PHILIPS CONSUMER ELECTRONICS, CO. ================================= PCA14EM (USA) Card Type Modem Chip Set Unidentified I/O Options Line out, line in, 25-pin DTE port, power Maximum Modem Rate 57.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Bell 103/212A Protocol ITU-T V.22, V.22bis, V.32, V.32bis 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 External +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Function | Label | Function | Label | |------------------------------------------------------------| | Line out (RJ-11) | CN1 | Power | CN4 | |----------------------------+---------+--------------+------| | Line in (RJ-11) | CN2 | Power switch | SW1 | |----------------------------+---------+--------------+------| | 25-pin DTE port | CN3 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |-----+------------------+-----------+-----------------------| | MR | Unidentified | On | Power is on | |-----+------------------+-----------+-----------------------| | MR | Unidentified | Off | Power is off | |-----+------------------+-----------+-----------------------| | TR | Unidentified | On | DTR signal is high | |-----+------------------+-----------+-----------------------| | TR | Unidentified | Off | DTR signal is low | |------------------------------------------------------------| | SD | Unidentified | On | Modem is | | | | | transmitting data | |-------------+-----------------+-----+----------------------| | SD | Unidentified | Off | Modem is not | | | | | transmitting data | |-------------+-----------------+-----+----------------------| | RD | Unidentified | On | Modem is receiving | | | | | data | |-------------+-----------------+-----+----------------------| | RD | Unidentified | Off | Modem is not | | | | | receiving data | |-------------+-----------------+-----+----------------------| | OH | Unidentified | On | Modem is off hook | |-------------+-----------------+-----+----------------------| | OH | Unidentified | Off | Modem is on hook | |------------------------------------------------------------| | CD | Unidentified | On | Carrier signal | | | | | detected or error | | | | | correction | | | | | negotiation completed | |-----+------------------+-----------+-----------------------| | CD | Unidentified | Off | Carrier signal not | | | | | detected | |-----+------------------+-----------+-----------------------| | AA | Unidentified | On | Auto-answer enabled | |-----+------------------+-----------+-----------------------| | AA | Unidentified | Off | Auto-answer disabled | |-----+------------------+-----------+-----------------------| | AA | Unidentified | Blinking | Incoming ring | | | | | detected | |-----+------------------+-----------+-----------------------| | HS | Unidentified | On | Mdem is connected at | | | | | 14.4Kbps | |-----+------------------+-----------+-----------------------| | HS | Unidentified | Off | Modem is not | | | | | connected or | | | | | connected at speed | | | | | lower than 14.4Kbps | |-----+------------------+-----------+-----------------------| | TST | Unidentified | On | Normal operation; no | | | | | error detected | |-----+------------------+-----------+-----------------------| | TST | Unidentified | Off | Error detected and | | | | | corrected | +------------------------------------------------------------+ +------------------------------------------------------------+ | SUPPORTED COMMAND SET | |------------------------------------------------------------| | Basic AT Commands | |------------------------------------------------------------| | AT, '+++', A/ | |------------------------------------------------------------| | A, E, H, M, P, T, V, X, Y, Z | |------------------------------------------------------------| | &C, &G, &M, &R, &T, &V, &W, &X, &Y, &Z | |------------------------------------------------------------| | Extended AT Commands | |------------------------------------------------------------| | %A, %C | |------------------------------------------------------------| | \A, \B, \C, \E, \G, \J, \K, \O, \Q, \T, \U, \X, \Y, \Z | |------------------------------------------------------------| | S Registers | |------------------------------------------------------------| | S0, S1, S2, S3, S4, S5, S6, S7, S8, S9,S10, S11, S12, S18, | | S25, S26 | |------------------------------------------------------------| | | |------------------------------------------------------------| | Note: See MHI Help File for full command documentation. | +------------------------------------------------------------+ PROPRIETARY AT COMMAND SET +------------------------------------------------------------+ | AUTO-FALLBACK/FALL-FORWARD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Description: | Controls fallback/fall-forward | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &E0 | Auto-fallback/fall-forward disabled | |--------------+---------------------------------------------| | &E1 | Auto-fallback/fall-forward enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMUNICATION PROTOCOLS | |------------------------------------------------------------| | Type: | Configuration | |----------------------------+-------------------------------| | Format: | AT [cmds] Bn [cmds] | |----------------------------+-------------------------------| | Description: | Selects the communication | | | protocol for data calls | |------------------------------------------------------------| | Command | Speed(s) | Mode(s) | |-----------+-----------------------------+------------------| | B0 | 300bps | V.21 | | | | | | | 1200bps | V.22 | | | | | | | 2400bps | V.22bis, V.22, | | | | Bell 212A | | | 4800bps, 9600bps | | | | | V.32, V.22bis, | | | 14.4kbps | V.22, Bell 212A | | | | | | | 19.2Kbps,28.8Kbps,38.4Kbps, | V.32bis, V.32, | | | | V.22bis, V.22, | | | 57.6kbps | Bell 212A | | | | | | | | V.32bis, V.32, | | | | V.22bis, V.22, | | | | Bell 212A | |-----------+-----------------------------+------------------| | >> B1 | 300bps | Bell 103 | | | | | | | 1200bps | Bell 212A | | | | | | | 2400bps | V.22bis, V.22, | | | | Bell 212A | | | 4800bps, 9600bps | | | | | V.32, V.22bis, | | | 14.4kbps | V.22, Bell 212A | | | | | | | 19.2Kbps,28.8Kbps,38.4Kbps, | V.32bis, V.32, | | | | V.22bis, V.22, | | | 57.6kbps | Bell 212A | | | | | | | | V.32bis, V.32, | | | | V.22bis, V.22, | | | | Bell 212A | |-----------+-----------------------------+------------------| | B2 | Any speed | V.32bis, V.32, | | | | V.22bis, V.22, | | | | Bell 212A | |-----------+-----------------------------+------------------| | B3 | Any speed | V.23 | |-----------+-----------------------------+------------------| | B4 | Any speed | V.21 at 300bps | |-----------+-----------------------------+------------------| | B5 | Any speed | V.22 at 1200bps | |-----------+-----------------------------+------------------| | B6 | Any speed | V.22bis at | | | | 2400bps | |-----------+-----------------------------+------------------| | B7 | Any speed | V.32 at 4800bps | |-----------+-----------------------------+------------------| | B8 | Any speed | V.32 at 9600bps | |-----------+-----------------------------+------------------| | B9 | Any speed | V.32bis at | | | | 14.4kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | DATA SET READY (DSR) | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Sn [cmds] | |--------------+---------------------------------------------| | Description: | Selects DSR options | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &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 | |--------------+---------------------------------------------| | i &D2 | DTR toggle causes modem to go on-hook | |--------------+---------------------------------------------| | &D3 | Modem reset on DTR toggle | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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@ | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | i &F0 | Recalls factory defaults with V.42bis error | | | correction and hardware flow control | | | enabled | |--------------+---------------------------------------------| | &F1 | Recalls factory defaults with software flow | | | control enabled | |--------------+---------------------------------------------| | &F2 | Recalls factory defaults with V.42bis error | | | correction and hardware flow control | | | enabled | |--------------+---------------------------------------------| | &F3 | Recalls factory defaults with software flow | | | control enabled. DTR ignored | |--------------+---------------------------------------------| | &F4 | Recalls factory defaults with V.42bis error | | | correction and hardware flow control | | | enabled. DTR ignored | |--------------+---------------------------------------------| | &F5 | Recalls factory defaults with V.42bis error | | | correction and hardware flow control | | | disabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP SCREEN | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] &Hn [cmds] | |--------------+---------------------------------------------| | Description: | Displays Help screens on all available | | | commands | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Ln [cmds] | |--------------+---------------------------------------------| | Description: | Selects line type | |--------------+---------------------------------------------| | Command | Line Type | |--------------+---------------------------------------------| | i &L0 | Switched line (PSTN/Dial-up) | |--------------+---------------------------------------------| | &L1 | Leased line | |--------------+---------------------------------------------| | &L2 | Power-on leased line | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON-LINE | |------------------------------------------------------------| | Type: | Immediate | |---------------+--------------------------------------------| | Format: | AT [cmds] On [cmds] | |---------------+--------------------------------------------| | Description: | Controls on-line command (data | | | transmission) state options. | |------------------------------------------------------------| | Note: The O command must be placed at the end of the | | command string. | |------------------------------------------------------------| | Command | Function | |---------------+--------------------------------------------| | O0 | On-line command mode with no retraining | | | enabled | |---------------+--------------------------------------------| | O1 | On-line command mode with retraining | | | enabled | |---------------+--------------------------------------------| | O2 | On-line command mode with retraining and | | | fall-forward enabled | |---------------+--------------------------------------------| | O3 | On-line command mode with retraining and | | | fall-back enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | ORIGINATE-ONLY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &On [cmds] | |--------------+---------------------------------------------| | Description: | Enable/disable originate-only mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &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 | |--------------+---------------------------------------------| | i &P0 | 39/61ms at 10pps (North America) | |--------------+---------------------------------------------| | &P1 | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| | I3 | Reports modem's V.42bis ID | |--------------+---------------------------------------------| | I4 | Reports modem's internal ID | +------------------------------------------------------------+ +------------------------------------------------------------+ | RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Qn [cmds] | |--------------+---------------------------------------------| | Description: | Enables modem to send result codes to the | | | DTE | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | Q0 | Result code sending enabled | |--------------+---------------------------------------------| | Q1 | Result code sending disabled | |--------------+---------------------------------------------| | Q2 | Result code sending enabled in originate | | | mode | +------------------------------------------------------------+ EXTENDED AT COMMAND SET +------------------------------------------------------------+ | SPEAKER VOLUME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] Ln [cmds] | |--------------+---------------------------------------------| | Description: | Controls speaker volume | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | L0 | Low volume setting | |--------------+---------------------------------------------| | L1 | Low volume setting | |--------------+---------------------------------------------| | i L2 | Medium volume setting | |--------------+---------------------------------------------| | L3 | Highest volume setting | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Description: | Controls auto-retrain mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %E0 | Auto-retrain disabled | |--------------+---------------------------------------------| | i %E1 | Auto-retrain enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | CLEAR-DOWN SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Dn [cmds] | |--------------+---------------------------------------------| | Description: | Enables/disables clear down signal to | | | expidate disconnection | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %D0 | Clear-down signal disabled | |--------------+---------------------------------------------| | i %D1 | Clear-down signal 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 enabled | |--------------+---------------------------------------------| | \N4 | V.42 reliable mode enabled | |--------------+---------------------------------------------| | \N5 | V.42/MNP mode enabled | |--------------+---------------------------------------------| | i \N6 | V.42/MNP/Normal mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Description: | Selects extended result codes | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \V0 | DCE speed displayed; extended result codes | | | disabled | |--------------+---------------------------------------------| | i \V1 | DCE speed displayed; extended result codes | | | enabled | |--------------+---------------------------------------------| | \V2 | DTE speed displayed; extended result codes | | | disabled | |--------------+---------------------------------------------| | \V3 | DTE speed displayed; extended result codes | | | enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | PASSWORD SELECTION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \P=n [cmds] | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Stores passwords in modem's NVRAM. Password | | | is a case sensitive 7 digit string. Modem | | | is factory set with no password stored. | | | \P=? displays password | +------------------------------------------------------------+ +------------------------------------------------------------+ | POWER-ON AUTO CONNECT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Pn [cmds] | |--------------+---------------------------------------------| | Description: | Enables/disables power-on auto connect | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %P0 | Power-on auto connect disabled | |--------------+---------------------------------------------| | i %P1 | Power-on auto connect enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | SECURITY CALLBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Sn [cmds] | |--------------+---------------------------------------------| | Description: | Controls password check and callback | | | security features | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i %S0 | Password check and callback security | | | features disabled | |--------------+---------------------------------------------| | %S1 | Password check and callback security | | | features enabled | |--------------+---------------------------------------------| | %S2 | Password check enabled. Callback disabled | +------------------------------------------------------------+ S(status) -REGISTERS +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format: | AT [cmds] S14=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-174 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls echo, result codes and display, | | | dial mode, and answer/originate mode. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Command echo disabled | | | | | | | 1 | Command echo enabled | |------+-------+---------------------------------------------| | 1 | 00 | Result codes enabled | | | | | | | 01 | Result codes disabled | | | | | | | 11 | Result code sending enabled in originate | | | | mode | |------+-------+---------------------------------------------| | 2 | 0 | Not used | |------+-------+---------------------------------------------| | 3 | 0 | Display result codes in numeric format | | | | | | | i 1 | Display result codes in verbose format | |------+-------+---------------------------------------------| | 4 | i 0 | Smart mode | | | | | | | 1 | Dumb mode | |------+-------+---------------------------------------------| | 5 | 0 | Tone dial enabled | | | | | | | 1 | Pulse dial enabled | |------+-------+---------------------------------------------| | 6 | 0 | Restore profile 0 on power-up | | | | | | | 1 | Restore profile 1 on power-up | |------+-------+---------------------------------------------| | 7 | 0 1 | Answer mode enabled | | | | | | | | Originate mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S16 | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-125 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls loopback tests, clear-down signal, | | | retraining, and result code sending | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | 0 | Remote digital loopback not requested | | | | | | | 1 | Remote digital loopback requested | |------+-------+---------------------------------------------| | 1 | 0 | Clear-down signal disabled | | | | | | | i 1 | Clear-down signal enabled | |------+-------+---------------------------------------------| | 2 | 0 | Retraining disabled | | | | | | | i 1 | Retraining enabled | |------+-------+---------------------------------------------| | 3 | 0 | Not used | |------+-------+---------------------------------------------| | 4 | 0 | DCE speed displayed; extended result codes | | | | disabled | | | 1 | | | | | DCE speed displayed; extended result codes | | | | enabled | |------+-------+---------------------------------------------| | 5 | 0 | DTE speed displayed; extended result codes | | | | disabled | | | 1 | | | | | DTE speed displayed; extended result codes | | | | enabled | |------+-------+---------------------------------------------| | 6-7 | 0 | Not used | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S21 | |------------------------------------------------------------| | Format | AT [cmds] S21=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-253 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects operating mode, line type, low DTR | | | action, and the long space disconnect | | | function. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Originate-only mode disabled | | | | | | | 1 | Originate-only mode enabled | |------+-------+---------------------------------------------| | 1 | i 0 | Switched line (PSTN/Dial-up) | | | | | | | 1 | Leased line | |------+-------+---------------------------------------------| | 2 | i 0 | CTS follows RTS | | | | | | | 1 | CTS forced high | |------+-------+---------------------------------------------| | 4, 3 | 00 | DTR signal ignored | | | | | | | 01 | Modem goes to command mode on low DTR | | | | | | | i 10 | Modem disconnects on low DTR; Auto-Answer | | | | is disabled. | | | 11 | | | | | Modem is initialized on low DTR | |------+-------+---------------------------------------------| | 5 | 0 | DCD forced high | | | | | | | i 1 | DCD normal | |------+-------+---------------------------------------------| | 6 | i 0 | DSR forced high | | | | | | | 1 | DSR normal | |------+-------+---------------------------------------------| | 7 | i 0 | Long space disconnect function disabled | | | | | | | 1 | Long space disconnect function enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls speaker volume and controls, | | | limits results codes, and pulse dial | | | make/break ratio. