APPENDIX A
| Basic AT command for 2400, 9600 and 14,400 modem. |
Command | Function |
A/ | |
A | Go |
B0 | Select V.22 connection at 1200 bps. |
B1 | Select Bell 212A connection at 1200 bps. |
C1 | Return OK message. |
Dn | Dial modifier. |
E0 | Turn off command echo. |
E1 | Turn on command echo. |
F0 | Select |
F1 | Select V.21 or Bell 103. |
F2 | Reserved. |
F3 | Select V.23 line modulation. |
F4 | Select V.22 or Bell 212A 1200 bps line speed. |
F5 | Select V.22 bis line modulation. |
F6 | Select V.32 bis or V.32 4800 line modulation. |
F7 | Select V.32 bis 7200 line modulation. |
F8 | Select V.32 bis or V.32 9600 line modulation. |
F9 | Select V.32 bis 12000 line modulation. |
F10 | Select V.32 bis 14400 line modulation. |
H0 | Initiate a |
H1 | If |
I0 | Report product code. |
I1 | Report |
I2 | Compute checksum and report status. |
I3 | Report firmware revision, model, and interface type. |
I4 | Report response programmed by an OEM. |
I5 | Report the country code number. |
I6 | Report modem data pump model. |
L0 | Set low speaker volume. |
L1 | Set low speaker volume. |
L2 | Set medium speaker volume. |
L3 | Set high speaker volume. |
M0 | Turn speaker off. |
M1 | Turn speaker on during handshaking and turn speaker off while receiving carrier. |
M2 | Turn speaker on during handshaking and while receiving carrier. |
M3 | Turn speaker off during dialing and receiving carrier speaker on during answering. |
N0 | Turn off automode detection. |
N1 | Turn on automode detection. |
O0 | Go |
O1 | Go |
P | Force pulse dialing. |
Q0 | Allow result codes to DTE. |
Q1 | Inhibit result codes to DTE. |
Sn | Select S register as default. |
Sn? | Return the value of S register n. |
=v | Set default S register to value v. |
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