NOTE:   This file includes commands, result codes, and display codes
        NOT AVAILABLE on all models and revisions.  Some commands are
        new or were omitted from Reference Manual.  NOT ALL commands
        are available or functional in all modes and states (including
        COUNTRY CODE configuration).  Some models and revisions may
        support additional commands NOT documented here which are
        solely intendend for product developement and testing.  Any
        commands not documented here should not be used unless Supra's
        staff directly specifies using them.  This document is provided
        for reference only and is NOT certified to be free from errors.
        This document is produced and editted by Supra's Technical
        Support Staff as a customer service.

144_LIST.TXT  Rev 1.51.04a (PHM 2/26/96)  from Supra BBS (541)967-2444

        This document covers the following SupraFAXModem products:

        SupraFAXModem v.32bis (Ext)     sn: 14E165501 (and later)
        SupraFAXModem 144i              sn: 0051400   (and later)
        SupraFAXModem 144LC             sn: LCE038462 (and later)
        SupraFAXModem 144PB             All units
        SupraCOMcard 144                All units


DIRECT Commands (Commands NOT preceded by other characters)

A/      Re-execute Last Command
nnn     Escape Code per setting in register S2 (Default is ANSI character 43,
        the "+" symbol) (This command must be preceded and followed by a
        minimum period of no transmission set is register S12.)
<CR>    (A carriage return) - Terminate connection attempt in progress during
        the dialing or protocol neg. process.

DIALING Commands (Commands that follow ATD)

-()i    These symbols and spaces are ignored (or invalid and therefore ignored)
         and maybe be used in the dialing string.
0-9     DTMF code for the given number
A-D     DTMF code for the given letter
L       Dial the last dialing string (limitted to the first 40 characters).
P       Pulse dial the following digits
R       Accepted, but no action occurs.
Sn      Use dialing string stored in register n (0 to 3)
T       Tone dial the following digits
W       Wait for dialtone
*       DTMF code for "star"
#       DTMF code for "gate"
@       Wait for "quiet answer" (A 5 second silence.)
,       Pause (time set in S8) before finishing dialing string
!       Hook flash (go on-hook for 700ms)
^       Turn on 1300Hz call originating pulse
;       Return to command state without going "on-hook"

AT Commands (Commands that follow AT)

=x      Write value x to the last S register viewed.
?       Displays current setting for the last S register accessed.
A       Answer Phone Line
Bn      BELL/V.2x mode switches for 300 & 1200 bps {varies by model}
         B0=V.21 (300 bps) & v.22 (1200 bps)
         B1=BELL 103 (300 bps) & Bell 212A (1200 bps) (default in NA)

         B0=v.22 (1200 bps)
         B1=Bell 212A (1200 bps) (default in NA)
         B15=V.21 (300 bps)
         B16=Bell 103 (300 bps) (default in NA)
C1      Carrier Control Selection
         Provided for backward compatibility only. Does nothing but return "OK"
D       Dial Command
         Dials any mixed string of dialing commands. (See Dialing Commands)
En      Command Echo
         E0=not echo
         E1=do echo (default)
Fn      Line Select Modulation (Use either ATFn or a combination of ATS37=n
              and ATN0, but DO NOT try to USE BOTH at the same time.)
         F0     AutoMode Selection (Same as N1)
         F1     300 bps only (Same as N0S37=1,uses protocol in Bn setting
                        S31 bit 1 set to 0 and S37=1)
         F2     Not Used (returns "OK")
         F3     v.23 only 75TX/1200RX (originate) or 1200TX/75RX (answer)
                        (Same as N0S37=7, S31 bit 1 set to 0 and S37=1)
         F4     1200 bps only (protocol according to Bn setting)
                        (Same as N0S37=5, S31 bit 1 set to 0 and S37=5)
         F5     2400 bps only (v.22bis)
                        (Same as N0S37=6, S31 bit 1 set to 0 and S37=6)
         F6     4800 bps only (v.32/v.32bis)
                        (Same as N0S37=8, S31 bit 1 set to 0 and S37=8)
         F7     7200 bps only (v.32bis)
                        (Same as N0S37=12, S31 bit 1 set to 0 and S37=12)
         F8     9600 bps only (v.32/v.32bis)
                        (Same as N0S37=9, S31 bit 1 set to 0 and S37=9)
         F9     12000 bps only (v.32bis)
                        (Same as N0S37=10, S31 bit 1 set to 0 and S37=10)
         F10    14400 bps only (v.32bis)
                        (Same as N0S37=11, S31 bit 1 set to 0 and S37=11)
Hn      Hook Control
         H0=On-Hook (Hang Up)
         H1=Off-Hook (pick up phone line) for the time period set in S7.
In      Identification Codes
         I0=SupraFAXModem product ID code
         I1=ROM checksum
         I2=Test Checksum (OK if correct, ERROR if not)
         I3=ROM revision code
         I4=Encrypted report of supported protocols
         I5=Supra Copyright info.
         I6=Country Code for country PSTN Signals are Configured for.
         I7=DSP Model & Version Code
         I10=Supported Features (encoded - see end of text for listing)

