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       # MAXTECH CORPORATION
       
          XPVS288R9 (SF-1128HV/R9)
       
          Card Type              Modem, Fax                              
          Chip Set               Unidentified                            
          I/O Options            Line in, line out, microphone in,       
                                 speaker out                             
          Maximum Modem Rate     28.8Kbps                                
          Maximum Fax Rate       14.4Kbps                                
          Data Modulation        Bell 103/212A                           
          Protocol                                                       
                                 ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                                 V.32bis, V.34                           
          Fax Modulation         ITU-T V.17, V.27ter, V.29               
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Class I & II                            
          Data Bus               16-bit ISA                              
          Card Size              Half-length, full-height card           
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |       Function       | Label  |   Function    |   Label    |
          |------------------------------------------------------------|
          | Line out                 |   CN1    | Microphone in | CN3  |
          |--------------------------+----------+---------------+------|
          | Line in                  |   CN2    | Speaker out   | CN4  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |            Setting            | Label  |     Position      |
          |-------------------------------+--------+-------------------|
          | Microphone set for dynamic    |  JP2   | Pins 1 & 2 closed |
          |-------------------------------+--------+-------------------|
          | Microphone set for condenser  |  JP2   | Pins 2 & 3 closed |
          |-------------------------------+--------+-------------------|
          | Speaker set for stereo        |  JP4   |      Closed       |
          |-------------------------------+--------+-------------------|
          | Speaker set for mono          |  JP4   |       Open        |
          |-------------------------------+--------+-------------------|
          | í Plug and Play enabled       |  PNP1  |      Closed       |
          |-------------------------------+--------+-------------------|
          | Plug and Play disabled        |  PNP1  |       Open        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |    Setting    |     PNP1      |    SW1/1     |    SW1/2    |
          |---------------+---------------+--------------+-------------|
          |  COM1 (3F8h)  |     Open      |      On      |     On      |
          |---------------+---------------+--------------+-------------|
          |  COM2 (2F8h)  |     Open      |     Off      |     On      |
          |---------------+---------------+--------------+-------------|
          |  COM3 (3E8h)  |     Open      |      On      |     Off     |
          |---------------+---------------+--------------+-------------|
          |  COM4 (2E8h)  |     Open      |     Off      |     Off     |
          |---------------+---------------+--------------+-------------|
          |     í PnP     |    Closed     |     Off      |     Off     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        IRQ SETTINGS                        |
          |------------------------------------------------------------|
          |  Setting  |   PNP1   |  SW1/3  |  SW1/4  | SW1/5  | SW1/6  |
          |-----------+----------+---------+---------+--------+--------|
          |    2/9    |   Open   |   On    |   Off   |  Off   |  Off   |
          |-----------+----------+---------+---------+--------+--------|
          |     3     |   Open   |   Off   |   On    |  Off   |  Off   |
          |-----------+----------+---------+---------+--------+--------|
          |     4     |   Open   |   Off   |   Off   |   On   |  Off   |
          |-----------+----------+---------+---------+--------+--------|
          |     5     |   Open   |   Off   |   Off   |  Off   |   On   |
          |-----------+----------+---------+---------+--------+--------|
          |   í PnP   |  Closed  |   Off   |   Off   |  Off   |  Off   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, A/                                              |
          |------------------------------------------------------------|
          | A, E, H, M, O, P, T, V, X, Y, Z                            |
          |------------------------------------------------------------|
          | &C, &G, &L, &T, &V, &W, &Y, &Z                             |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | \A, \B, \C, \E, \G, \J, \K, \O, \Q, \U, \X, \Y, \Z         |
          |------------------------------------------------------------|
          | %A                                                         |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12,     |
          | S14, S16, S18, S21, S22, S23, S25, S26,                    |
          |------------------------------------------------------------|
          | S27                                                        |
          |------------------------------------------------------------|
          |                      Special Commands                      |
          |------------------------------------------------------------|
          | #BDR, #CLS, #MDL?, #MFR?, #REV?, #SPK=a,b,c, #VBQ?, #VBS,  |
          | #VBT, #VCI?, #VLS, #VRA, #VRN,                             |
          |------------------------------------------------------------|
          | #VRX, #VSD, #VSK, #VSP, #VSR, #VSS, #VTD, #VTS, #VTX       |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            Proprietary AT Command Set
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode                 |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |    í &M0     | Asynchronous mode                           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  COMMUNICATION PROTOCOLS                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Bn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Selects the communication protocol for data |
          |              | calls                                       |
          |------------------------------------------------------------|
          |      Note: The B command allows the simultaneous selection |
          |      of more than one suffix, enabling multiple protocols. |
          |------------------------------------------------------------|
          |   Command    |                  Protocol                   |
          |--------------+---------------------------------------------|
          |      B0      | Enables CCITT mode                          |
          |--------------+---------------------------------------------|
          |      B1      | Enables Bell mode                           |
          |--------------+---------------------------------------------|
          |      B2      | Enables Autoscan mode                       |
          |--------------+---------------------------------------------|
          |      B3      | Enables CCITT V.23 mode only                |
          |--------------+---------------------------------------------|
          |      B4      | Enables 300 bps connection only             |
          |--------------+---------------------------------------------|
          |      B5      | Enables 1200 bps connection only            |
          |--------------+---------------------------------------------|
          |      B6      | Enables 2400 bps connection only            |
          |--------------+---------------------------------------------|
          |      B7      | Enables 4800 bps connection only            |
          |--------------+---------------------------------------------|
          |      B8      | Enables 9600 bps connection only            |
          |--------------+---------------------------------------------|
          |      B9      | Enables 14400 bps connection only           |
          |--------------+---------------------------------------------|
          |     B10      | Enables 16800 bps connection only           |
          |--------------+---------------------------------------------|
          |     B11      | Enables 19200 bps connection only           |
          |--------------+---------------------------------------------|
          |     B12      | Enables 21600 bps connection only           |
          |--------------+---------------------------------------------|
          |     B13      | Enables 24000 bps connection only           |
          |--------------+---------------------------------------------|
          |     B14      | Enables 26400 bps connection only           |
          |--------------+---------------------------------------------|
          |     B15      | Enables 28800 bps connection only           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          | í Command 0  | Modem does not respond to DTR               |
