Synxcom SM9234D, Руководство пользователя

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AT Commands
Page 74
O - Return to On-Line Data Mode
This command determines how the modem will enter the on-line data mode. If in
the on-line command mode, the modem enters the on-line data mode with or
without a retrain. If in the off-line command mode (no connection), the modem
reports ERROR.
Syntax O<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Enters on-line data mode without a retrain. Handling is
determined by the Call Establishment task. Generally,
if a connection exists, this command connects the DTE
back to the remote modem after an escape (+++).
1 Enters on-line data mode with a retrain before
returning to on-line data mode.
2 Fast retrain without speed change (used for diagnostic
purpose only).
3 Renegotiate rate without speed change (used for
diagnostic purpose only.
4 Renegotiate rate down one speed (used for diagnostic
purpose only).
5 Renegotiate rate up one speed (used for diagnostic
purpose only).
Result Codes
OK <value> = 0 to 5 and a connection exists.
ERROR Otherwise or if not connected.
L - Speaker Volume
This command sets the speaker volume control. The parameter value, if valid, is
written to S22, bits 0 and 1.
Syntax L<value>
Defined Values
<value> Decimal number corresponding to the selected option.
0 Low volume.
1 Low volume. (Default.)
2 Medium volume.
3 High volume.
Result Codes
OK <value> = 0 to 3.
ERROR Otherwise.
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.