MULTITECH SYSTEMS, INC.
MT2834PCS/C, MT2834PCS/CI
|
Modem Type |
Data (synchronous/asynchronous)/Fax/Simultaneous voice |
|
Maximum Data Rate |
28.8Kbps |
|
Maximum Fax Rate |
14.4Kbps |
|
Data Bus |
External |
|
Fax Class |
Class I & II |
|
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 AT&T V.32terbo Multitech MSP |
|
Fax Modulation Protocol |
ITU-T V.17, V.21CH2, V.27ter, V.29 |
|
Error Correction/Compression |
MNP2-5, V.42, V.42bis |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Line in |
CN1 |
Line out |
CN2 |
|
INTERRUPT SELECTION | ||||||||||
|
IRQ |
JP1/A |
JP1/B |
JP1/C |
JP1/D |
JP1/E |
JP1/F |
JP1/G |
JP1/H |
JP1/I |
JP1/J |
|
í 3 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
2/9 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
4 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
|
5 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
|
7 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
|
10 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
|
11 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
12 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
|
14 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
|
16 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
|
BASE I/O ADDRESS SELECTION | |||||||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
|
100h |
Off |
On |
On |
On |
On |
On |
On |
|
200h |
On |
Off |
On |
On |
On |
On |
On |
|
300h |
Off |
Off |
On |
On |
On |
On |
On |
|
400h |
On |
On |
Off |
On |
On |
On |
On |
|
500h |
Off |
On |
Off |
On |
On |
On |
On |
|
2E8h (COM4:) |
Off |
On |
Off |
Off |
Off |
On |
Off |
|
í 2F8h (COM2:) |
Off |
Off |
Off |
Off |
Off |
On |
Off |
|
3D8h |
Off |
Off |
On |
Off |
Off |
Off |
Off |
|
3E0h |
On |
On |
Off |
Off |
Off |
Off |
Off |
|
3E8h (COM3:) |
Off |
On |
Off |
Off |
Off |
Off |
Off |
|
3F0h |
On |
Off |
Off |
Off |
Off |
Off |
Off |
|
3F8h (COM1:) |
Off |
Off |
Off |
Off |
Off |
Off |
Off |
Note: A total of 127 memory base I/O address settings are available. The switches are a binary representation of the hexadecimal addresses. Switch SW1/1 is the Least Significant Bit and switch SW1/7 is the Most Significant Bit. The switches have the following decimal values: switch SW1/1=8, SW1/2=16, SW1/3=32, SW1/4=64, SW1/5=128, SW1/6=256, SW1/7=512.Turn off the switches and add the values of the off switches to obtain the correct base I/O address. (on=0, off=1) | |||||||
|
FACTORY CONFIGURED - DO NOT ALTER | |
|
Switch |
Position |
|
SW1/8 |
On |
Proprietary Command Set
|
AMBIENT NOISE SENSITIVITY | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >HVn [cmds] |
|
Example: |
AT >HV10 >C0 <CR> |
|
Default: |
7 |
|
Range: |
0-14 |
|
Description: |
Sets the modems sensitivity to ambient noise, with 0 being the most sensitive. |
|
AUTO-RELIABLE TIME BUFFER CONFIGURATION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $An [cmds] |
|
Example: |
AT $A1 &W <CR> |
|
Description: |
Controls the handling of incoming data during auto-reliable time period. |
|
Command |
Function |
|
í $A0 |
Data is discarded. |
|
$A1 |
Data is buffered. |
|
BIT MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $EBn [cmds] |
|
Example: |
AT $EB1 E1 <CR> |
|
Description: |
Selects 10- or 11-bit mode. |
|
Command |
Function |
|
í $EB0 |
Sets 10-bit mode. |
|
$EB1 |
Sets 11-bit mode. |
|
CALLBACK ATTEMPTS | |
|
Type: |
Register |
|
Format: |
AT [cmds] S16=n [cmds] |
|
Example: |
ATS16=6 <CR> |
|
Default: |
4 |
|
Range: |
1-255 |
|
Unit: |
1 attempt |
|
Description: |
Sets the maximum number of login attempts after initial callback connection. |
|
CALLBACK NUMBER | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] [+/-]DT <#>Nnn |
|
Examples: |
AT#DB2 +-DT555-1212N10 <CR> |
|
Description: |
Sets the phone number associated with the password at memory location nn. |
|
Command |
Function |
|
+DT |
