  U.S. Robotics HST 14,400 V.42/V.42bis
       Modem Command Sequences

  Any  Terminate current dialing operation resulting
  Key  from issued dial command; exit repeat Mode.

  A    Force Answer Mode when modem hasn't
       received an incoming call.
  A/   Re-execute last command once.
  A>   Repeat last command continuously.
  AT   Attention: must precede all other commands.
       except A/, A>, and +++.
  Bn   Handshake options.
       B0 V.32 mode; CCITT answer sequence
       B1 HST  mode; Bell answer tone
  Cn   Transmitter enabled/disabled.
       C0 Transmitter disabled
       C1 Transmitter enabled-default
  Dn   Dial the number that follows and go into origi-
       nate Mode.  Use any of the following options:
       P Pulse dial (Default)
       T Touch-Tone dial
       , (Comma) pause for 2 seconds
       ;  Return to command state after dialing
       ".. Dial the letters that follow
       !  Flash switch hook to transfer call
       W  Wait for second dial tone (if X3 or higher set)
  DSn  Dial number stored in NRAM at position n
  En   Command mode local echo:  display copy of modem
       commands entered at the keyboard.  See DIP 4.
  Fn   Local echo ON/OFF Once a connection has
        been established.
        F0 Echo ON (Half duplex)
        F1 Echo OFF (Full duplex)-Default
  Hn    On/off hook control.
        H0 hangup (go on hook)-Default
        H1 Go off hook
  In    Inquiry.
        I0 Return product code
        I1 Return memory (ROM) checksum
        I2 Run memory (RAM) test
        I3 Return call duration/real time
        I4 Return current modem settings
        I5 Return NRAM settings
        I6 Return link diagnostics
        I7 Return product configuration
  Kn    Modem clock operation.
        K0 At ATI3, display call duration (Default)
        K1 At ATI3, display real time; set clock with
              ATI3 =  HH:MM:SSK1
  Ln    Speaker volume level control.
        L0 Low
        L1 Low
        L2 Medium-Default
        L3 High
  Mn    Monitor (speaker) control.
        M0 Speaker always off
        M1 Speaker on until carrier is established
           (Default)
        M2 Speaker always on
        M3 Speaker on after last digit dialed.  OFF at
           carrier detect
  O     Return online after command execution.
  P     Pulse dial.
  Qn    Quiet Mode:  result codes displayed/
        suppressed.  See Dip switch 3.
        Q0 Result codes displayed
        Q1 Result codes suppressed
  Sr=n  Set Register command: r is any S-register;
        n is between 0 and 255.
  Sr.b=n  Set bit-mapped register optional command:  r is
        the register, b is the bit (0 to 7) and n is 0 (off)
        or 1 (on).
  Sr?   Query register r
  T     Tone dial.
  Vn    Verbal/Numeric result codes.  See DIP switch 2.
        V0 Numeric Mode
        V1 Verbal Mode
  Xn    Result code options.  Use the Options Table on
        this reference card.  Default is Extended set.
        codes 0-5, 10, 13, 18.
  Z     Software reset.  See DIP switch 10.
  +++   Escape code sequence,  preceded and followed
        by at least one second of no data transmission.
        See DIP switch 9.
  /     (Slash) pause for 125 msec.
  >     Repeat command continuously or up to 10 dial
        attempts.  (Cancel by pressing any key).
  $     Help basic command summary
  &$    Help Extended command summary
  D$    Help Dial command summary.
  S$    Help S-register summary.
  &An   Additional result code subsets.
        &A0 Suppress/ARQ result codes
        &A1 Display/ARQ result codes-Default
        &A2 Display HST and V.32 result codes
  &Bn   Data rate DTE/DCE.
        &B0 DTE rate follows connection rate.  Default.
        &B1 Fixed DTE rate
  &Cn   Carrier detect (CD) operations. See DIP switch 1.
        &C0 CD override always on
        &C1 CD when carrier is present
  &Dn   Data Terminal Ready (DTR) operations.  See DIP
        switch 1.
        &D0 DTR override (DTR always on)
        &D2 Modem accepts commands on DTR, dropping
            dropping DTR terminates call
  &F    Load factory settings into random access
        memory (RAM).
  &Cn   Guard tone.
        &G0 No guard tone.  US, Canada Default
        &G1 Guard tone, some European countries
        &G2 Guard tone, U.K; reguires B0
  &Hn   Transmit Data flow control.
        &H0 Flow control disabled-Default
        &H1 Hardware (CTS/RTS) flow control
        &H2 Software (XON/XOFF) flow control
        &H3 Hardware and software control
  &In   Received data software flow control.
        &I0 Flow control disabled-Default
        &I1 XON/XOFF to local modem and remote
        &I2 XON/XOFF to local modem only
        &I3 Host mode.  Hewlett Packard protocol
        &I4 Terminal mode.  Hewlett Packard protocol
        &I5 ARQ mode-same as &I2; non-ARQ mode
            look for incoming XON/XOFF
        &J0 Single phone connection RJ-11 jack
            Default
        &J1 Multiple phone connection RJ-12 or
            RJ-13 jack
  &Kn   Data compression.
        &K0 Disabled
        &K1 Auto enable/disable.  Default
        &K2 Enabled
  &Ln   Leased line operation.
        &L0 Disabled-Default
        &L1 Enabled
  &Mn   Normal or Error control Modes.
        &M0 Normal mode.  No error control
        &M1 Reserved
        &M2 Reserved
        &M3 Reserved
        &M4 Normal/ARQ mode-Normal if ARQ
            connection cannot be made-Default
        &M5 ARQ Mode-hangup if ARQ connection
            cannot be made
  &Nn   Data rate, data link (DCE/DCE)
        &N0 Normal link operations-Default
        &N1  300 bps  &N5 7200 bps
        &N2 1200 bps  &N6 9600 bps
        &N3 2400 bps  &N7 12.0k bps
        &N4 4800 bps  &N8 14.4k bps
  &Pn   Pulse dial make/break ratio
        &P0 North America-Default
        &P1 British Commonwealth
  &Rn   Receive data hardware (RTS) flow control.
        &R0 Delay before CTS after RTS; See S26
        &R1 Ignore RTS-Default
        &R2 Pass received data on RTS high; used
            only if software supports RTS
  &Sn   Data set ready (DSR) override.
        &S0 DSR override always on-Default
        &S1 Modem controls DSR
        &S2 Pulsed DSR; CTS follows CD
        &S3 Pulsed DSR
  &W    Write current settings to NRAM.
  &Xn   Reserved.
  &Yn   Break handling.  Destructive breaks clear the
        buffer; expedited breaks are sent immediately
        to the remote system.
        &Y0 Destructive, but don't send break
        &Y1 Destructive, expedited--Default
        &Y2 Non-destructive, expedited; modem
            sends break in sequence with data
            received from computer
  &Zn=s Write phone number (s) to NRAM at position
        n (0-3) 38 characters maximum.
  &Zn?  Display phone number stored in NRAM at
        position n (n=0-3).