         I99=Electronic Serial Number
Ln      Speaker Volume
         L0,L1   Low
         L2      Medium (default)
         L3      High
L+n     Increase Total Volume Gain n units (1-32) (Not the same as Ln)
                (This command currently only in use on PowerBook models.)
L-n     Decrease Total Volume Gain n units (1-32) (Not the same as Ln)
                (This command currently only in use on PowerBook models.)
Mn      Speaker Control
         M0      OFF
         M1      On until carrier is received (default)
         M2      Always On
         M3      On when answering/On only after dialing & until carrier detect
Nn      AutoMode Selection (Carrier Rate when Originating Call)
         N0=Connect ONLY at rate set in S37 register
            (N0S37=0 forces the modem to dial at the current serial port rate.)
         N1=Connect Normally (default)
On      Return from COMMAND MODE to ONLINE state
         O0=Return to ONLINE state
         O1=Request a retrain & Return to ONLINE state
P       Set dialing mode to PULSE (Sets S14 bit 5 to 1)
Qn      Result Code Mode
         Q0=Enabled (Default)
         Q1=Disabled
         Q2=Enabled when Originating, Disabled when answering
Sr?     Reports value in S register r
SCr?    Reports value is SC register r
Sr=n    Write value n into S register r
SCr=n   Write value n into SC register r
T       Set dialing mode to TONE (Sets S14 bit 5 to 0)
Vn      Result Code mode select
         V0=Numeric
         V1=Verbose (default)
Wn      Error Correction Result Code Selection
         W0=CONNECT XXXX (DTE rate) (default)
         W1=Report Error Correction Mode
         W2=CONNECT XXXX (DCE rate)
Xn      Dialing mode/CONNECT result codes
         X0=Blind Dial (ignore Dialtone & Busy), send CONNECT
         X1=Blind Dial, send CONNECT XXXX
         X2=follow Dialtone, but ignore Busy, send CONNECT XXXX
         X3=follow Busy, but ignore Dialtone, send CONNECT XXXX or BUSY
         X4=send code(s) set by Wn & S95, BUSY, or NO DIALTONE (default)
Yn      Long Space Disconnect
         Y0=Not active (default, S27 bit7 set to 0)
         Y1=Active (S27 bit7 set to 1, see manual for function)
Zn      Soft reset and Load Stored profile n (last functional command on line)
         Z0=resets modem & loads stored profile 0
         Z1=resets modem & loads stored profile 1
&Cn     DCD (RLSD) signal control
         &C0=DCD always on
         &C1=DCD follows carrier state (ON when carrier present)
&Dn     Modem reaction to DTR on to off transition greater than S25 setting
              a  b  c  (Settings of &Qn)
         &D0= N  2  1
         &D1= 3  3  1
         &D2= 1  1  1
         &D3= 4  4  1

         List of modem reactions:

         N=No Action
         1=Hang up if off-hook & auto-answer is disabled
         2=Hang up if off-hook & auto-answer not disabled
         3=Switch to asynchronous command state
         4=Perform soft reset (like ATZ and profile is set by &Y setting)

         List of &Q states:
         a. &Q0,&Q5,&Q6
         b. &Q1,&Q4
         c. &Q2,&Q3

