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# ACER, INC.
MAGIC F56
Card Type Modem
Chipset Unidentified
I/O Options Line in, line out, audio card
connector, wake-up ring connector
microphone in, speaker out
Maximum Modem Rate 56.0Kbps
Maximum Fax Rate 14.4Kbps
Modem Modulation Bell 103/212A
Protocol
ITU-T V.22bis,V.32, V.32bis, V.34,
K56flex
Fax Modulation ITU-T V.17, V21 CH2, V27ter, V.29
Protocol
Fax Class Class I
Error MNP5, V.42, V.42bis
Correction/Compression
Data Bus 16-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+-------+------------------------+-------|
| Line in (RJ-11) | CN1 | Microphone in | CN4 |
|-------------------+-------+------------------------+-------|
| Line out (RJ-11) | CN2 | Wake-up ring connector | CN5 |
|-------------------+-------+------------------------+-------|
| Speaker out | CN3 | Audio card connector | CN6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, A/ |
|------------------------------------------------------------|
| A, B, E, H, M, O, P, Q, X, Y, Z |
|------------------------------------------------------------|
| &C, &F, &M, &P, &Q, &R, &T, &V, &W, &Y |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \K, \N, \V |
|------------------------------------------------------------|
| %E, %L, %Q |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S14, S16, S18, S21, S24, S25, S29 |
|------------------------------------------------------------|
| S30, S31, S32, S33, S38, S91, S92, S95 |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| +MS |
|------------------------------------------------------------|
| Voice Commands |
|------------------------------------------------------------|
| #CLS, #MDL?, #MFL, #REV?, #VBQ, #VBT, #VCI? #VRA, #VRN, |
| #VRX, #VSD |
|------------------------------------------------------------|
| Note: |
| |
| See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-MODE DETECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] N n [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. Handshake |
| | | begins at line speed designated by the |
| | | S37 register |
|---+--------------+-----------------------------------------|
| » | N1 | Auto-mode detection enabled. Handshake |
| | | conducted according to the automode |
| | | algorithm supported by the modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &S n [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] &D | |
| | n [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, | Command 0 | Command | Command | Command |
| &Q6 | | 1 | 2 | 4 |
|--------------+---------------+---------+---------+---------|
| &Q1, &Q4 | Command 2 | Command | Command | Command |
| | | 1 | 2 | 4 |
|--------------+---------------+---------+---------+---------|
| &Q2, &3 | Command 2 | Command | Command | Command |
| | | 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 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &K n [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 | Both RTS/CTS & XON/XOFF flow control |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GUARD TONE |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] &G n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Commands the modem to transmit a guard |
| | | tone in V.22/V.22bis |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | &G0 | Guard tone disabled |
|---+--------------+-----------------------------------------|
| | &G1 | Guard tone disabled |
|---+--------------+-----------------------------------------|
| | &G2 | 1800Hz guard tone enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] I n [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports product ID code |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Reports "OK" |
|--------------+---------------------------------------------|
| I3 | Reports firmware revision, model, and |
| | interface type |
|--------------+---------------------------------------------|
| I4 | Reports OEM identifier string in either |
| | binary or ASCII format |
|--------------+---------------------------------------------|
| I5 | Reports country code |
|--------------+---------------------------------------------|
| I6 | Reports data pump model and internal code |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] L n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Low volume setting |
|--------------+---------------------------------------------|
| L1 | Low volume setting |
|--------------+---------------------------------------------|
| L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORE TELEPHONE NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Z n =(phone # & modifiers) |