          |--------------+---------------------------------------------|
          |  Command 1   | Modem goes to command mode after DTR goes   |
          |              | is off                                      |
          |--------------+---------------------------------------------|
          |  Command 2   | Modem goes to command mode and disconnects  |
          |              | (hangs up) after DTR goes off; Auto-Answer  |
          |              | is disabled.                                |
          |--------------+---------------------------------------------|
          |  Command 3   | Modem is initialized after DTR goes off     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DIAL                            |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] D<#> [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Dials telephone number according to any     |
          |              | modifiers included in the string            |
          |--------------+---------------------------------------------|
          | Note:        | Any combination of modifiers can be used to |
          |              | produce the desired dial functions in       |
          |              | sequence.                                   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      DP      | Pulse dialing enabled                       |
          |--------------+---------------------------------------------|
          |      DR      | Answer mode enabled; originate mode         |
          |              | disabled following handshake initiation.    |
          |--------------+---------------------------------------------|
          |      DT      | Tone dialing enabled/Pulse dialing disabled |
          |--------------+---------------------------------------------|
          |      DW      | Dialing resumed following dial tone         |
          |              | detection                                   |
          |--------------+---------------------------------------------|
          |      D,      | Dialing paused for amount of time specified |
          |              | in S8 register                              |
          |--------------+---------------------------------------------|
          |      D!      | Flash function initiated. Modem commanded   |
          |              | to go off-hook for specified time before    |
          |              | returning on-hook.                          |
          |--------------+---------------------------------------------|
          |      D@      | Wait for Quite Answer function enabled.     |
          |              | Modem waits until a "quiet answer," a       |
          |              | ring-back signal followed by silence up to  |
          |              | the time specified in S7, is received prior |
          |              | to executing the rest of the dial string.   |
          |--------------+---------------------------------------------|
          |      D;      | Modem returned to idle state after dialing. |
          |              | The semicolon can only be placed at the end |
          |              | of the dial command.                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &S0      | DSR forced high                             |
          |--------------+---------------------------------------------|
          |    í &S1     | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      FACTORY DEFAULT                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Fn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Recalls factory default configuration       |
          |              | and/or with software flow control enabled   |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &F0     | Recalls factory default configuration       |
          |--------------+---------------------------------------------|
          |     &F1      | Recalls factory default configuration with  |
          |              | software flow control enabled               |
          |--------------+---------------------------------------------|
          |     &F2      | Recalls factory default configuration with  |
          |              | hardware flow control enabled               |
          |--------------+---------------------------------------------|
          |     &F3      | Recalls factory default configuration with  |
          |              | software flow control enabled and ignores   |
          |              | the DTR signal                              |
          |--------------+---------------------------------------------|
          |     &F4      | Recalls factory default configuration with  |
          |              | hardware flow control enabled and ignores   |
          |              | the DTR signal                              |
          |--------------+---------------------------------------------|
          |     &F5      | Set modem to Direct mode                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   FALL FORWARD/FALL BACK                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/Disables fall forward/fall back     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &E0     | Disables automatic fall forward/fall back   |
          |--------------+---------------------------------------------|
          |     &E1      | Enables automatic fall forward/fallback     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            HELP                            |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &H [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays the modem help screen              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       ORIGINATE MODE                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &On [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/Disables originate-only mode        |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |    í &O0     | Originate-only mode disabled                |
          |--------------+---------------------------------------------|
          |     &O1      | Originate-only mode enabled                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    PULSE DIALING RATIO                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects pulse dial make/break ratio         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í &P0     | 39/61ms at 10pps (North America)            |
          |--------------+---------------------------------------------|
          |     &P1      | 33/67ms at 10pps (Europe & Hong Kong)       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested and          |
          |              | configures Plug and Play serial number      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports product ID                          |
          |--------------+---------------------------------------------|
          |      I1      | Reports ROM checksum                        |
          |--------------+---------------------------------------------|
          |      I2      | Tests and reports internal memory           |
          |--------------+---------------------------------------------|
          |      I3      | Reports V.42bis ID                          |
          |--------------+---------------------------------------------|
          |      I4      | Reports internal ID                         |
          |--------------+---------------------------------------------|
          |    I99=n     | Configures Plug and Play serial number to n |
          |              | (n = 0-225)                                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        RESULT CODES                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Qn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables modem to send result codes to the   |
          |              | DTE                                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í Q0     | Result code sending enabled                 |
          |--------------+---------------------------------------------|
          |      Q1      | Result code sending disabled                |
          |--------------+---------------------------------------------|
          |      Q2      | Result code sending disabled only when      |
          |              | answer mode is enabled                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       SPEAKER VOLUME                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Ln [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Controls speaker volume                     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      L0      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |      L1      | Low volume setting                          |
          |--------------+---------------------------------------------|
          |     í L2     | Medium volume setting                       |
          |--------------+---------------------------------------------|
          |      L3      | Highest volume setting                      |
          +------------------------------------------------------------+
       