&Fn     Load Factory Default Configuration
         &F0     No flow control, No error correction, No data compression
         &F1     MAC hardware flow control, correction & compression active
         &F2     Hardware flow control, correction & compression active
                 (&F2 is default for DOS, WINDOWS, AMIGA, & STAND ALONE units.)
&Gn     Guard Tone Selection
         &G0     Do Not generate guard tones   (US Default)
         &G1     Generate 550Hz guard tone     (not supported)
         &G2     Generate 1800Hz quard tone    (World Wide support models only)
&Jn     Phone Jack Selection
         &J0     Select RJ-11, RJ-41, & RJ-45S (Default)
         &J1     Select RJ-12 & RJ-13          (not supported)
&Kn     Serial Port Flow Control
         &K0=None
         &K3=Bidirectional Hardware (RTS/CTS)
         &K4=Software (XON/XOFF)
         &K5=Transparent Software flow control
         &K6=Software (XON/XOFF) & Hardware (RTS/CTS) flow control
&Ln     Line Type Selection
         &L0    Dial-up line (Default)
         &L1    Leased Line  (not supported)
&Mn     Same function as &Q(0-3) settings.
&Pn     Pulse dialing MAKE/BREAK ratio
         &P0 39%/61% make/break ratio at 10PPS {US/CANADA}  (Default)
         &P1 33%/67% make/break ratio at 10PPS {UK/Hong Kong}
         &P2 39%/61% make/break ratio at 20PPS
         &P3 33%/67% make/break ratio at 20PPS {Japan}
&Qn     Asynchronous/Synchronous Mode Selection
         &Q0     Asynchronous Direct mode
         &Q1 *   Synchronous Mode 1 (Terminal must support both modes.)
                  Call placed Async, modem switches to Sync. When DTR is dropped
                 modem returns to Async.
         &Q2 *   Synchronous Mode 2 Modem dials number in stored location 0
                  when DTR goes from LOW to HIGH.
         &Q3 *   Synchronous Mode 3 Dial number manually on a telephone, and
                  then bring DTR high to let the modems connect.
     * CAUTION!  Be VERY careful when issuing these commands!  Once you enter
                  &Q(1-3) and save it to memory, there are only three known
                  ways to return to Asynchronous Mode:
                 1. Issue AT &Q(0,5-9) &W from a Synchronous Terminal to restore
                    the modem to Asynchronous Mode.
                 2. Connect modem to an Asynchronous Terminal with the DTR
                    signal (line 20) disabled (a "break-out" box works very
                    nicely for this) and issue the configuration you want or
                    AT &Q(0,5-9) &W to return the modem to Asynchronous Mode.
                 3. Send the modem in to our repair department.
         &Q4     Not Used
         &Q5     Asynchronous Reliable Mode (most common default)
         &Q6     Asynchronous Normal Mode
&Rn     RTS Synchronous Mode
         (In Asynchronous mode CTS is always ON unless &K3 is set.)
         &R0     CTS responds to RTS (default)
         &R1     CTS always on unless &K3 is set
&Sn     DSR Action Select
         &S0 Always on (default)
         &S1 Follows EIA specification (Active following carrier tone, and
          until carrier is lost.)
&Tn     Modem test modes for trained technicians (you must set the serial port
          at 2400 or 9600, set the modem with AT&F0, and set S18 between 1 and
          255if you wish the tests to stop on their own.)
         AT&T0   Terminate test in progress
         AT&T1   Local Analog Loopback (+++ then &T0 to stop)
         AT&T2   Returns ERROR
         AT&T3   Local Digital Loopback for remote modem
         AT&T4   Grant request for Remote Digital Loopback (default)
         AT&T5   Prohibit request for Remote Digital Loopback
         AT&T6   Remote Digital Loopback
         AT&T7   Remote Digital Loopback with self-test
         AT&T8   Local Analog Loopback with self-test (+++ then &T0 to stop)
&V      Display Configuration Profiles
&Wn     Write ACTIVE Profile to Stored Profile n
         &W0     Writes to profile 0
         &W1     Writes to profile 1
&Xn     Synchronous Transmit Clock Source
         &X0=Modem generated (default)
         &X1=DTE supplied
         &X2=Derived from the data carrier received from the remote modem.
&Yn     Select Configuration Loaded at power-up
         &Y0=Load profile 0 (default)
         &Y1=Load profile 1
&Zx=n   Write telephone number n into register number x (0-3).
\An     Maximum MNP Block Size for Stream Links
         \A0     64 characters
         \A1     128 characters
         \A2     192 characters
         \A3     256 characters (default)
\Bn     Transmit Break of length n x 100ms where n is 1 to 9 in non-error
         correction state.  (Sends Link Attention in MNP mode)
\F      Display Telephone Directory (As stored via AT&Zn)
\Gn     Modem-to-Modem XON/XOFF flow control (Normal and Direct Mode Only)
         \G0=Disabled (default)
         \G1=Enabled
\Jn     Enable DTE Auto Rate Adjustment
         \J0    Disabled
         \J1    DTE rate is adjusted to match carrier rate.
\Kn     Break Processing Control (controls remote modem during MNP mode)
         When received from local DTE & Modem is in Data Transfer Mode:
          \K0,\K2,\K4   Enter command state without sending BREAK to remote
          \K1           Clear Modem & Terminal Buffers & send BREAK to remote
          \K3           Don't clear Buffers, but send BREAK to remote
          \K5(default)  Send BREAK to remote in sequence with any transmitted
                         data (default)
         In Escape (Online Command) mode:
          \K0,\K1           Clear data buffers and sends break to remote modem.
          \K2,\K3           Send break to remote modem immediately.
          \K4,\K5(default)  Send break to remote modem in sequence with data.
         When received from remote modem in non-error correction mode:
          \K0,\K1           Clear data buffers and sends break to DTE
          \K2,\K3           Send break to DTE immediately.
          \K4,\K5(default)  Send break in sequence with received data to DTE.
\Ln     MNP Block Transfer Control
         \L0     Use Stream Mode for MNP Links (default)
         \L1     Use Block Mode for MNP Links
\N      Operating Mode
         \N0     Normal Mode (carrier and port rate may differ - No MNP or V42,
                        forces &Q6)
         \N1     Direct Mode (carrier rate "matches" port rate - No MNP or V42,
                        forces &Q0)
         \N2     Reliable Mode (a V42 or MNP connection must be made or the
                        modem will hang up, forces &Q5 S36=4 S48=7)
         \N3     AutoReliable Mode (default mode where ALL connection are
                        supported, forces &Q5 S36=7 S48=7)
         \N4     LAPM Mode (a V42 connection must be made or the modem will
                        hang up, forces &Q5 S48=0)
         \N5     MNP Mode (a MNP connection must be made or the modem will
                        hang up, forces &Q5 S36=4 S48=128)
\S      Report Active Configuration
\W      Split-Speed Operation (v.23)
         \W0    Disable split-speed mode (default)
         \W1    Enable split-speed mode v.23 (forces F3)
%Cn     Data Compression Enable/Disable
         %C0     Disabled
         %C1     MNP5 Enabled
         %C2     V.42bis (BTLZ) Enabled
         %C3     MNP5 & V.42bis (BTLZ) Enabled
%En     Auto Retrain & Fallback/Fall Forword based on line quality monitoring
         %E0=Disabled (Default)
         %E1=Enable Auto Retrain based on line quality
         %E2=Does Nothing...Rockwell Function Mapped in %G1 register.
         %E3=Undefined
%Fn     Split-Speed Direction Select
         %F1    75TX/1200RX
         %F2    1200TX/75RX
         %F3    v.23 Half-Duplex (independant of \W)
%Gn     Rate Renegotiation based on line monitor readings
         %G0=Disabled
         %G1=Enabled (Default)
%L      Reports Received Signal Level (at connection to DSP) nnn in -dBm.
         nnn=9 or stronger       reports as 9
         nnn=10 to 42            reports as value directly
         nnn=43 or weaker        reports as 43
%Q      Report Received signal Quality (nnn range 0 to 127)
         nnn=1 to 8 current signal quality excellent (higher rate may be used)
         nnn=9 to 20 current signal good (best carrier rate for line condition)
         nnn=20 to 30 current signal poor (lower carrier rate should be used)
         nnn=31 to 127 signal very bad (or gone), try forcing a lower rate
         NOTE: Modem uses 8 and 20 as rate renegotiation watermarks.
*B      Return Blacklisted Numbers
         Displays a numbered chart of currently BLACKLISTED numbers {Except
         permanently forbidden numbers based on country setting}  "OK" is
         returned if no temporary numbers are BLACKLISTED.
*C      Remote Password Configuration (for MNP connections ONLY)
         Gives ENTER PASSWORD prompt and accepts a 6 to 12 charactor
         alphanumeric string.  (Default is QWERTY)
*D      Return Delayed Numbers
         Displays a numbered chart of DELAYED numbers and the length of delay
         in the format HH:MM:SS  "OK" is returned if no numbers are delayed.
*E      Exit Remote Configuration Mode
*Hn     Link Negotiation Speed (MNP 10)
         *H0    Link negotiation occurs at highest supported rate (Default)
         *H1    Link negotiation occurs at 1200 bps.
         *H2    Link negotiation occurs at 4800 bps.
*L      Display Secure Access Directory
         Displays a numbered chart (0-19) of all secure access (callback)
         directory entries in the following format: #-Password:Callback_Number
         If no callback number is set then the colon is omitted.
*NCnn   Country Select (Only some of the possible countries are supported)
         Sets country PSTN parameters to the code number specified.
         You MUST reset (ATZ or power cycle) the modem for change to take occur.
          *NC000        United States
          *NC001        Austria
          *NC002        Belgium
          *NC003        Denmark
          *NC004        Finland
          *NC005        France
          *NC006        Germany
          *NC007        Ireland
          *NC008        Italy
          *NC010        Netherlands
          *NC011        Norway
          *NC012        Portugal
          *NC013        Spain
          *NC014        Sweden
          *NC015        Switzerland
          *NC016        United Kingdom
          *NC017        Greece
          *NC020        Canada
          *NC021        Mexico
          *NC022        United States
          *NC040        Australia
          *NC043        Japan
          *NC047        Singapore
          *NC048        New Zealand

