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# SILICOM CONNECTIVITY SOLUTIONS, INC.
MODEM56
Card Type Modem (synchronous/asynchronous), Fax
Chip Set Lucent Technologies
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103J/212A
Protocol
ITU-T V.21, V.22A/B, V.22bis, V.23,
V.32terbo, V.32bis, V.34
56Kflex
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP2-4, MNP5, V.42, V.42bis
Correction/Compression
Fax Class Class I & II
Data Bus PCMCIA Type II
54902
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, C, E, F, H, M, P, Q, T, V, W, Y, Z |
|------------------------------------------------------------|
| &B, &C, &G, &V, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \K, \T, \X |
|------------------------------------------------------------|
| %C |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| -C |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S24 |
|------------------------------------------------------------|
| 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 | In originate mode, handshake begins at line |
| | speed designated by the S37 register. Modem |
| | can shift to a slower speed if necessary. |
| | |
| | In answer mode, handshake attempted with |
| | the following protocols in order - V.FC, |
| | V.32bis, V.32, V.22bis, V.22 or Bell 212, |
| | V.21, and Bell 103 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUXILIARY RELAY |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the auxiliary relay |
|--------------+---------------------------------------------|
| Command | Jack Type |
|--------------+---------------------------------------------|
| í &J0 | Auxiliary relay is never closed |
|--------------+---------------------------------------------|
| &J1 | Not supported, returns ERROR |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATION PROTOCOLS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the communication protocol for data |
| | calls |
|------------------------------------------------------------|
| Note: The B command allows the simultaneous selection |
| of more than one suffix, enabling multiple protocols. |
|------------------------------------------------------------|
| Command | Protocol |
|--------------+---------------------------------------------|
| B0 | ITU-T V.22 at 300 or 1200bps |
|--------------+---------------------------------------------|
| B1 | Bell 212A at 300 or 1200bps |
|--------------+---------------------------------------------|
| B2 | Disable V.23 reverse channel |
|--------------+---------------------------------------------|
| B3 | Disable V.23 reverse channel |
|--------------+---------------------------------------------|
| B15 | ITU-T V.21 at 300bps |
|--------------+---------------------------------------------|
| B16 | Bell 103J at 300bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Mn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &M0 | Asynchronous mode |
|--------------+---------------------------------------------|
| &M1 | Reserved |
|--------------+---------------------------------------------|
| &M2 | Reserved |
|--------------+---------------------------------------------|
| &M3 | Reserved |
|--------------+---------------------------------------------|
| &M4 | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATIONS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects communications mode options |
|--------------+---------------------------------------------|
| Command | Mode |
|--------------+---------------------------------------------|
| í &Q0 | Buffered asynchronous mode, serial port |
| | speed follows connect speed. |
|--------------+---------------------------------------------|
| &Q1 | Reserved |
|--------------+---------------------------------------------|
| &Q2 | Reserved |
|--------------+---------------------------------------------|
| &Q3 | Reserved |
|--------------+---------------------------------------------|
| &Q4 | Reserved |
|--------------+---------------------------------------------|
| &Q5 | Error correction mode, buffered |
|--------------+---------------------------------------------|
| &Q6 | Buffered asynchronous mode |
|--------------+---------------------------------------------|
| &Q7 | Reserved |
|--------------+---------------------------------------------|
| &Q8 | MNP error mode |
|--------------+---------------------------------------------|
| &Q9 | V.42 or MNP error control mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &S0 | DSR forced high |
|--------------+---------------------------------------------|
| í &S1 | DSR high only while modem is handshaking or |
| | connected |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í &D0 | Modem does not respond to DTR |
|---------------+--------------------------------------------|
| &D1 | Modem goes to command mode after DTR goes |
| | is off |
|---------------+--------------------------------------------|
| &D2 | Modem goes to command mode and disconnects |
| | (hangs up) after DTR goes off; Auto-Answer |
| | is disabled. |
|---------------+--------------------------------------------|
| &D3 | 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 |
|--------------+---------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| DV | The modem switches to speakerphone mode and |
| | dials the number |
|--------------+---------------------------------------------|
| 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 prompt tone detection function |
| | enabled. Waits for prompt tone 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^ | Disable data calling tone transmission |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í &F0 | Recall factory setting as active |
| | configuration |
|--------------+---------------------------------------------|
| &F5 | Recall factory settings appropriate for ETC |
| | mode as active configuration |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables flow control options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| &K1 | Reserved |
|--------------+---------------------------------------------|
| &K2 | Reserved |
|--------------+---------------------------------------------|
| í &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|---------------+--------------------------------------------|
| O3 | Rate renegotiation before returning to |
