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Appendix D - AT Command Summary
Command Values Description
932 Series:
$MB75 selects CCITT V.23 mode.
$MB300 selects 300 bps on-line.
$MB1200 selects 1200 bps on-line.
$MB2400 selects 2400 bps on-line.
$MB4800 selects 4800 bps on-line.
* $MB9600 selects 9600 bps on-line.
&Mn n = 0 or 1 * &M0 selects Async when on-line.
&M1 selects Sync when on-line.
Nd d = 0 thru 9 Dial stored telephone number “d” (Do not include the
letter D in this command.)
NdNe d = 0 thru 9 Number Linking. If first number dialed is
e = any other busy, another stored number may be
number 0 automatically dialed. In example, stored
thru 9 number d is dialed, and if busy, stored
number e is dialed.
O Exit Command Mode and go into On-Line Mode.
P * Modem will pulse-dial numbers following the P.
&Pn n = 0 or 1 * &P0 means 60-40 pulse ratio.
&P1 means 67-33 pulse ratio.
Qn n = 0, 1 or 2 * Q0 means Result Codes sent.
Q1 means Result Codes will be suppressed (quiet).
Q2 means Dumb Answer Mode.
&Qn n = 0 or 1 * &Q0 selects Multi-Tech command set.
&Q1 selects AT command set.
Rn n = 0 or 1 * R0 means modem will not reverse modes.
R1 means modem will reverse modes.
&Rn n = 0, 1 or 2 &R0 lets Clear to Send act normally.
* &R1 forces Clear to Send on.
&R2 drops for 1 second on disconnect.
&RP (2834 Series only) Command Initiates a Retrain that makes the
processor read Line Probe Information (valid only in
V.34 mode).
$Rn n = 0 or 1 * $R0 means disconnect after 12 retransmits.
$R1 means do not disconnect after 12 retransmits.
&RFn n = 0 or 1 &RF0 selects CTS follows RTS.
* &RF1 selects CTS to act independently
Sr=n r = 0-11, 13, Sets value of Register “r” to value of “n”,
15-19, 24-26, where “n” is entered in Decimal format.
29, 30, 32, 34...
* Factory Default Setting