*Px:p:n Store/Delete a Password/Phone Number Pair
        *Px(0-19):p(password of 6 to 12 charactors):n(0 to 40 dialing codes)
         If the last colon and dialing codes are omitted then password check
         occurs, but no call-back occurs.
*R      Request Remote Configuration Mode (during MNP mode connection ONLY)
         If successful, a REMOTE PASSWORD prompt is display, and you should
         issue the 6 to 12 charactor password currently set.  If the password
         is accepted, a !AT prompt will be displayed and a limitted set of
         commands can then be issued with the "AT" header omitted.  Exit this
         mode with the *E command.
*Zn     Change Dialing Codes (Used in countries like NORWAY that support two
                methods of pulse dialing.)
         *Z0    Use dial code 0 (default)
         *Z1    Use dial code 1
#CID?   Displays current CallerID mode (0-2)
#CID=n  Caller ID Mode
         #CID=0 Disable Caller ID (Default)
         #CID=1 Enable Formatted Caller ID Mode
          Result code syntax is as follows:
           DATE=MMDD (where MM is month number 01-12 & DD is day 01-31)
           TIME=HHMM (where HH is hour 00-23 & MM is minute 00-59)
         "Single Page Mode"
           NMBR= number code or statement*
               * The NUMBER CODE is normally either the subscriber's area code,
                 local exchange, and subscriber loop number, OR a code unique to
                 that individual subscriber. STATEMENTs are used for calls from
                 non Caller ID Areas and subscribers requesting no display.
           NAME= listed subscriber name <this is an option not always supported>
         "Multiple Page Mode"
           MESG= formatted number string * **
               * Here is an example string: 030A35303339363732343030
                 The string uses this code: CCLL#0#1#2#3#4#5#6#7#8#9
                 CC (03) is the code meaning this is "Multiple Page" Caller ID
                 LL is the hexadecimal length of the data in the string.
                    (in this case 0A hex - 10 decimal)
                 #n's are the ASCII digits dialed (in hexadecimal)
                    A neat trick to convert these to decimal is to note that
                    the first digit is always a number "3" and the second digit
                    is the decimal number dialed, so the formatted string:
                    030A35303339363732343030 converts directly to 5039672400
              ** At the time of this printing, conversion of "Multiple Page"
                    Caller ID string coversion is not supported in the modem,
                    so the data is displayed in the raw hexadecimal format.
         #CID=2 Enable Raw (ASCII printable HEX number) Mode
         #CID=? Returns Caller ID Modes supported.
)M      Cellular Power Level Adjustments (MNP 10)
         )M0    Power not adjusted during MNP 10 link negotiation (Default)
         )M1    Power level adjusted during MNP 10 link negotiation.
@Mn     MNP-10 Power Level (0-31)
-Kn     MNP Extended Services (MNP 10)
         -K0    Disable v.42 LAPM to MNP 10 connection
         -K1    Enable v.42 LAPM to MNP 10 connection
-Qn     Fallback to v.22bis/v.22 in MNP10 mode
         -Q0    Disabled (Fallback only allowed to 4800 bps)
         -Q1    Enabled (Fallback allowed to v.22bis/v.22) (Default)