|--------------+---------------------------------------------|
| Description: | Writes selected telephone numbers into the |
| | non-volatile memory at location n |
|------------------------------------------------------------|
| Note: The characters described in the D command are |
| valid for use in the &Z command; telephone numbers |
| and modifiers can include up to 34 characters. |
|------------------------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &Z0 | Telephone number stored in memory location |
| | 0 |
|--------------+---------------------------------------------|
| &Z1 | Telephone number stored in memory location |
| | 1 |
|--------------+---------------------------------------------|
| &Z2 | Telephone number stored in memory location |
| | 2 |
|--------------+---------------------------------------------|
| &Z3 | Telephone number stored in memory location |
| | 3 |
+------------------------------------------------------------+
VOICE COMMANDS
+------------------------------------------------------------+
| DATA/DSVD MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] -SMS= n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Selects data or DSVD mode |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | -SMS=0 | Data mode |
|---+--------------+-----------------------------------------|
| | -SMS=2 | DSVD mode |
|---+--------------+-----------------------------------------|
| | -SMS=3 | Automatic mode selection |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE DEVICE |
|------------------------------------------------------------|
| Type: | Configuration |
|------------------+-----------------------------------------|
| | Format: | AT [cmds] #VLS= n [cmds] |
|---+--------------+-----------------------------------------|
| | Description: | Selects the I/O device for the DSP |
| | | chip. |
|---+--------------+-----------------------------------------|
| | Command | Function |
|---+--------------+-----------------------------------------|
| » | #VLS=0 | Headset used for voice I/O. |
|---+--------------+-----------------------------------------|
| | #VLS=6 | Speakerphone used for voice I/O. |
+------------------------------------------------------------+
S(STATUS) -REGISTERS
+------------------------------------------------------------+
| AUTOSYNC HDLC ADDRESS OR BSC SYNC CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S20= n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Selects the autosync HDLC address or BSC |
| | character |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S19 |
|------------------------------------------------------------|
| Format | AT [cmds] S19= | |
| | n [cmds] | |
|--------------+-----------------| |
| Range: | Unidentified | |
|--------------+-----------------| |
| Unit: | Bit-mapped | |
|--------------+-----------------| |
| Description: | Selects | |
| | BSC/HDLC | |
| | format, adress | |
| | detection, line | |
| | coding, and | |
| | idle indicatior | |
|--------------+-----------------+---------------------------|
| Bit | Value | Function |
|--------------+-----------------+---------------------------|
| 0 | 0 | Not used |
|--------------+-----------------+---------------------------|
| 1 | 0 | BSC |
| | | |
| | 1 | HDLC |
|--------------+-----------------+---------------------------|
| 2 | 0 | Adress detection enabled |
| | | |
| | 1 | Adress detection disabled |
|--------------+-----------------+---------------------------|
| 3 | 0 | NRZI coding |
| | | |
| | 1 | NZI coding |
|--------------+-----------------+---------------------------|
| 4 | 0 | Mark idle |
| | | |
| | 1 | Flag or sync idle |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Off volume |
| | | |
| | 01 | Low level volume |
| | | |
| | 10 | Medium level volume |
| | | |
| | 11 | High level volume |
|--------------+--------------+------------------------------|
| 3, 2 | 00 | Speaker off |
| | | |
| | 01 | Speaker off on carrier |
| | | |
| | 10 | Speaker always on |
| | | |
| | 11 | Speaker on during handshake |
|--------------+--------------+------------------------------|
| 6 - 4 | 000 | Basic result codes only |
| | | enabled |
| | 100 | |
| | | Basic and connection speed |
| | 101 | result codes enabled |
| | | |
| | 110 | Basic and connection speed |
| | | result codes and dialtone |
| | 111 | detection enabled |
| | | |
| | | All result codes except |
| | | dialtone detection enabled |
| | | |
| | | All result codes enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|---+--------------+---------------+-------------------------|
| | 0 | 0 | Remote digital loopback |
