User's Manual

&Kn DTE/Modem Flow Control
Determines how the modem controls the flow of data between the local DTE and the modem. When the
modem terminal buffer is nearly full, the modem will either send an XOFF or drop CTS to stop the data
flow. When the buffer is nearly empty, the modem will either send an XON or raise CTS to start the data
flow.
&K0 Disable DTE/DCE flow control.
&K3 Enable RTS/CTS DTE/DCE flow control. (Default)
&K4 Enables XON/XOFF DTE/DCE flow control.
&K5 Enables transparent XON/XOFF DTE/DCE flow control.
&K6 Enable RTS/CTS and XON/XOFF DTE/DCE flow control.
&Mn Communication Mode
(Same as &Q0)
&Pn Select Pulse Dialing Make/Break Ratio
&P0/&P Sets a 39/61 make/break ratio @ 10 pps - used in USA. (Default)
&P1 Sets a 33/67 make/break ratio @ 10 pps.
&P2 Sets a 39/61 make/break ratio @ 20 pps.
&P3 Sets a 33/67 make/break ratio @ 20 pps.
&Qn Asynchronous Mode Selection
This command is an extension of the &M command and is used to control the connection modes permitted.
It is used in conjunction with S36 and S48.
&Q0 Select direct asynchronous operation. The value 000b is written to S27 bits 3, 1, and 0
respectively.
&Q5 The modem will try to negotiate an error-corrected link. The modem can be configured
using S36 to determine whether a failure will result in the modem returning on-hook or
will result in fallback to an asynchronous connection. The value 101b is written to S27
bits 3, 1, and 0 respectively. (Default)
&Q6 Select asynchronous operation in normal mode (speed buffering). The value 110b is
written to S27 bits 3, 1, and 0 respectively.
&Sn DSR Option
Determines whether DSR operates in accordance with the EIA-232-D specification or remains ON
&S0 DSR is always ON. (Default)
&S1 DSR will become active after answer tone has been detected and inactive after the carrier
has been lost.