V.25bis Commands / Indications

Commands

CIC     Connect Incoming Call (goes off-hook to answer call, if no call is
                present INV is returned)
CNL     Local Configuration (in Async. mode this command allows AT Command to
                be used - CNLS0=3) {Extended V.25bis}
CRI     Call Request with Number and Indentification (same as CRN, but a ";"
                charactor can be inserted and followed by a code, which the
                modem will ignore.)
CRN     Call Request with Number (goes off-hook and attempts to dial the string
               issued with the command)
        These charactors are accepted in the string:
        0-9     Digits 0-9
        *       "Star" digit (Tone dial only)
        #       "Gate" digit (Tone dial only)
        T       Select TONE dialing
        P       Select PULSE dialing
        <       Pause (Length set via S8)
        =       Pauses for twice the period set in S8
        :       Wait for dialtone
        &       Flash (Goes ON-Hook for the period set in S29)
        ^       Enable calling tone
CRS     Call Request with Memory Address (same as CRN, but dials string stored
                in dialing memory locations 0-19)
DIC     Disregard Incoming Call (Ignores incoming call, returns INV if no call
                is present or autoanswer is not enabled)
PRI     Program Identification (Just returns VAL)
PRN     Program Number (stores dialing string into the select dialing string
                memory location)  PRN (0-19);(dialing string)
RLD     List Request of Delayed Call Numbers (Display a numbered chart of
                delayed numbers and the delay periods)
RLF     List Request of Forbiden Numbers (Lists numbers blacklisted during
                modem operations according to country setting procedures)
RLI     List Request of Identification Numbers
RLN     List Request of Stored Numbers (Dialing Strings)

Indications

CFI     Call Failure Indication (Sends message followed by coded failure reason)
        AB      No Dialtone or call abort timer expired.
        CB      Local Circuit busy (phone off-hook)
        ET      BUSY (engaged) tone detected
        FC      Requested number on Forbidden call list (no call attempted)
        NT      Ringback detected or stopped & call abort timer expired
        RT      Ringback detected & call abort timer expired
CNX     Connect (maybe be followed by a code to show speed of connection)
DLC     Delayed Call (returns code with length of call delay)
INC     Incoming Call (sent when ring signal is detected)
INV     Invalid Command (issued if command is invalid or unable to be executed)
LSD     List of Delayed Call Numbers (returned in responce to RLD)
LSF     List of Forbidden Numbers (returned in responce to RLF)
LSI     List of Identification Numbers (returned in responce to RLI)
VAL     Valid Command (sent if command is executed & no other responce occurs)


