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       # ACEEX CORPORATION
       
          DM-2814VH (INTERNAL)
       
          Card Type              Modem                                   
          Chip Set               Unidentified                            
          I/O Options            Line out, line in                       
          Maximum Modem Rate     33.6Kbps                                
          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, V.34+                    
          Fax Modulation         ITU-T V.17, V.21 CH2, V.27ter, V.29     
          Protocol               
          Error                  MNP5, V.42, V.42bis                     
          Correction/Compression 
          Fax Class              Unidentified                            
          Data Bus               8-bit ISA                               
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |     Function      |  Label  |    Function    |    Label    |
          |------------------------------------------------------------|
          | Line out (RJ-11)        |   CN1   | Line in (RJ-11) | CN2  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    SERIAL PORT ADDRESS                     |
          |------------------------------------------------------------|
          |      Setting       |   J1    |   J2    |   J3    |   J4    |
          |--------------------+---------+---------+---------+---------|
          |   í COM1 (3F8h)    | Closed  | Closed  |  Open   |  Open   |
          |--------------------+---------+---------+---------+---------|
          |    COM2 (2F8h)     | Closed  |  Open   |  Open   | Closed  |
          |--------------------+---------+---------+---------+---------|
          |    COM3 (3E8h)     |  Open   | Closed  | Closed  |  Open   |
          |--------------------+---------+---------+---------+---------|
          |    COM4 (2E8h)     |  Open   |  Open   | Closed  | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    INTERRUPT SELECTION                     |
          |------------------------------------------------------------|
          |       IRQ       |    J5    |    J6    |   J7    |    J8    |
          |-----------------+----------+----------+---------+----------|
          |        2        |  Closed  |   Open   |  Open   |   Open   |
          |-----------------+----------+----------+---------+----------|
          |       í 3       |   Open   |  Closed  |  Open   |   Open   |
          |-----------------+----------+----------+---------+----------|
          |        4        |   Open   |   Open   | Closed  |   Open   |
          |-----------------+----------+----------+---------+----------|
          |        5        |   Open   |   Open   |  Open   |  Closed  |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                   SUPPORTED COMMAND SET                    |
          |------------------------------------------------------------|
          |                     Basic AT Commands                      |
          |------------------------------------------------------------|
          | AT, ‘+++’, A/                                              |
          |------------------------------------------------------------|
          | A, C, E, H, M, O, Q, V, X, Y, Z                            |
          |------------------------------------------------------------|
          | &C, &G, &L, &M, &R, &T, &V, &W, &X, &Y, &Z                 |
          |------------------------------------------------------------|
          |                    Extended AT Commands                    |
          |------------------------------------------------------------|
          | %A                                                         |
          |------------------------------------------------------------|
          | \A, \B,\G, \J, \V, \X                                      |
          |------------------------------------------------------------|
          |                        S Registers                         |
          |------------------------------------------------------------|
          | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9,S10, S11, S12, S14, |
          | S16, S18, S21, S22, S23, S25                               |
          |------------------------------------------------------------|
          | S26, S27, S28, S40, S41, S95                               |
          |------------------------------------------------------------|
          | Note: See MHI Help File for full command documentation.    |
          +------------------------------------------------------------+
       
                            PROPRIETARY AT COMMAND SET
       
          +------------------------------------------------------------+
          |                  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                   |
          |--------------+---------------------------------------------|
          |     í B0     | ITU-T V.34bis, V.32ter, V.32bis, V.32,      |
          |              | V.22bis, V.22, V.21                         |
          |--------------+---------------------------------------------|
          |      B1      | Bell 212A/103                               |
          |--------------+---------------------------------------------|
          |      B2      | ITU-T V.23 at 1200Kbps                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    COMMUNICATIONS MODE                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects communications mode options         |
          |--------------+---------------------------------------------|
          |   Command    |                    Mode                     |
          |--------------+---------------------------------------------|
          |     &Q0      | Asynchronous mode, serial port speed        |
          |              | follows connect speed.                      |
          |--------------+---------------------------------------------|
          |     &Q1      | Asynchronous off-line command mode and      |
          |              | synchronous connect mode.                   |
          |--------------+---------------------------------------------|
          |     &Q2      | Asynchronous off-line command mode - modem  |
          |              | autodials first number in directory, then   |
          |              | synchronous connect mode.                   |
          |--------------+---------------------------------------------|
          |     &Q3      | Asynchronous off-line command mode on low   |
          |              | DTR, synchronous connect mode on high DTR.  |
          |--------------+---------------------------------------------|
          |    í &Q5     | Error correction mode                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    DATA SET READY (DSR)                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Sn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects DSR options                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &S0      | DSR forced high                             |
          |--------------+---------------------------------------------|
          |     &S1      | DSR high only while modem is handshaking or |
          |              | connected                                   |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                 DATA TERMINAL READY (DTR)                  |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Dn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects modem response to DTR               |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &D0      | DTR ignored                                 |
          |--------------+---------------------------------------------|
          |     &D1      | DTR toggle causes online command mode       |
          |--------------+---------------------------------------------|
          |    í &D2     | DTR toggle causes modem to go on-hook       |
          |--------------+---------------------------------------------|
          |     &D3      | Modem reset on DTR toggle                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       DCE LINE SPEED                       |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] &N [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets the maximum allowable data exchange    |
          |              | rate attempted during handshake process.    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &N0      | Attempt to connect at speed of last AT      |
          |              | command                                     |
          |--------------+---------------------------------------------|
          |     &N1      | 300bps                                      |
          |--------------+---------------------------------------------|
          |     &N2      | 1200bps                                     |
          |--------------+---------------------------------------------|
          |     &N3      | 2400bps                                     |
          |--------------+---------------------------------------------|
          |     &N4      | 4800bps                                     |
          |--------------+---------------------------------------------|
          |     &N5      | 7200bps                                     |
          |--------------+---------------------------------------------|
          |     &N6      | 9600bps                                     |
          |--------------+---------------------------------------------|
          |     &N7      | 12.0Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N8      | 14.4Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N9      | 16.8Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N10     | 19.2Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N11     | 21.6Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N12     | 24.0Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N13     | 26.4Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N14     | 28.8Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N15     | 31.2Kbps                                    |
          |--------------+---------------------------------------------|
          |     &N16     | 33.6Kbps                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            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.    |
          |--------------+---------------------------------------------|
          |     DS=n     | Dial stored telephone number n              |
          |--------------+---------------------------------------------|
          |      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.                        |
          +------------------------------------------------------------+
       
