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# OSITECH COMMUNICATIONS, INC.
FIVE OF DIAMONDS
Card Type Modem/Fax card
Chip Set Unidentified
Maximum Modem Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103A/212A
Protocol
ITU-T V34, V.32bis, V.32, V.22bis,
V.22, V.23, V.21
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 PCMCIA
54688
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, A/ |
|------------------------------------------------------------|
| A, B, E, H, M, O, P, Q, T, W, Y, Z |
|------------------------------------------------------------|
| &C, &F, &L, &P, &R, &T, &V, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \B, \G, \K, \N |
|------------------------------------------------------------|
| %C, %L, %Q |
|------------------------------------------------------------|
| -K, *H |
|------------------------------------------------------------|
| @M, :E, )M |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S14, S16, S18, S21, S22, S23, S24, S25, |
|------------------------------------------------------------|
| S27, S28, S30, S31, S32, S33, S38, S39, S40, S41, S86, S95 |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| +MS |
|------------------------------------------------------------|
| |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-MODE DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects various options for the automatic |
| | detection and negotiation of protocols |
| | during the handshake process if the modem |
| | is communicating with a remote modem of |
| | dissimilar speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| N0 | Auto-mode detection disabled |
|--------------+---------------------------------------------|
| í N1 | Auto-mode detection enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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. |
|--------------+---------------------------------------------|
| &Q4 | Auto-synchronous mode |
|--------------+---------------------------------------------|
| í &Q5 | Error correction mode |
|--------------+---------------------------------------------|
| &Q6 | Buffered asynchronous mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode options. Same |
| | as &Q |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &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 |
|------------------------------------------------------------|
| Note: The action each variant of &D causes depends on |
| the setting of &Q |
|------------------------------------------------------------|
| &Q Setting | &D0 | &D1 | &D2 | &D3 |
|------------------+----------+----------+---------+---------|
| &Q0, &Q5, &Q6 | NONE | Command | Command | Command |
| | | 1 | 2 | 3 |
|------------------+----------+----------+---------+---------|
| &Q1, &Q4 | Command | Command | Command | Command |
| | 1 | 1 | 2 | 3 |
|------------------+----------+----------+---------+---------|
| &Q2, &Q3 | Command | Command | Command | Command |
| | 2 | 2 | 2 | 2 |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| DL | Re-dial last number |
|--------------+---------------------------------------------|
| 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& | Wait for calling card bong tone detection |
| | function enabled. Waits for bong for amount |
| | of time specified by the S7 command. |
|--------------+---------------------------------------------|
| D; | Modem returned to idle state after dialing. |
| | The semicolon can only be placed at the end |
| | of the dial command. |
|--------------+---------------------------------------------|
| D^ | 1300Hz calling tone enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TONE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | No function. Included for compatibility |
+------------------------------------------------------------+
+------------------------------------------------------------+
| JACK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | No function. Included for compatibility |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables flow control options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K5 | Transparent XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K6 | Unidirectional XON/XOFF flow control |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE MODULATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Fn [cmds] |
|--------------+---------------------------------------------|
| Description: | Assures a connection at a specific speed |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í F0 | Auto-detect mode |
|--------------+---------------------------------------------|
| F1 | V.21 or Bell 103 |
|--------------+---------------------------------------------|
| F3 | V.23 at 1200/75bps |
|--------------+---------------------------------------------|
| F4 | V.22 at 1200bps |
|--------------+---------------------------------------------|
| F5 | V.22bis at 2400bps |
|--------------+---------------------------------------------|
| F6 | V.22bis or V.32 at 4800bps |
|--------------+---------------------------------------------|
| F7 | V.32bis or V.32 at 7200bps |
|--------------+---------------------------------------------|
| F8 | V.32bis or V.32 at 9600bps |
|--------------+---------------------------------------------|
| F9 | V.32bis at 12.0Kbps |
|--------------+---------------------------------------------|
