The modem supports a number of commands from the ITU-T V.250 recommendation. V.250 is an advanced command set, usually used only by applications. The table below lists supported V.250 commands.
| Command | Description |
|---|---|
| +ASTO | Store telephone number |
| +DR | Set data compression reporting |
| +DS | Configure V42bis data compression |
| +DS44 | Configure V44 data compression |
| +EB | Break handling configuration |
| +EFCS | Control Frame Check Sequence |
| +EFRAM | Set maximum link layer frame size |
| +ER | Set error control reporting |
| +ES | Select error control |
| +ESR | Set selective repeat |
| +ETBM | Set termination buffer management mode |
| +EWIND | Set link layer window size |
| +GCAP | Capabilities list |
| +GCI | Country identification |
| +GMI | Report manufacturer ID |
| +GMM | Report model ID |
| +GMR | Report revision number |
| +GOI | Report global object ID |
| +GSN | Report product serial number |
| +ICF | Set character framing format |
| +IDSR | Control Data Set Ready |
| +IFC | Set transmit/receive flow control |
| +ILRR | Enable local rate reporting |
| +ILSD | Configure long space disconnect |
| +IPR | Configure fixed port rate |
| +MA | Automoding control |
| +MR | Modulation reporting |
| +MS | Modulation selection |
| +MSC | V.34 seamless rate change |