                                         
       
          +------------------------------------------------------------+
          |                   EXTENDED RESULT CODES                    |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] Wn [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Enables selection of additional result      |
          |              | codes                                       |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     í W0     | Disables V.42 extended responses            |
          |--------------+---------------------------------------------|
          |      W1      | Enables V.42 extended responses             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FACTORY DEFAULT PROFILE                   |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &F [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Sets values in active profile to values     |
          |              | found in the default profile                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &F0      | Load factory settings with V.42 error       |
          |              | correction                                  |
          |--------------+---------------------------------------------|
          |     &F1      | Load factory settings with MNP5 error       |
          |              | correction                                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        FLOW CONTROL                        |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Kn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables flow control options                |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &K0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     &K1      | RTS to CTS flow control enabled             |
          |--------------+---------------------------------------------|
          |     &K2      | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |    í &K3     | RTS/CTS flow control enabled                |
          |--------------+---------------------------------------------|
          |     &K4      | XON/XOFF flow control enabled               |
          |--------------+---------------------------------------------|
          |     &K5      | Transparent XON/XOFF flow control enabled   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    PULSE DIALING RATIO                     |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] &Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects pulse dial make/break ratio         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     &P0      | 39/61ms at 10pps (North America)            |
          |--------------+---------------------------------------------|
          |    í &P1     | 33/67ms at 10pps (Europe)                   |
          |--------------+---------------------------------------------|
          |     &P2      | 33/67ms at 20pps (Japan)                    |
          |--------------+---------------------------------------------|
          |     &P3      | 33/67ms at 10pps; nine-pulse mean digit 1   |
          |              | (New Zealand)                               |
          |--------------+---------------------------------------------|
          |     &P4      | 33/67ms at 10pps; two-pulse mean digit 1    |
          |              | (Sweden)                                    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     REPORT INFORMATION                     |
          |------------------------------------------------------------|
          | Type:        | Immediate                                   |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] In [cmds]                         |
          |--------------+---------------------------------------------|
          | Description: | Displays information requested              |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |      I0      | Reports product ID code                     |
          |--------------+---------------------------------------------|
          |      I1      | Reports ROM checksum                        |
          |--------------+---------------------------------------------|
          |      I2      | Tests and reports ROM checksum              |
          |--------------+---------------------------------------------|
          |      I6      | Reports firmware version ID code            |
          +------------------------------------------------------------+
       
           
       
          +------------------------------------------------------------+
          |                       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
       
          +------------------------------------------------------------+
          |                        COMPRESSION                         |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Cn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Selects data compression                    |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %C0     | Data compression disabled                   |
          |--------------+---------------------------------------------|
          |     %C1      | MNP5 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                         |
          |--------------+---------------------------------------------|
          |    í \N1     | Direct mode enabled                         |
          |--------------+---------------------------------------------|
          |     \N2      | Reliable mode enabled                       |
          |--------------+---------------------------------------------|
          |     \N3      | Auto-reliable mode enabled                  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     FLOW CONTROL TYPE                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Qn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Sets type of flow control used by modem     |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |     \Q0      | Flow control disabled                       |
          |--------------+---------------------------------------------|
          |     \Q1      | Bi-directional XON/XOFF flow control        |
          |              | enabled                                     |
          |--------------+---------------------------------------------|
          |    í \Q2     | CTS flow control by DCE enabled             |
          |--------------+---------------------------------------------|
          |     \Q3      | Bi-directional RTS/CTS flow control enabled |
          +------------------------------------------------------------+
       