| | on-line data mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PULSE DIALING RATIO |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Pn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects pulse dial make/break ratio |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &P0 | 39/61ms at 10pps (North America) |
|--------------+---------------------------------------------|
| í &P1 | 33/67ms at 10pps (Europe) |
|--------------+---------------------------------------------|
| &P2 | 33/67ms at 20pps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports default speed and controller |
| | firmware version |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Tests and reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports default speed and controller |
| | firmware version |
|--------------+---------------------------------------------|
| I4 | Reports firmware version for data pump |
|--------------+---------------------------------------------|
| I5 | Reports the board ID: software version, |
| | hardware version, and country ID |
|--------------+---------------------------------------------|
| I6 | Reports OK |
|--------------+---------------------------------------------|
| I7 | Reports OK |
|--------------+---------------------------------------------|
| I8 | Reports OK |
|--------------+---------------------------------------------|
| I9 | Reports country code |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESTORE PROFILE ON POWER-UP |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Yn [cmds] |
|--------------+---------------------------------------------|
| Description: | Restores a selected profile into the active |
| | profile on power-up (hard reset) |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &Y0 | Restore profile 0 on power-up |
|--------------+---------------------------------------------|
| &Y1 | Returns ERROR |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 enabled. |
|--------------+---------------------------------------------|
| X1 | Busy and dial tone detection disabled; |
| | result codes 0 - 5 & 10 enabled. |
|--------------+---------------------------------------------|
| X2 | Busy tone detection disabled, dial tone |
| | detection enabled; result codes 0 - 6 & 10 |
| | enabled. |
|--------------+---------------------------------------------|
| X3 | Busy tone detection enabled, dial tone |
| | detection disabled; result codes 0 - 5, 7 & |
| | 10 enabled. |
|--------------+---------------------------------------------|
| X4 | Busy and dial tone detection enabled; |
| | result codes 0 - 7 & 10 enabled. |
|--------------+---------------------------------------------|
| X5 | All result codes enabled |
|--------------+---------------------------------------------|
| X6 | All result codes enabled |
|--------------+---------------------------------------------|
| X7 | Extended result codes disabled, dial tone |
| | detection and busy tone detection result |
| | codes 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORE ACTIVE PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Writes the values for the active profile |
| | into the non-volatile RAM |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &W0 | Write the active profile to stored profile |
| | 0 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Tn |
|--------------+---------------------------------------------|
| Description: | Selects test options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &T0 | End current test |
|--------------+---------------------------------------------|
| &T1 | Begin local analog loopback test |
|--------------+---------------------------------------------|
| &T3 | Begin local digital loopback |
|--------------+---------------------------------------------|
| &T6 | Request remote digital loopback |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.32 - AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain function if poor line |
| | quality is detected |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &B1 | Auto-retrain enabled if line quality is |
| | poor |
+------------------------------------------------------------+
Extended AT Commands
+------------------------------------------------------------+
| AUTO RETRAIN/FALLBACK/FALL FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto retrain and auto |
| | fallback/fall forward |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| %E0 | Disable fallback/fall forward |
|-----------------+------------------------------------------|
| %E1 | Disable fallback/fall forward |
|-----------------+------------------------------------------|
| %E2 | Enable fallback/fall forward |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BITS/S RATE CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets DTE interface to line speed |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \J0 | Turn off feature |
|--------------+---------------------------------------------|
| \J1 | Turn on feature |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BLACKLIST |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the numbers for which the last |
| | call attempted in the past two hours |
| | failed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Reliable mode enabled |
|--------------+---------------------------------------------|
| \N3 | V.42 MNP or buffered |
|--------------+---------------------------------------------|
| \N4 | V.42 reliable mode enabled |
|--------------+---------------------------------------------|
| \N5 | V.42 MNP or buffered |
|--------------+---------------------------------------------|
| \N7 | V.42 MNP or buffered |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Vn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects extended result codes |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \V0 | Extended result codes disabled |
|--------------+---------------------------------------------|
| \V1 | Extended result codes enabled |
|--------------+---------------------------------------------|
| \V2 | Extended result codes enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \G0 | Returns OK for compatibility |
|--------------+---------------------------------------------|
| \G1 | Not supported, returns ERROR |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets type of flow control used by modem |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \Q0 | Flow control disabled |
