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Command
AT&Cn
Selects data compression for MNP or V.42, where n is a digit from 0 to 3. For data compression to work, both the local and the remote
modem must have compression capabilities. The n parameters are:
- Compression is not authorized.
0
- Auto enable/disable.
1
- Data compression enabled.
2
- MNP5 compression disabled.
3
AT&Dn
This command controls the way that your modem responds to the Data Terminal Ready (DTR) signal:
- Ignores DTR signal.
0
1- Modem interprets an ON-to-OFF transition as escape characters and moves to Command Mode, while keeping data connection.
- An ON-to-OFF DTR transition causes the modem to hang up and disables auto-answer.
2
- An ON-to-OFF DTR transition resets the modem to hang up and disables auto-answer.
3
AT&F
Modem returns to factory default settings.
AT&Kn
This command controls the flow control:
- Disables flow control.
0
1 - Enables RTS/CTS (hardware) flow control (default).
- Enables XON/XOFF (software) flow control.
2
Description
Appendix AT Commands
Basic AT Commands
72
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