                                         
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] \Tn [cmds]                        |
          |--------------+---------------------------------------------|
          | Range:       | 0-90                                        |
          |--------------+---------------------------------------------|
          | Default:     | 0                                           |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      POWER-UP CALLING                      |
          |------------------------------------------------------------|
          | Type:        | Configuration                               |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] %Pn [cmds]                        |
          |--------------+---------------------------------------------|
          | Description: | Enables/disables power-up leased line and   |
          |              | telephon number calling function            |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    í %P0     | Power-up leased line and telephone number   |
          |              | calling function disabled                   |
          |--------------+---------------------------------------------|
          |     %P1      | Power-up leased line and telephone number   |
          |              | calling function enabled                    |
          +------------------------------------------------------------+
       
                               S(status) -REGISTERS
       
          +------------------------------------------------------------+
          |              AUTO-RELIABLE FALLBACK CHARACTER              |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S37=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-127                                       |
          |--------------+---------------------------------------------|
          | Unit:        | ASCII                                       |
          |--------------+---------------------------------------------|
          | Description: | Sets the character used as the              |
          |              | auto-reliable fallback character; S37=0     |
          |              | will disable this function.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       BREAK OPTIONS                        |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S82=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Sets the method for break transmission      |
          |              | during error-control and ASB connections.   |
          |------------------------------------------------------------|
          |  Command   |                   Function                    |
          |------------+-----------------------------------------------|
          |   S82=3    | Expedited signaling, immediately send timed   |
          |            | break                                         |
          |------------+-----------------------------------------------|
          |   S82=7    | Destructive signaling, buffers cleared,       |
          |            | immediately send timed break                  |
          |------------+-----------------------------------------------|
          |  S82=128   | In-sequence signaling, timed break sent in    |
          |            | sequence with transmitted data                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  BIT-MAPPED REGISTER S38                   |
          |------------------------------------------------------------|
          | Format       | AT [cmds] S38=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Unit:        | Bit-mapped                                  |
          |--------------+---------------------------------------------|
          | Description: | For MNP operation. Further information is   |
          |              | unavailable                                 |
          +------------------------------------------------------------+
       
                                         
       
          +------------------------------------------------------------+
          |                ERROR CORRECTION NEGOTIATION                |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format       | AT [cmds] S36=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects the action of the modem if it fails |
          |              | to connect with the error-correction        |
          |              | protocol set in &Q.                         |
          |--------------+---------------------------------------------|
          |   Command    |                  Function                   |
          |--------------+---------------------------------------------|
          |    S36=0     | Hang up                                     |
          |--------------+---------------------------------------------|
          |    S36=1     | Attempt a connection at MNP2-5; if that     |
          |              | fails, attempt a direct connection.         |
          |--------------+---------------------------------------------|
          |    S36=3     | Attempt a buffered connection               |
          |--------------+---------------------------------------------|
          |    S36=4     | Attempt a connection at MNP2-5; if that     |
          |              | fails, hang up.                             |
          |--------------+---------------------------------------------|
          |    S36=5     | Attempt a connection at MNP2-5; if that     |
          |              | fails, attempt a direct connection.         |
          |--------------+---------------------------------------------|
          |    S36=7     | Attempt a connection at MNP2-5; if that     |
          |              | fails, attempt a buffered connection.       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                ERROR CORRECTION/COMPRESSION                |
          |------------------------------------------------------------|
          | Type:                        | Register                    |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S46=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects active error correction and         |
          |              | compression protocols                       |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |    S46=136    | LAP-M only, no compression                 |
          |---------------+--------------------------------------------|
          |    S46=138    | LAP-M with V.42bis data compression        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FEATURE NEGOTIATION OPTIONS                 |
          |------------------------------------------------------------|
          | Type:                          | Register                  |
          |------------------------------------------------------------|
          | Format:      | AT [cmds] S48=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Description: | Selects active error correction and         |
          |              | compression protocols                       |
          |------------------------------------------------------------|
          |    Command    |                  Function                  |
          |---------------+--------------------------------------------|
          |     S48=0     | Detection negotiation disabled, XID        |
          |               | negotiation disabled                       |
          |---------------+--------------------------------------------|
          |     S48=3     | Detection negotiation and XID negotiation  |
          |               | enabled                                    |
          |---------------+--------------------------------------------|
          |     S48=7     | Detection negotiation and XID negotiation  |
          |               | enabled                                    |
          |---------------+--------------------------------------------|
          |    S48=128    | Fall-back to options set in S36            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INACTIVITY TIMER                      |
          |------------------------------------------------------------|
          | Type:        | Register                                    |
          |--------------+---------------------------------------------|
          | Format:      | AT [cmds] S39=n [cmds]                      |
          |--------------+---------------------------------------------|
          | Range:       | 0-255                                       |
          |--------------+---------------------------------------------|
          | Unit:        | 1 second                                    |
          |--------------+---------------------------------------------|
          | Description: | Sets the length of time that the modem does |
          |              | not receive information before it           |
          |              | disconnects; S39=0 will disable.            |
          +------------------------------------------------------------+