MEDIAFORTE PRODUCTS PTE., LTD.
COMMLINK 28.8 INTERAL MODEM
|
Card Type |
Modem/Fax card |
|
Chip Set |
Unidentified |
|
I/O Options |
Line out (RJ-11), line in (RJ-11) |
|
Maximum Modem Rate |
28.8Kbps |
|
Maximum Fax Rate |
14.4Kbps |
|
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V34 |
|
Fax Modulation Protocol |
ITU-T V.17, V.27ter, V.29 |
|
Error Correction/Compression |
MNP5, V.42, V.42bis |
|
Fax Class |
Class I & II |
|
Data Bus |
16-bit ISA |
|
CONNECTIONS | ||||||
|
Function |
Label |
Function |
Label | |||
|
Line out |
CN1 |
Line in |
CN2 | |||
|
SUPPORTED COMMAND SET |
|
Basic AT Commands |
|
AT, ‘+++’, A/ |
|
A, C, E, H, L, M, O, P, Q, S, T, V, X, Y, Z |
|
&C, &F, &G &Q, &U &W, &Y, &Z |
|
Extended AT Commands |
|
\A, \B, \G, \L, \N |
|
%C, %L, %Q |
|
S Registers |
|
S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30, S32, S33, S38, S91 |
|
Voice Commands |
|
#CID, #MDL?, #MFR?, #REV?, #CLS, #SPK, #TL, #VBQ?, #VBT, #VCI?, #VRA, #VRX, #VSK, #VSS |
|
#VTD, #VTS, #VTX |
|
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 |
|
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 1200bps |
|
í B1 |
Bell 212A at 1200bps |
|
B2 |
ITU-T V.23 at 1200bps |
|
CONFIGURATION PROFILES | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] &V [cmds] |
|
Description: |
Displays active and stored configuration profiles |
|
Command |
Function |
|
&V0 |
Display active profile |
|
&V1 |
Display stored profiles |
|
&V2 |
Display stored telephone numbers |
|
DATA SET READY (DSR) | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Sn [cmds] |
|
Description: |
Selects DSR options |
|
Command |
Function |
|
&S0 |
DSR forced high |
|
&S1 |
DSR on in on-line mode, off in command mode |
|
DATA TERMINAL READY (DTR) | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Dn [cmds] |
|
Description: |
Selects modem response to DTR |
|
Command |
Function |
|
í &D0 |
DTR is ignored (assumed on) |
&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 |
|
&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 |
|
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^ |
1300Hz calling tone enabled |
|
D; |
Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. |
|
EXTENDED RESULT CODES | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Wn [cmds] |
|
Description: |
Enables selection of additional result codes when S95=0; otherwise, S95 takes precedence. |
|
Command |
Function |
|
W0 |
Report DTE speed |
|
W1 |
Report result code |
|
W2 |
Report DCE speed |
|
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 |
XON/XOFF and RTS/CTS flow control enabled |
|
PULSE DIALING RATIO | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Pn [cmds] |
|
Description: |
Selects pulse dial make/break ratio |
|
Command |
Function |
|
&P0 |
39/61ms at 10pps (North America) |
|
&P1 |
33/67ms at 10pps (Europe) |
|
REPORT INFORMATION | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] In [cmds] |
|
Description: |
Displays information requested |
|
Command |
Function |
|
I0 |
Reports product code |
|
I1 |
Reports hardware variation code |
|
I2 |
Reports internal code |
|
I3 |
Reports software revision number |
|
I4 |
Reports product feature |
|
TEST MODES | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] &Tn |
|
Description: |
Selects test options |
|
Command |
Function |
|
&T0 |
End current test |
|
&T1 |
Begin local analog loopback test |
|
TRELLIS CODING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &Un [cmds] |
|
Description: |
Enables/disables trellis coding |
|
Command |
Function |
|
í &U0 |
Trellis coding enabled |
|
&U1 |
Trellis coding disabled |
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 |
Fast hang-up |
|
BREAK TYPE | ||||
|
Type: |
Configuration | |||
|
Format: |
AT [cmds] \Kn [cmds] | |||
|
Description: |
Configures action of break signal | |||
|
Command |
Break from DTE during NORMAL or MNP mode |
Break from modem during DIRECT mode |
Break from remote modem during NORMAL mode | |
|
\K0 |
Online command mode enabled, send no break to remote modem |