S Registers

S0      Number of Rings to Auto Answer (0 to 255) (0 is disable & default)
S1      Number of Rings before last answer.
S2      Escape Code character (0 to 255) (default is 43 "+")
S3      Carriage Return character (0-127) (default is 13)
S4      Line Feed character (0-127) (default is 10)
S5      Backspace character (0-32) (default is 8)
S6      Time to Wait before Blind Dial (2-255 seconds)  (default is 2)
         (Applies only in X,X1, or X3 dialing mode)
S7      Time to Wait for Carrier (1-255 seconds) (default is 50)
S8      Pause Time for Comma Dial Command (2-255 seconds) (default is 2)
S9      Time to Wait Before Recognizing Carrier (1-255 .1 seconds)
         (Default is 6)
S10     Delay from Lost Carrier to Hang Up (1-255 1/10 seconds) (Default is 14,
         Modem assumes carrier always present if set to 255)
S11     DTMF Tone Duration/Spacing (35 to 102 .01 seconds) (Default is 95)
S12     Escape Code Guard Time (0 to 255 .02 seconds) (0 to disable, the
         default is 50)
S13     Reserved
S14     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1)   Reserved
         1 (2)   Command echo (En)
                  0 Disabled (E0)
                  1 Enabled  (E1 default)
         2 (4)   Quiet Mode (Qn)
                  0 Send result codes (Q0 default)
                  1 No result codes   (Q1)
         3 (8)   Result codes (Vn)
                  0 Numeric (V0)
                  1 Verbose (V1 default)
         4 (16)  Reserved
         5 (32)  Dial Mode
                  0 Tone  (T default)
                  1 Pulse (P)
         6 (64)  Reserved
         7 (128) Carrier Mode
                  0 Answer
                  1 Originate
S15     Reserved
S16     Diagnostic Test Mode setting -Bit Mapped (default 0)
         0       &T1     0 Disable       1 Enable
         1       Not Used
         2       &T3     0 Disable       1 Enable
         3       &T4/&T5 0 Off           1 In progress
         4       &T6     0 Disable       1 Enable
         5       &T7     0 Disable       1 Enable
         6       &T8     0 Disable       1 Enable
         7       Not Used
S17     Reserved
S18     Test Mode Timer (0-255 seconds, 0=Runs endlessly)
S19     Reserved
S20     Reserved
S21     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1)   Set by &Jn command but ignored otherwise
                  0 &J0 (default)
                  1 &J1
         1 (2)   Reserved
         2 (4)   CTS Mode (&Rn)
                  0 CTS always on   (&R0)
                  1 CTS follows RTS (&R1 default)
         3 (8) & 4 (16) DTR behavior (&Dn)
                  0,0 &D0 (default)
                  1,0 &D1
                  0,1 &D2
                  1,1 &D3
         5 (32)  DCD (RLSD) behavior (&Cn)
                  0 &C0 (Default)
                  1 &C1
         6 (64)  DSR behavior (&Sn)
                  0 &S0 (Default)
                  1 &S1
         7 (128) Long space diconnect (Yn)
                  0 Y0  (Default)
                  1 Y1
S22     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1) & 1 (2)  Speaker volume (Ln)
                  0,0 Low    (L0)
                  1,0 Low    (L1)
                  0,1 Medium (L2 default)
                  1,1 High   (L3)
         2 (4) & 3 (8)  Speaker control (Mn)
                  0,0 Disabled            (M0)
                  1,0 On until carrier    (M1 default)
                  0,1 ON Always           (M2)
                  1,1 On during handshake (M3)
         4 (16), 5 (32), & 6 (64) Dialing Mode / Result Codes (Xn)
                0,0,0 X0
                1,0,0 Reserved
                0,1,0 Reserved
                1,1,0 Reserved
                0,0,1 X1
                1,0,1 X2
                0,1,1 X3
                1,1,1 X4 (Default)
         7 (128) Reserved
S23     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1)   Grant RDL
                  0 RDL not allowed (&T5)
                  1 RDL allowed     (&T4 default)
         1 (2), 2 (4), & 3 (8) Assumed DTE Rate
                0,0,0 0-300 bps
                1,0,0 600 bps
                0,1,0 1200 bps
                1,1,0 2400 bps (Default)
                0,0,1 4800 bps
                1,0,1 9600 bps
                0,1,1 19200 bps
                1,1,1 Reserved
         4 (16) & 5 (32) Assumed DTE parity
                  0,0 Even
                  1,0 Reserved
                  0,1 Odd
                  1,1 None (default)
         6 (64) & 7 (128) Guard tone (&Gn)
                  0,0 None    (&G0 Default)
                  1,0 550 Hz  (&G1)
                  0,1 1800 Hz (&G2)
                  1,1 Reserved
S24     Sleep Inactivity Timer (0-255 seconds 0 default/disable)
         Number of seconds before modem enters sleep mode without either DTE or
         phone line activity.
S25     Delay to DTR (0-255 .01 seconds, 5 default)
S26     RTS/CTS Delay (0-255 .01 seconds, 1 default) (Sync mode only)
S27     Bit Mapped Option Status
        Bit(Dec)
         0 (1), 1 (2), 3 (8) Sync/Async Mode Selection (&Mn/&Qn)
                0,0,0 &M0/&Q0
                1,0,0 &M1/&Q1
                0,1,0 &M2/&Q2
                1,1,0 &M3/&Q3
                0,0,1 &Q4
                1,0,1 &Q5 (Default)
                0,1,1 &Q6
         2 (4)   Leased line control (&Ln)
                  0 Dial-up line (&L0 default)
                  1 Leased line  (&L1)
         4 (16) & 5 (32) Internal Sync clock select (&Xn)
                  0,0 Internal (&X0 default)
                  1,0 External (&X1)
                  0,1 Slave    (&X2)
         6 (64)  CCITT/Bell Mode (Bn)
                  0 CCITT (B0)
                  1 Bell  (B1 US default)
         7 (128) Reserved
S28     Bit Mapped Options
        Bit(Dec)
         0 (1)   V.23 split screen (\Wn)
                  0 Disabled (\W0 default)
                  1 Enabled  (\W1)
         1 (2)   V.23 split screen direction
                  0 75Tx   (%F0 default)
                  1 1200Tx (%F1 default)
         2 (4)   V.23 half-duplex
                  0 Disabled
                  1 Enabled (%F3)
         3 (8) & 4 (16)
                 Pulse dialing mode (&Pn)
                  0,0 &P0 (Default)
                  1,0 &P1
                  0,1 &P2
                  1,1 &P3
         5 (32)  Reserved
         6 (64)  Reserved
         7 (128) Reserved