|--------------+---------------------------------------------|
| \Q1 | Bidirectional XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| \Q2 | CTS flow control by DCE enabled |
|--------------+---------------------------------------------|
| \Q3 | Bidirectional RTS/CTS flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RE-DIALING |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Xn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls re-dialing |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| %X0 | Disables re-dialing suppression |
|----------------+-------------------------------------------|
| %X1 | Enables re-dialing suppression |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RING INDICATOR |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Rn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the ring indicator signal |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \R0 | Ring indicator signal is off after the call |
| | is answered |
+------------------------------------------------------------+
Special Commands
+------------------------------------------------------------+
| DIRECT CONNECT |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] )Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the direct connect function |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| )C0 | Select landline |
|--------------+---------------------------------------------|
| )C1 | Select OKI/AT&T type phones |
|--------------+---------------------------------------------|
| )C2 | Select Motorola phones |
|--------------+---------------------------------------------|
| )C3 | Select NEC type phones |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DSVD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SSEn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the DSVD (Digital Simultaneous |
| | Voice Data) |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -SSE0 | Disabled |
|--------------+---------------------------------------------|
| -SSE1 | Enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNCHRONOUS BUFFERED MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +ESn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the synchronous buffered mode |
+------------------------------------------------------------+
S(status) -REGISTERS
+------------------------------------------------------------+
| 56K DIAL LINE RATE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S38=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the 56K dial line rate |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S38=0 | 56K disabled |
|--------------+---------------------------------------------|
| S38=1 | 56K enabled - automatic speed selection |
|--------------+---------------------------------------------|
| S38=2 | 32000bps |
|--------------+---------------------------------------------|
| S38=3 | 34000bps |
|--------------+---------------------------------------------|
| S38=4 | 36000bps |
|--------------+---------------------------------------------|
| S38=5 | 38000bps |
|--------------+---------------------------------------------|
| S38=6 | 40000bps |
|--------------+---------------------------------------------|
| S38=7 | 42000bps |
|--------------+---------------------------------------------|
| S38=8 | 44000bps |
|--------------+---------------------------------------------|
| S38=9 | 46000bps |
|--------------+---------------------------------------------|
| S38=10 | 48000bps |
|--------------+---------------------------------------------|
| S38=11 | 50000bps |
|--------------+---------------------------------------------|
| S38=12 | 52000bps |
|--------------+---------------------------------------------|
| S38=13 | 54000bps |
|--------------+---------------------------------------------|
| S38=14 | 56000bps |
|--------------+---------------------------------------------|
| S38=15 | 58000bps |
|--------------+---------------------------------------------|
| S38=16 | 60000bps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format: | AT [cmds] S14=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 170 |
|--------------+---------------------------------------------|
| Range: | 0-174 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls echo, result codes and display, |
| | dial mode, and answer/originate mode. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 3 | 0 | Display result codes in numeric format |
| | | |
| | í 1 | Display result codes in verbose format |
|------+-------+---------------------------------------------|
| 6 | í 0 | Pulse dial PPS select 10PPS |
| | | |
| | 1 | Pulse dial PPS select 20PPS |
| | | |
| | 8 | (00001000b) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S21 |
|------------------------------------------------------------|
| Format | AT [cmds] S21=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-253 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects jack type, CTS/DCD/DSR signals, low |
| | DTR action, and the long space disconnect |
| | function. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-----------------------------------------------------|
| 4, 3 | 0 | &D0 selected |
| | | |
| | 1 | &D1 selected |
| | | |
| | 10 | &D2 selected |
| | | |
| | 11 | &D3 selected |
|------+-----------------------------------------------------|
| 5 | 0 | &C0 selected |
| | | |
| | 1 | &C1 selected |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S22 |
|------------------------------------------------------------|
| Format | AT [cmds] S22=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume and controls, |
| | limits results codes, and pulse dial |
| | make/break ratio. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 6 - | 0 | 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 |
| | | |
| | 111 | All result codes except dialtone detection |
| | | enabled |
| | | |
| | | All result codes enabled |
|------+-------+---------------------------------------------|
| 7 | 0 | 33/67ms at 10pps (Europe) |
| | | |
| | 1 | 39/61ms at 10pps (North America) |
|------+-------+---------------------------------------------|
| 112 | | (01110000b) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA CALLING TONE |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S35=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-1 |
|--------------+---------------------------------------------|
