects the modulation type
This command sets the modulation type and the bit rates negotiated between the local
and remote modems.
Syntax: +MS=[<carrier>[,
<auto-
mode>[,<min_tx_rate>[,<max_tx_rate>[,<min_rx_rate>[,<max_rx_rate>]]]]]
Example: AT+MS= V34,1,9600,33600,9600,33600
Automode 0=disabled
1=enabled (default)
AT+MS? Shows the current setting
\N Selects the error correction settings
AT\N0 Error correction switched off
AT\N1 Transparent transmission of any data widths via the serial interface, without data
buffering and error correction.
AT\N2 V.42LAP-M or MNP 4 error correction. The modem hangs up if a failsafe con-
nection cannot be established.
AT\N3 V.42LAP-M or MNP 4 error correction. A non-failsafe connection will be at-
tempted if a failsafe connection cannot be established.
AT\N4 V.42LAP-M error correction; the modem hangs up if this is not possible.
AT\N5 MNP error correction; the modem hangs up if this is not possible.
2400, 4800, 7200, 9600, 12000, 14400, 16800,
19200, 21600, 24000, 26400, 28800, 31200, 33600
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