| | | | denied |
| | | 1 | |
| | | | Remote digital loopback |
| | | | allowed |
|---+--------------+---------------+-------------------------|
| | 3 - 1 | 000 | Sets serial port speed |
| | | | to 0-300bps |
| | | 001 | |
| | | | Sets serial port speed |
| | | 010 | to 600bps |
| | | | |
| | | 011 | Sets serial port speed |
| | | | to 1200bps |
| | | 100 | |
| | | | Sets serial port speed |
| | | 101 | to 2400bps |
| | | | |
| | | 110 | Sets serial port speed |
| | | | to 4800bps |
| | | 111 | |
| | | | Sets serial port speed |
| | | | to 9600bps |
| | | | |
| | | | Sets serial port speed |
| | | | to 19.2Kbps |
| | | | |
| | | | Sets serial port speed |
| | | | to 38.4Kbps or higher |
|---+--------------+---------------+-------------------------|
| | 5, 4 | 00 | Parity even |
| | | | |
| | | 01 | Space Parity |
| | | | |
| | | 10 | Parity odd |
| | | | |
| | | 11 | Mark or No Parity |
|---+--------------+---------------+-------------------------|
| | 7, 6 | 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: | 0-111 | |
|--------------+--------------------------------| |
| Unit: | Bit-mapped | |
|--------------+--------------------------------| |
| Description: | Selects | |
| | synchronous/asynchronous mode, | |
| | line type, clock source, and | |
| | ITU-T/Bell modes. | |
|--------------+--------------------------------+------------|
| Bit | Value | Function |
|--------------+--------------------------------+------------|
| 6 | 0 | ITU/T mode |
| | | |
| | 1 | Bell mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S40 |
|------------------------------------------------------------|
| Format | AT [cmds] | |
| | S40= n [cmds] | |
|--------------+---------------| |
| Range: | 0-255 | |
|--------------+---------------| |
| Unit: | Bit-mapped | |
|--------------+---------------| |
| Description: | Controls | |
| | power level | |
| | and break | |
| | handling; | |
| | selects MNP | |
| | extended | |
| | services, | |
| | link | |
| | negotiation, | |
| | and block | |
| | size. | |
|--------------+---------------+-----------------------------|
| Bit | Value | Function |
|--------------+---------------+-----------------------------|
| 0, 1 | 00 | MNP Extended Services |
| | | disabled |
| | 01 | |
| | | MNP Extended Services |
| | 11 | enabled |
| | | |
| | | MNP extended services |
| | | enabled without indicating |
| | | MNP on the answer detection |
| | | phase. |
|--------------+---------------+-----------------------------|
| 2 | 0 | Power level adjustment |
| | | enabled |
| | 1 | |
| | | Power level adjustment |
| | | disabled |
|--------------+---------------+-----------------------------|
| 5, 3 | 000 | AT\K0 |
| | | |
| | 001 | AT\K1 |
| | | |
| | 010 | AT\K2 |
| | | |
| | 011 | AT\K3 |
| | | |
| | 100 | AT\K4 |
| | | |
| | 101 | AT\K5 |
|--------------+---------------+-----------------------------|
| 7, 6 | 00 | MNP block size is 64 |
| | | characters |
| | 01 | |
| | | MNP block size is 128 |
| | 10 | characters |
| | | |
| | 11 | MNP block size is 192 |
| | | characters |
| | | |
| | | MNP block size is 256 |
| | | characters |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S41 |
|------------------------------------------------------------|
| Format | AT [cmds] S41= | |
| | n [cmds] | |
|--------------+----------------| |
| Range: | 0-31 | |
|--------------+----------------| |
| Unit: | Bit-mapped | |
|--------------+----------------| |
| Description: | Selects | |
| | compression, | |
| | auto-retrain, | |
| | flow control, | |
| | and MNP mode. | |
|--------------+----------------+----------------------------|
| Bit | Value | Function |
|--------------+----------------+----------------------------|
| 1 - 0 | 00 | Data compression disabled |
| | | |
| | 01 | MNP5 enabled |
| | | |
| | 10 | V.42bis enabled |
| | | |
| | 11 | MNP5 and V.42bis enabled |
|--------------+----------------+----------------------------|
| 2 | 00 | Auto-retrain disabled |
| | | |
| | 01 | Auto-retrain enabled |
| | | |
| | 10 | Auto-fallback/fall-forward |
| | | enabled |
|--------------+----------------+----------------------------|
| 3 | 0 | Flow control disabled |
| | | |
| | 1 | Flow control enabled |
|--------------+----------------+----------------------------|
| 4 | 0 | Stream mode for MNP |
| | | |
| | 1 | Block mode for MNP |
|--------------+----------------+----------------------------|
| 6, 5 | 0 | Not used |
|--------------+----------------+----------------------------|
| 7 | 0 | Fallback to V.22/V.22bis |
| | | disabled |
| | 1 | |
| | | Fallback to V.22/V.22bis |
| | | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S201 |