S29     Flash Dial Modifier Time
S30     Inactivity Timer (0-255 Unit 10 seconds, 0=disable {default})
         In Reliable mode any data transfer resets timer.
         In Normal mode only sent data resets timer.
S31     Bit Mapped Options
        Bit(Dec)
         0 (1)   Reserved
         1 (2)   Auto Mode Selection
                  0 Disabled (N0)
                  1 Enabled  (N1 default)
         2 (4), 3 (8) Error Correction Result Code (Wn)
                  0,0 DTE Speed only (W0 default)
                  1,0 Full Reporting (W1)
                  0,1 DCE Speed only (W2)
         4 (16)  Reserved
         5 (32)  Reserved
         6 (64)  Reserved
         7 (128) Reserved
S32     XON Charactor (0-255, Default 17)
S33     XOFF Charactor (0-255, Default 19)
S36     Negotiation Failure Treatment (0-7  7 is default)
         Fallback options when S48=128 or error correction link fails:
        Bits 0-2
         2 1 0 (Dec)
         0,0,0 (0)    Disconnect
         0,0,1 (1)    Establish Direct connection
         0,1,0 (2)    Undefined
         0,1,1 (3)    Establish Normal connection
         1,0,0 (4)    Establish MNP connection if possible, else Disconnect
         1,0,1 (5)    Establish MNP connection if possible, else Direct Mode
         1,1,0 (6)    Undefined
         1,1,1 (7)    Establish a MNP connection if possible, else Normal Mode
        Bits 3-5 Reserved
        Bits 6-7 Same as S110 setting
           1 0 (Dec)
           0,0 (0)    V.32 mode
           0,1 (64)   V.32bis mode
           1,0 (128)  V.32bis with fallback
           1,1 (192)  V.32/V.32bis mode forced start at lowest carrier in
                        S109 and fall forward and fall back using rates set
                        in S109.
S37     Forced Single Carrier Rate (0-1,5-12  0 is default)
         0       Carrier Rate at the rate the last AT command was issued.
                 (If rate is above highest carrier rate, then the highest
                 carrier rate the modem supports is used.)
         1       300 bps
         2-4     Undefined
         5       1200 bps
         6       2400 bps
         7       1200/75 bps    (v.23 mode)
         8       4800 bps
         9       9600 bps
         10      12000 bps
         11      14400 bps
         12      7200 bps
S38     Delay Before Forced Disconnect (0-255 seconds, default 20)
         0-254   Delay in seconds from H command, or DTR toggle ON or OFF (if
                 modem is set to follow DTR), before modem disconnects.
         255     Modem send data out of buffer until completed or connection
                 is lost.
S39     Flow Control
         0      None                    &K0
         3      RTS/CTS                 &K3
         4      XON/XOFF                &K4
         5      Transparent XON/XOFF    &K5
         6      RTS/CTS & XON/XOFF      &K6
S40     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1)   MNP Extended Services (-Kn)
                  0 Disable (-K0)
                  1 Enable  (-K1)
         1 (2)   Power Level Adj. for Cellular Use [)Mn]
                  0 Auto Adj.  [)M0 default
                  1 Force Adj. [)M1]
         2 (4)   MNP Link negotiation speed (*Hn)
                  0 At highest rate (*H0 default)
                  1 At 1200 bps     (*H1)
         3 (8), 4 (16), & 5 (32) Break Handling (\Kn)
                0,0,0 \K0
                1,0,0 \K1
                0,1,0 \K2
                1,1,0 \K3
                0,0,1 \K4
                1,0,1 \K5
         6 (64) & 7 (128) MNP Block size (\An)
                  0,0 64  (\A0)
                  1,0 128 (\A1)
                  0,1 196 (\A2)
                  1,1 256 (\A3)
S41     Bit Mapped Option Status Codes
        Bit(Dec)
         0 (1) & 1 (2) Compression Selection (%Cn)
                  0,0 Disabled        (%C0)
                  1,0 MNP 5           (%C1)
                  0,1 V.42bis         (%C2)
                  1,1 MNP 5 & V.42bis (%C3)
         2 (4)   Auto Retrain (%En)
                  0 Disable (%E0 default)
                  1 Enable  (%E1)
         3 (8)   Modem to Modem Flow Control (\Gn)
                  0 Disable (\G0 default)
                  1 Enable  (\G1)
         4 (16)  Block mode control (\Ln)
                  0 Stream (\L0 default)
                  1 Block  (\L1)
         5 (32)  Reserved
         6 (64)  Reserved
         7 (128) Reserved
S46     Protocol Selection (136 or 138) (Affects v.42/v.42bis mode)
         136     Disable Compression
         138     Enable Compression (default)
S48     v.42 Negotiation (0,7,128)
         0       Disable Negotiation, proceed with LAPM
         7       Enable Negotiation (default)
         128     Disable Negotiation, fallback per S36 setting
S80     Soft-Switch Functions (Bit Mapped Options)
        Bit (Decimal Value)
         0 (1)   Reserved (Always 1)
         1 (2)   Reserved
         2 (4)   Reserved
         3 (8)   Answer (0) / Originate (1)
         4 (16)  Reserved
         5 (32)  Command Mode  AT (0) / V.25bis (1)
         6 (64)  Remote Configuration  Disabled (0) / Enabled (1)
         7 (128) Callback Security     Disabled (0) / Enabled (1)
S82     LAPM Break Handling Options (3,7,128)
         3       Expedited: Modem sends break immediately & data integrity is
                         maintained before and after break.
         7       Destructive: Modem sends break immediately & data being
                         processed by each modem at that time is destroyed.
         128     In sequence: Modem sends break in sequence with transmitted
                         data & data integrity is maintained before and after
                         the break
S86     Report Connection Failure Cause Code
         0      Normal disconnect
         1-3    Undefined Error Code
         4      Carrier loss
         5      No error correction at other end
         6      No response to feature negotiation
         7      This modem is ASYNC only, other is SYNC
         8      No framing technique in common
         9      No protocol in common
         10     Bad response to feature negotiation
         11     No sync information from remote
         12     Normal hangup initiated by remote
         13     Retransmission limit reached
         14     Protocol violation occured
         15-255 Undefined Error Code