| Description: | Enable/disable data calling tone |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í S37=0 | Maximum modem speed |
|--------------+---------------------------------------------|
| S37=1 | Reserved |
|--------------+---------------------------------------------|
| S37=2 | 1200/75bps |
|--------------+---------------------------------------------|
| S37=3 | 300bps |
|--------------+---------------------------------------------|
| S37=4 | Reserved |
|--------------+---------------------------------------------|
| S37=5 | 1200bps |
|--------------+---------------------------------------------|
| S37=6 | 2400bps |
|--------------+---------------------------------------------|
| S37=7 | 4800bps |
|--------------+---------------------------------------------|
| S37=8 | 7200bps |
|--------------+---------------------------------------------|
| S37=9 | 9600bps |
|--------------+---------------------------------------------|
| S37=10 | 12.0Kbps |
|--------------+---------------------------------------------|
| S37=11 | 14.4Kbps |
|--------------+---------------------------------------------|
| S37=12 | 16.8Kbps |
|--------------+---------------------------------------------|
| S37=13 | 19.2Kbps |
|--------------+---------------------------------------------|
| S37=14 | 2.16Kbps |
|--------------+---------------------------------------------|
| S37=15 | 24.0Kbps |
|--------------+---------------------------------------------|
| S37=16 | 26.4Kbps |
|--------------+---------------------------------------------|
| S37=17 | 28.8Kbps |
|--------------+---------------------------------------------|
| S37=18 | 31.2Kbps |
|--------------+---------------------------------------------|
| S37=19 | 33.6Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ETC STARTUP AUTORATING |
|------------------------------------------------------------|
| Format | AT [cmds] S40=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-2 |
|--------------+---------------------------------------------|
| Description: | Controls ETC startup autorating |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S40=0 | Startup with normal autorating |
|--------------+---------------------------------------------|
| S40=1 | Startup at initial rate of 4800 or below |
|--------------+---------------------------------------------|
| S40=2 | Startup at initial rate of 9600 or below |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FEATURE NEGOTIATION OPTIONS |
|------------------------------------------------------------|
| Type: | Register |
|------------------------------------------------------------|
| Format: | AT [cmds] S48=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects active error correction and |
| | compression protocols |
|------------------------------------------------------------|
| Command | Function |
|----------------+-------------------------------------------|
| í S48=7 | Detection negotiation and XID negotiation |
| | enabled |
|----------------+-------------------------------------------|
| S48=128 | Fall-back to options set in S36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL PHONE STATUS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S90=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the status of the local phone |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S90=0 | Local phone on-hook |
|--------------+---------------------------------------------|
| S90=1 | Local phone off-hook |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NEGOTIATION FALLBACK |
|------------------------------------------------------------|
| 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, 2 | Hang up |
|--------------+---------------------------------------------|
| S36=1, 3 | Fall back to an asynchronous connection |
|--------------+---------------------------------------------|
| S36=4, 6 | Attempt a connection at MNP; if that fails, |
| | hang up. |
|--------------+---------------------------------------------|
| S36=5, 7 | Attempt a connection at MNP; if that fails, |
| | attempt a direct connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP MODE TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S89? [cmds] |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0, 5-255 |
|--------------+---------------------------------------------|
| Description: | Controls the duration of the sleep mode |
| | timer |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNTHETIC RING FREQUENCY |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S33=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-5 |
|--------------+---------------------------------------------|
| Description: | Specifies a synthetic ring frequency |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNTHETIC RING VOLUME |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 16 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | dB |
|--------------+---------------------------------------------|
| Description: | Specifies a synthetic ring volume |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMISSION LEVEL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S92=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the signal level for transmission for |
| | direct connect |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMISSION LEVEL - LEASED-LINE |
|------------------------------------------------------------|
| Type | Register or Configuration |
|-------------+----------------------------------------------|
| Format | AT [cmds] S91=n [cmds] |
|-------------+----------------------------------------------|
| Default | 15 |
|-------------+----------------------------------------------|
| Range | 6-15 |
|-------------+----------------------------------------------|
| Unit | -1 dB |
|-------------+----------------------------------------------|
| Description | Sets the signal level for transmission over |
| | leased-lines |
|------------------------------------------------------------|
| Note: Command effective only for Japan. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.34 MODULATION |
|------------------------------------------------------------|
| Format | AT [cmds] S28=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 1 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Minutes |
|--------------+---------------------------------------------|
| Description: | Enable/disable V.34 modulation |