                             Extended AT Command Set
       
          +------------------------------------------------------------+
          |         AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %En [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls auto-retrain mode and              |
          |              | fallback/fall-forward                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %E0      | Auto-retrain disabled                       |
          |--------------+---------------------------------------------|
          |    í %E1     | Auto-retrain enabled                        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    AUTO-DETECT SETTINGS                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Mn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls V.34 and V.FC while in auto-detect |
          |              | mode                                        |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %M0     | Sets V.34 and V.FC to auto-detect mode      |
          |--------------+---------------------------------------------|
          |     %M1      | Sets only V.34 to auto-detect               |
          |--------------+---------------------------------------------|
          |     %M2      | Sets only V.FC to auto-detect               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CLEAR-DOWN SIGNAL                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/Disables clear-down signal          |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %D0      | Clear-down signal disabled                  |
          |--------------+---------------------------------------------|
          |    í %D1     | Clear-down signal enabled                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   COMPRESSION/CORRECTION                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression and correction     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     %C0      | Data compression and correction disabled    |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 and V.42bis; or data compression and   |
          |              | correction enabled                          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        CONNECT MODE                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Nn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Controls the type of connection the modem   |
          |              | will operate in                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \N0      | Normal mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N1      | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | MNP reliable mode enabled                   |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode or MNP auto-reliable     |
          |              | mode enabled                                |
          |--------------+---------------------------------------------|
          |     \N4      | V.42 reliable mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N5      | V.42 auto-reliable mode or MNP              |
          |              | auto-reliable mode enabled                  |
          |--------------+---------------------------------------------|
          |     \N6      | V.42/MNP/Normal data link enabled           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DCE                             |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Vn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Reports DCE speed and extended responses    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í  \V0    | Reports DCE speed without sending extended  |
          |              | responses                                   |
          |--------------+---------------------------------------------|
          |     \V1      | Reports DCE speed and send sends extended   |
          |              | responses                                   |
          |--------------+---------------------------------------------|
          |     \V2      | Reports DTE speed without sending extended  |
          |              | responses                                   |
          |--------------+---------------------------------------------|
          |     \V3      | Reports DTE speed and send sends extended   |
          |              | responses                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Range:       | 0-90                                        |
          |--------------+---------------------------------------------|
          | Unit:        | 1 minute                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     LINE SIGNAL LEVEL                      |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Ln [cmds]                        |
          |--------------+---------------------------------------------|
          | Default:     | 11                                          |
          |--------------+---------------------------------------------|
          | Range:       | 0-15                                        |
          |--------------+---------------------------------------------|
          | Unit:        | dBm                                         |
          |--------------+---------------------------------------------|
          | Description: | Returns a value which indicates the         |
          |              | received line signal level                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          PASSWORD                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \P=x [cmds]                       |
          |--------------+---------------------------------------------|
          | Description: | Stores password x (x=ASCII characters 1     |
          |              | through 127 excluding "?" maximum 7         |
          |              | characters) stored into non-volatile RAM    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   POWER-ON AUTO-CONNECT                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/Disables power-on auto-connect      |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í  %P0    | Power-on auto-connect disabled              |
          |--------------+---------------------------------------------|
          |     %P1      | Power-on auto-connect enabled               |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                          SECURITY                          |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/Disables call-back security and     |
          |              | checks password                             |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í  %S0    | Call-back security disabled                 |
          |--------------+---------------------------------------------|
          |     %S1      | Password check enabled                      |
          |--------------+---------------------------------------------|
          |     %S2      | Call-back security and password check       |
          |              | enabled                                     |
          +------------------------------------------------------------+
       
                               S(status) -Registers
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S28                   |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S28=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | Configures Power-on auto-connect, security  |
          |              | call-back, auto-retrain, and Bell/CCITT     |
          |              | mode settings                               |
          +------------------------------------------------------------+