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Hn – Disconnect (Hang-Up)
This command initiates a hang up sequence.
H0 The modem will release the line if the modem is currently on-line. Country
specific, modulation specific, and error correction protocol specific (S38)
processing is handled outside of the H0 command.
H1 If on-hook, the modem will go off-hook and enter command mode.For EU models,
the modem will return on-hook after a period of time determined by S7.
\Kn – Break Control
Controls the response of the modem to a break received from the DTE or the remote
modem or the \B command according to the parameter supplied. The parameter value, if
valid, is written to S40 bits 3, 4, and 5.
The response is different in three separate states.
The first state is where the modem receives a break from the DTE when the modem is
operating in data transfer mode:
\K0 Enter on-line command mode, no break sent to the remote modem.
\K1 Clear data buffers and send break to remote modem.
\K2 Same as 0.
\K3 Send break to remote modem immediately.
\K4 Same as 0.
\K5 Send break to remote modem in sequence with transmitted data. (
Default
)
The second case is where the modem is in the on-line command state
(waiting for AT commands) during a data connection,
and the \B is received in order to send a break to the remote modem:
\K0 Clear data buffers and send break to remote modem.
\K1 Clear data buffers and send break to remote modem. (Same as 0.)
\K2 Send break to remote modem immediately.
\K3 Send break to remote modem immediately. (Same as 2.)
\K4 Send break to remote modem in sequence with data.
\K5 Send break to remote modem in sequence with data. (Same as 4.) (
Default
)
The third case is where a break is received from a remote modem during a non-error
corrected connection:
\K0 Clears data buffers and sends break to the DTE.
\K1 Clears data buffers and sends break to the DTE. (Same as 0.)
\K2 Send a break immediately to DTE.
\K3 Send a break immediately to DTE. (Same as 2.)
\K4 Send a break in sequence with received data to DTE.
\K5 Send a break in sequence with received data to DTE. (Same as 4.) (
Default
)
&K – Flow Control
Defines the DTE/DCE Flow Control. The parameter is written to S39 bits 0,1, and 2.
&K0 Disables flow control (
Default
).
&K3 Enables RTS/CTS.
&K4 Enables XON/XOFF.
&K5 Enables transparent XON/XOFF.