| F10 | V.32bis at 14.4Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í I0 | Reports four digit product code |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Tests and reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports firmware manufacturer information |
|--------------+---------------------------------------------|
| I4 | Reports product identification |
|--------------+---------------------------------------------|
| I5 | Reports country code |
|--------------+---------------------------------------------|
| I6 | Reports hardware identification |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SELECT CALL PROGRESS RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables selection of tone detection and |
| | associated result code format options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| X0 | Busy and dial tone detection disabled; |
| | result codes 0 - 4, 8, 22, 40 - 81 enabled. |
|--------------+---------------------------------------------|
| X1 | Busy and dial tone detection disabled; |
| | result codes 0 - 5, 8 - 81 enabled. |
|--------------+---------------------------------------------|
| X2 | Busy tone detection disabled, dial tone |
| | detection enabled; result codes 0 - 6, |
| | |
| | 8 - 81 enabled. |
|--------------+---------------------------------------------|
| X3 | Busy tone detection enabled, dial tone |
| | detection disabled; result codes 0 - 5, |
| | |
| | 7 - 81 enabled. |
|--------------+---------------------------------------------|
| X4 | Busy and dial tone detection enabled; |
| | result codes 0 - 81 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 |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
|--------------+---------------------------------------------|
| %E2 | Auto-fallback/fall-forward enabled |
|--------------+---------------------------------------------|
| %E3 | Auto-retrain enabled; hang-up when EQM |
| | reaches hang-up threshold |
+------------------------------------------------------------+
S (status) Registers
+------------------------------------------------------------+
| DCE LINE SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S37=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum allowable data exchange |
| | rate attempted during handshake process. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S37=0 | Attempt to connect at speed of last |
| | connection |
|--------------+---------------------------------------------|
| S37=1 | Attempt to connect at 300bps |
|--------------+---------------------------------------------|
| S37=2 | Attempt to connect at 300bps |
|--------------+---------------------------------------------|
| S37=3 | Attempt to connect at 300bps |
|--------------+---------------------------------------------|
| S37=4 | Attempt to connect at Reserved |
|--------------+---------------------------------------------|
| S37=5 | Attempt to connect at V.22 at 1200bps |
|--------------+---------------------------------------------|
| S37=6 | Attempt to connect at V.22bis at 2400bps |
|--------------+---------------------------------------------|
| S37=7 | Attempt to connect at V.23 at 75/1200bps |
|--------------+---------------------------------------------|
| S37=8 | Attempt to connect at V.32bis/V.32 at |
| | 4800bps |
|--------------+---------------------------------------------|
| S37=9 | Attempt to connect at V.32bis/V.32 at |
| | 9600bps |
|--------------+---------------------------------------------|
| S37=10 | Attempt to connect at V.32bis at 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | Attempt to connect at V.32bis at 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | Attempt to connect at V.32bis at 7200bps |
|--------------+---------------------------------------------|
| S37=15 | Attempt to connect at V.FC at 14.4Kbps |
|--------------+---------------------------------------------|
| S37=16 | Attempt to connect at 16.8Kbps |
|--------------+---------------------------------------------|
| S37=17 | Attempt to connect at 19.2Kbps |
|--------------+---------------------------------------------|
| S37=18 | Attempt to connect at 1600bps |
|--------------+---------------------------------------------|
| S37=19 | Attempt to connect at 24.0Kbps |
|--------------+---------------------------------------------|
| S37=20 | Attempt to connect at 26.4Kbps |
|--------------+---------------------------------------------|
| S37=21 | Attempt to connect at 28.8Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 direct connection |
|--------------+---------------------------------------------|
| S36=2 | Reserved |
|--------------+---------------------------------------------|
| S36=3 | Attempt a buffered connection |
|--------------+---------------------------------------------|
| S36=4 | Attempt a connection at MNP2-4; if that |
| | fails, hang up. |
|--------------+---------------------------------------------|
| S36=5 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a direct connection. |
|--------------+---------------------------------------------|
| S36=6 | Reserved |
|--------------+---------------------------------------------|
| S36=7 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a buffered connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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=7 | Detection negotiation and XID negotiation |
| | enabled |
|---------------+--------------------------------------------|
| S48=128 | Fall-back to options set in S36 |