Send break to remote modem, online command mode enabled |
Buffers cleared, break sent to DTE | |
|
\K1 |
Break sent to remote modem and buffered cleared |
Send break to remote modem, online command mode enabled |
Buffers cleared, break sent to DTE | |
|
\K2 |
Online command mode enabled, send no break to remote modem |
Send break to remote modem |
Break sent immediately to DTE | |
|
\K3 |
Send break to remote modem immediately |
Send break to remote modem, online command mode enabled |
Break sent immediately to DTE | |
|
\K4 |
Online command mode enabled, send no break to remote modem |
Send break to remote modem |
Break sent with received data to the DTE | |
|
\K5 |
Send break with transmitted data |
Send break to remote modem |
Break sent with received data to the DTE | |
S(status) -REGISTERS
|
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 |
|
6 |
Remote modem failed to respond to 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 |
|
20 |
Long space disconnect time limit reached |
|
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=3 |
Connect at 300bps |
|
S37=4 |
Connect at 1200bps |
|
S37=6 |
Connect at 2400bps |
|
S37=7 |
Connect at 4800bps |
|
S37=8 |
Connect at 7200bps |
|
S37=9 |
Connect at 9600bps |
|
S37=10 |
Connect at 12.0Kbps |
|
S37=11 |
Connect at 14.4Kbps |
|
S37=12 |
Connect at 28.8Kbps |
|
V.34 DATA RATE | |
|
Type: |
Register |
|
Format |
AT [cmds] S34=n [cmds] |
|
Range |
0-11 |
|
Description: |
Sets the maximum bit rate for V.34. Default is S34=11 (28.8Kbps) |
|
V.34 SYMBOL RATE | |
|
Type: |
Register |
|
Format |
AT [cmds] S35=n [cmds] |
|
Range |
0-5 |
|
Description: |
Sets the minimum baud rate for V.34. Default is S35=0 (2400bps) |
AT Voice Command Set
|
RECORDING GAIN | ||
|
Type: |
Immediate | |
|
Format: |
AT [cmds] #RG=hhhh [cmds] | |
|
Default: |
7FFF | |
|
Range: |
0000 - 7FFF | |
|
Unit: |
Unidentified (hexadecimal) | |
|
Description: |
Sets the voice recording gain level | |
|
SILENCE DETECTION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VSD=n [cmds] |
|
Description: |
Enables/disables voice receive mode silence detection. |
|
Note: |
Function not supported by modem |
|
VOICE DEVICE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VLS=n [cmds] |
|
Description: |
Selects the I/O device for the DSP chip. |
|
Note: |
This modem may not support all options listed below. The #VLS? Command will display the available options. |
|
Command |
Function |
|
í #VLS=0 |
Telephone line and handset used for voice I/O. |
|
#VLS=1 |
Telephone handset used for voice I/O. |
|
#VLS=2 |
Internal speaker only used for voice I/O. |
|
#VLS=3 |
External microphone only used for voice I/O. |
|
#VLS=4 |
Telephone line and handset used for voice I/O; internal speaker enabled. |
|
#VLS=6 |
Speakerphone used for voice I/O. |
|
VOICE - LOCAL SERIAL PORT SPEED | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #BDR=n [cmds] |
|
Range: |
0-48 |
|
Unit: |
2400 baud (rate = n * 2400) |
|
Description: |
Sets the speed of the local serial port when in voice mode. |
|
VOICE RING DETECT TIME | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VRN=n [cmds] |
|
Default: |
Unidentified |
|
Range: |
0-255 |
|
Unit: |
10ms |
|
Description: |
Sets the maximum time the modem will wait for the remote station to ring before it assumes that it went off-hook before it rang. |
|
VOICE SAMPLE QUALITY | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VBS=n [cmds] |
|
Description: |
Selects the number of bits per sample that the modem records. |
|
Note: |
Modem only supports 4 bits per sample in ADPCM encoding. |
|
VOICE SAMPLING RATE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VSR=n [cmds] |
|
Description: |
Sets the sampling rate used when recording voice signals. |
|
Note: |
Modem only supports a sampling rate to 8000Hz |
|
VOICE SILENCE DETECTION TIME | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #VSP=n [cmds] |
|
Default: |
55 |
|
Range: |
0 - 255 |
|
Unit: |
.1 second |
|
Description: |
Sets the minimum amount of silence that the modem will detect. |