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 1, 0 | 00 | Low level volume | | | | | | | 01 | Low level volume | | | | | | | i 10 | Medium level volume | | | | | | | 11 | High level volume | |------+-------+---------------------------------------------| | 3, 2 | 00 | Speaker off | | | | | | | 01 | Speaker off on carrier | | | | | | | i 10 | Speaker always on | | | | | | | 11 | Speaker on during handshake | |------+-------+---------------------------------------------| | 6 - | 000 | Basic result codes only enabled | | 4 | | | | | 100 | Basic and connection speed result codes | | | | enabled | | | 101 | | | | | Basic and connection speed result codes and | | | 110 | dialtone detection enabled | | | | | | | i 111 | All result codes except dialtone detection | | | | enabled | | | | | | | | All result codes enabled | |------+-------+---------------------------------------------| | 7 | i 0 | 39/61ms at 10pps (North America) | | | | | | | 1 | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-189 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Grants/denies remote digital loopback, | | | controls DTE rate and parity, and sets | | | guard tone. | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 3 - | 0000 | Sets serial port speed to 0-300bps | | 0 | | | | | 0001 | Not used | | | | | | | 0010 | Sets serial port speed to 1200bps | | | | | | | 0011 | Sets serial port speed to 2400bps | | | | | | | 0100 | Sets serial port speed to 4800bps | | | | | | | 0101 | Not used | | | | | | | 0110 | Sets serial port speed to 9600bps | | | | | | | 0111 | Not used | | | | | | | 1000 | Sets serial port speed to 14.4Kbps | | | | | | | 1001 | Sets serial port speed to 19.2Kbps | | | | | | | 1010 | Sets serial port speed to 28.8Kbps | | | | | | | 1011 | Sets serial port speed to 38.4Kbps | | | | | | | 1100 | Sets serial port speed to 57.6Kbps | |------+-------+---------------------------------------------| | 5, 4 | i 00 | Parity even | | | | | | | 01 | Space Parity | | | | | | | 10 | Parity odd | | | | | | | 11 | Mark or No Parity | |------+-------+---------------------------------------------| | 7, 6 | i 00 | Guard tone disabled | | | | | | | 01 | Guard tone 550Hz enabled | | | | | | | 10 | Guard tone 1800Hz enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects synchronous/asynchronous mode, | | | clock source, and DCE speed | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 1, 0 | i 00 | Asynchronous mode, serial port speed | | | | follows connect speed | | | 01 | | | | | Asynchronous off-line command mode and | | | 10 | synchronous connect mode | | | | | | | 11 | Asynchronous off-line command mode; modem | | | | autodials first number in directory, then | | | | synchronous connect mode | | | | | | | | Asynchronous off-line command mode on low | | | | DTR, synchronous connect mode on high DTR | |------+-------+---------------------------------------------| | 3, 2 | i 00 | Local modem generates transmit clock source | | | | | | | 01 | Local DTE generates transmit clock source | | | | | | | 10 | Remote DCE/DTE generates transmit clock | | | | source | |------+-------+---------------------------------------------| | 7-4 | 0000 | DCE at 300bps | | | | | | | 0001 | Not used | | | | | | | 0010 | DCE at 1200bps | | | | | | | 0011 | DCE at 2400bps | | | | | | | 0100 | DCE at 4800bps | | | | | | | 0101 | DCE at 7200bps | | | | | | | 0110 | DCE at 9600bps | | | | | | | 0111 | DCE at 12.0Kbps | | | | | | | 1000 | DCE at 14.4Kbps | | | | | | | 1001 | DCE at 16.8Kbps | | | | | | | 1010 | DCE at 19.2Kbps | | | | | | | 1011 | DCE at 21.6Kbps | | | | | | | 1100 | DCE at 24.0Kbps | | | | | | | 1101 | DCE at 26.4Kbps | | | | | | | 1110 | DCE at 28.8Kbps | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S28 | |------------------------------------------------------------| | Format | AT [cmds] S28=n [cmds] | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Controls power-on auto connect, security | | | callback, automatic rate negotiation, and | | | DCE protocol options | |--------------+---------------------------------------------| | Bit | Value | Function | |------+-------+---------------------------------------------| | 0 | i 0 | Power-on auto connect disabled | | | | | | | 1 | Power-on auto connect enabled | |------+-------+---------------------------------------------| | 2, 1 | i 00 | Password check and callback disabled | | | | | | | 01 | Password check and callback enabled | | | | | | | 11 | Password check enabled; callback disabled | |------+-------+---------------------------------------------| | 3 | i 0 | Automatic rate negotiation disabled | | | | | | | 1 | Automatic rate negotiation enabled | |------+-------+---------------------------------------------| | 4-7 | 0000 | CCITT mode | | | | | | | i | Bell mode | | | 0001 | | | | | Auto scan mode | | | 0010 | | | | | CCITT V.23 mode | | | 0011 | | | | | 300bps | | | 0100 | | | | | 1200bps | | | 0101 | | | | | 2400bps | | | 0110 | | | | | 4800bps | | | 0111 | | | | | 9600bps | | | 1000 | | | | | 14.4Kbps | | | 1001 | | | | | 16.8Kbps | | | 1010 | | | | | 19.2Kbps | | | 1011 | | | | | 21.6Kbps | | | 1100 | | | | | 24.0Kbps | | | 1101 | | | | | 26.4Kbps | | | 1110 | | | | | 28.8Kbps | | | 1111 | | +------------------------------------------------------------+