S95     Extended Result Code Control (default sum is 0)
         Each bit set high in this register enables the corresponding result
         code regardless of the W command setting.
        Bit (Decimal Value)
         0 (1)   CONNECT XXXX result code gives DCE to DCE rate instead of
                 local DTE to DCE rate.
         1 (2)   Append /ARQ to CONNECT code if an error protocol is active
         2 (4)   Enable CARRIER XXXX result code
         3 (8)   Enable PROTOCOL XXXX result code
         4 (16)  Undefined
         5 (32)  Enable COMPRESSION result code
         6 (64)  Undefined
         7 (128) Enable RINGING result code for ringback detection


S109    v.32/v.32bis Negotiation Rate Selection (default sum is 62)
         Each bit set high in this register enables the corresponding rate as
         a valid rate to be used during rate negotiation.
        Bit (Decimal Value)
         0 (1)   Unused
         1 (2)   4800 bps
         2 (4)   7200 bps
         3 (8)   9600 bps
         4 (16)  12000 bps
         5 (32)  14400 bps
         6 (64)  Unused
         7 (128) Unused
S110    v.32/v.32bis Mode & Rate Negotiation Control
         0       Normal v.32 mode (no v.32bis support)
         1       Normal v.32bis mode
         2       v.32bis mode with automatic rate renegotiation (default)
         3       v.32bis mode with automatic rate renegotiation starting with
                 the lowest rate set in S109 and working up one defined rate at
                 a time toward the highest rate set in S109 (based on %Q level
                 at each rate prior to stepping up.) (If the modem steps back
                 down, it will also follow the S109 settings.)
S190    Minimum "GOOD" EQM (see %Q) Time  (10-255 seconds) (60 default)
         V32, V32B, connections are affected.  S190 sets the minimum period
         the EQM (%Q) level must be "GOOD" before attempting to "fall forward"
         to a higher rate.
S192    Special Function Control
        Bit (Decimal Value)
         0 (1)   Silent Answer Snoop Mode (1 is Default when SA mode is enabled)
                  0 "Standard" Full CNG  (1100Hz tone for 500ms +/-15%, then a
                      3000ms +/-15% period w/o a 1100Hz tone longer than 100ms.
                      "Snoop" occurs for 3 seconds after each ring, and for
                      12 seconds after the last ring.)
                  1 "Fast" CNG Tone Only (1100Hz tone for 500ms +/-15%.
                      "Snoop" occurs for 3 seconds after each ring, and for
                      5 seconds after the last ring.  Voices, Music, or Signals
                      containing 1100Hz for 500ms may cause false detection.)
         1 (2)   Reserved
         2 (4)   Reserved
         3 (8)   Reserved
         4 (16)  Reserved
         5 (32)  Reserved
         6 (64)  Reserved
         7 (128) Reserved
S202    Remote Access Escape Character (0-255, Default 170)

SCn=n   BUSY Detect Watermark Controls
         Each register "pair" holds the value for each setting.  To set a value,
         divide the setting by 256.  The integer goes in the second register,
         while the remained goes in the first.  (A setting of 516 would convert
         to 2 Remainder 4, and could be set by sending ATSC0=4SC1=2 to the
         modem.)  Settings are in 1/100ths of a second.
        Default values:
         Minimum BUSY ON Time
          SC0=30
          SC1=0
         Maximum BUSY ON Time
          SC2=75
          SC3=0
         Minimum BUSY OFF Time
          SC4=30
          SC5=0
         Maximum BUSY OFF Time
          SC6=75
          SC7=0
         (Defaults support FCC Spec. BUSY signal.  Setting SC0=25 & SC4=25
          allows FAST BUSY to also be detected as BUSY.)
SC8=n   Set number of valid BUSY Pulses before reporting BUSY (4 is default)


FAX commands of special interest to Supra Users:
        +FAE=n  (CLASS 1 Only) Adaptive Answer / Silent Answer Mode Control
                 0       Disable Both
                 1       Adaptive Answer ONLY
                 2       Adaptive Answer & Silent Answer
                 3       Silent Answer ONLY
        +FAA=n  (CLASS 2 Only) Adaptive Answer / Silent Answer Mode Control
                 0       Disable Both
                 1       Adaptive Answer ONLY
                 2       Adaptive Answer & Silent Answer
                 3       Silent Answer ONLY

Connection Result Codes:

Numeric Verbose
0       OK
1       CONNECT                 (300 bps)
2       RING
3       NO CARRIER
4       ERROR
5       CONNECT 1200
6       NO DIALTONE
7       BUSY
8       NO ANSWER
9       CONNECT 0600
10      CONNECT 2400
11      CONNECT 4800
12      CONNECT 9600
13      CONNECT 7200
14      CONNECT 12000
15      CONNECT 14400
16      CONNECT 19200
17      CONNECT 38400
18      CONNECT 57600
19      CONNECT 115200          (Not Currently Supported on MOST models)
22      CONNECT 1200/75         (Models with v.23 support only)
23      CONNECT 75/1200         (Models with v.23 support only)

24      DELAYED
32      BLACKLISTED
33      FAX
35      DATA

40      CARRIER 300
44      CARRIER 1200/75         (Models with v.23 support only)
45      CARRIER 75/1200         (Models with v.23 support only)
46      CARRIER 1200
47      CARRIER 2400
48      CARRIER 4800
49      CARRIER 7200
50      CARRIER 9600
51      CARRIER 12000
52      CARRIER 14400

66      COMPRESSION: CLASS 5    (MNP 5)
67      COMPRESSION: V.42BIS    (BTLZ)
69      COMPRESSION: NONE

70      PROTOCOL: NONE
77      PROTOCOL: LAP-M         (V.42)
80      PROTOCOL: ALT           (MNP)
81      PROTOCOL: ALT - CELLULAR        (MNP 10)
200     RINGING
+FC     +FCERROR

V.32 & V.32BIS EXTERNAL DISPLAY CODES

Red LED's

        OH      Off Hook
        RD      Receiving Data
        SD      Sending Data
        TR      Terminal Ready (Follows DTR per &Dn setting)

Green LED Display PANEL

        AA      Auto Answer (RI displayed during ring)
        CD      Carrier Detected
        DC      Data Compression in use
        DI      Dialing
        FX      FAX MODE
        LP      LAPM Error Correction in use.
        M2      MNP2 Error Correction in use.
        M3      MNP3 Error Correction in use.
        M4      MNP4 Error Correction in use.
        M5      MNP5 Data Compression in use.
        OK      Modem Powered Up Correctly and Ready for Use.
        RE      Receive Error while using LAPM or MNP mode.
        RI      Ring Indicator
        RT      Retrain in progress
        TE      Transmit Error while using LPAM or MNP mode.
        TM      Test Mode in use.
        3       300 bps connection
        12      1200 bps connection
        24      2400 bps connection
        48      4800 bps connection
        72      7200 bps connection
        96      9600 bps connection
        120     12000 bps connection
        144     14400 bps connection