|------------------------------------------------------------|
| Format | AT [cmds] | |
| | S41= n | |
| | [cmds] | |
|--------------+--------------| |
| Range: | Unidentified | |
|--------------+--------------| |
| Unit: | Bit-mapped | |
|--------------+--------------| |
| Description: | Controls | |
| | cellular | |
| | transmit | |
| | level | |
|--------------+--------------+------------------------------|
| Bit | Value | Function |
|--------------+--------------+------------------------------|
| 4 - 0 | 00 | Initial cellular power lever |
| | | setting disabled |
| | 01 | |
| | | Initial cellular power lever |
| | | setting enabled |
|--------------+--------------+------------------------------|
| 5 | 00 | Compromise equalizer |
| | | disabled |
| | 01 | |
| | | Compromise equalizer enabled |
|--------------+--------------+------------------------------|
| 6, 7 | 0 | Not used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK OPTIONS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S82= n [cmds] |
|--------------+---------------------------------------------|
| Description: | For compatibility purposes only. Performs |
| | no function |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION FAILURE CODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S86? [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports codes which correspond to the |
| | possible causes of a connection failure |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Normal hang up |
|--------------+---------------------------------------------|
| 4 | Carrier signal lost |
|--------------+---------------------------------------------|
| 5 | No error-control detected for remote modem |
| | during feature negotiation |
|--------------+---------------------------------------------|
| 9 | No common protocol found |
|--------------+---------------------------------------------|
| 12 | No failure - remote modem disconnected |
| | normally |
|--------------+---------------------------------------------|
| 13 | Remote modem failed to respond after 10 |
| | re-transmissions same message |
|--------------+---------------------------------------------|
| 14 | Violation of negotiated protocol caused |
| | failure |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Speed of last connection |
|--------------+---------------------------------------------|
| S37=1 | 300bps |
|--------------+---------------------------------------------|
| S37=2 | 300bps |
|--------------+---------------------------------------------|
| S37=3 | 300bps |
|--------------+---------------------------------------------|
| S37=5 | V.22 at 1200bps |
|--------------+---------------------------------------------|
| S37=6 | V.22bis at 2400bps |
|--------------+---------------------------------------------|
| S37=7 | V.23 |
|--------------+---------------------------------------------|
| S37=8 | V.32 or V.32bis at 4800bps |
|--------------+---------------------------------------------|
| S37=9 | V.32 or V.32bis at 9600bps |
|--------------+---------------------------------------------|
| S37=10 | V.32bis at 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | V.32bis at 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | V.32bis at 7200bps |
|--------------+---------------------------------------------|
| S37=15 | VFC at 14.4Kbps |
|--------------+---------------------------------------------|
| S37=16 | VFC at 16.8Kbps |
|--------------+---------------------------------------------|
| S37=17 | VFC at 19.2Kbps |
|--------------+---------------------------------------------|
| S37=18 | VFC at 21.6Kbps |
|--------------+---------------------------------------------|
| S37=19 | VFC at 24.0Kbps |
|--------------+---------------------------------------------|
| S37=20 | VFC at 24.6Kbps |
|--------------+---------------------------------------------|
| S37=21 | VFC 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=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=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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S39? [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the current flow control |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Flow control disabled |
|--------------+---------------------------------------------|
| 3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| 4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| 5 | Transparent XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| 6 | Both RTS/CTS & XON/XOFF flow control |
| | enabled |
+------------------------------------------------------------+