| I5 | Modem chip hardware configuration |
| I6 | Country code |
| I7 | Board manufacturer firmware version |
| I8 | Modem firmware version |
| I10 | Modem board configuration |
L_ | L0 | Low speaker volume |
| L1 | Low speaker volume |
| L2 | Medium speaker volume |
| L3 | High speaker volume |
M _ | M0 | Internal speaker off |
| M 1 | Internal speaker on until carrier |
|
| detected |
| M2 | Internal speaker always on |
| M3 | Internal speaker on until carrier detected |
|
| and off while dialing |
N_ | N0 | Connect only at DTE rate |
| N1 | Automatic rate negotiation |
O_ | O0 | Return to Data Mode |
| O1 | Return to Data Mode and initiate an |
|
| equalizer retrain |
| O3 | Renegotiates rate and then returns to |
|
| data mode |
PSet Pulse dial as default
Q_ | Q0 | Modem sends responses |
| Q1 | Modem does not send responses |
Sn? | Read and display value in register n | |
Sn=x |
| Set register n |
TSet Tone Dial as default
V_ | V0 | Numeric responses |
| |
| V1 | Word responses |
| |
W_ | W0 | Modem | reports | DTE response |
|
| codes |
|
|
| W1 | Modem reports DTE response codes | ||
| W2 | Modem reports DCE response codes | ||
| W3 | Modem reports DTE speed, modulation | ||
|
| mode, error control, data compression, | ||
|
| DCE transmit and receive speed | ||
| W4 | Modem | reports | protocol, data |
|
| compression and DTE data rate | ||
X_ | X0 | Hayes Smartmodem 300 compatible | ||
|
| responses/blind dialing | ||
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