66 | AT Commands |
AT command formats |
&Dn Data Terminal Ready (DTR) control
This command interprets how the modem responds to the state of the DTR signal and changes to the DTR signal.
&D0 | Ignore. The modem ignores the true status of |
| DTR and treats it as always on. This should |
| only be used if your communication software |
| does not provide DTR to the modem. |
&D1 | If the DTR signal is not detected while in online |
| data mode, the modem enters command mode, |
| issues an OK result code, and remains |
| connected. |
&D2 | If the DTR signal is not detected while in online |
| data mode, the modem disconnects (default). |
&D3 | Reset the modem on the |
| transition. |
Result Codes:
OK n=0,1,2,3
ERROR Otherwise
&F Load factory settings
This command loads the configuration stored and programmed at the factory. This operation replaces all of the command options and the
&F | Recall factory setting as active configuration. |