Modem will initiate callback on successful login. |
|
-DT |
Modem will allow immediate entry on successful login without callback. |
|
+-DT |
If password is followed by a -, modem will allow immediate entry. If password is followed by a + or nothing, modem will initiate callback. |
|
CALLBACK PARITY | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Pn [cmds] |
|
Example: |
AT #P0 #DB1 <CR> |
|
Description: |
Sets the parity of the modem when in callback mode. |
|
Command |
Function |
|
í #P0 |
No parity. |
|
#P1 |
Odd parity. |
|
#P2 |
Even parity. |
|
CALLBACK PASSWORD | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #CBNnnxxxx |
|
Example: |
AT#DB2 #CBN09snarf <CR> |
|
Description: |
Sets the callback password at memory location nn to xxxx. The password must be between 6 and 10 characters, inclusive. |
|
CALLBACK SECURITY | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #DBn [cmds] |
|
Example: |
AT #DB1 S0=1 <CR> |
|
Description: |
Sets the security level of the callback function. |
|
Command |
Function |
|
í #DB0 |
Disables security and clears callback memory. |
|
#DB1 |
Enables remote security only. |
|
#DB2 |
Enables local and remote security. |
|
COMMAND ESCAPE TYPE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] %En [cmds] |
|
Example: |
AT %E3 &W <CR> |
|
Description: |
Sets type and response of command escape sequence. |
|
Command |
Function |
|
%E0 |
Command escape disabled. |
|
í %E1 |
TIES escape (+++AT...) |
|
%E2 |
<BREAK> AT method. |
|
%E3 |
Both TIES and BREAK methods. |
|
%E4 |
OK response to command escape disabled. |
|
%E5 |
OK response to command escape enabled. |
|
COMMAND SET | |
|
Type: |
Configuration |
|
Format: |
AT &Qn |
|
Example: |
AT &Q1 <CR> |
|
Description: |
Selects standard Hayes or custom command sets. |
|
Command |
Function |
|
í &Q0 |
Multi-Tech custom command set enabled. |
|
&Q1 |
Standard Hayes command set enabled. |
|
COMPRESSION | |
|
Type: |
Configuration |
|
Format: |
AT &En |
|
Example: |
AT &E15 #L0 <CR> |
|
Description: |
Selects data compression. |
|
Command |
Function |
|
&E14 |
Data compression disabled. |
|
í &E15 |
Data compression enabled. |
|
COMPRESSION MODE | |
|
Type: |
Configuration |
|
Format: |
AT #Ln |
|
Example: |
AT #L2 DT555-1212 <CR> |
|
Description: |
Selects active compression protocols. |
|
Command |
Function |
|
í #L0 |
V.42 negotiation enabled. |
|
#L1 |
MNP negotiation enabled. |
|
#L2 |
LAP-M negotiation enabled. |
|
#L3 |
LAP-M enabled, no negotiation. |
|
CTS SIGNAL | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &RFn [cmds] |
|
Example: |
AT &RF0 <CR> |
|
Description: |
Selects the function of the CTS signal. |
|
Command |
Function |
|
&RF0 |
CTS is set to RTS. |
|
í &RF1 |
CTS is independent of RTS. |
|
DETECTION MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >DTn [cmds] |
|
Example: |
AT >DT1 <CR> |
|
Description: |
Sets the responses the modem will detect. |
|
Command |
Function |
|
í >DT0 |
Detection disabled. |
|
>DT1 |
DTMF detection enabled. |
|
>DT2 |
All signals will be detected. |
|
DIAL STORED PHONE NUMBER | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] Nn1 [Nn2, Nn3...] |
|
Example: |
ATM0 N1N3N5 <CR> |
|
Description: |
Dials stored phone number(s). If the first number is busy, the modem will proceed to the next number in the list. |
|
DSP INPUT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >DIn [cmds] |
|
Example: |
AT >DI4 >DO6 <CR> |
|
Description: |
Sets the input source of the digital signal processor. |
|
Command |
Function |
|
í >DI0 |
Input disabled. |
|
>DI1 |
Input from line in. |
|
>DI2 |
Input from handset. |
|
>DI3 |
Input from phone. |
|
>DI4 |
Input from PC. |
|
>DI5 |
Input from voicemail. |
|
>DI6 |
Input from Digital Simultaneous Voice Mode session. |
|
DSP OUTPUT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >DOn [cmds] |
|
Example: |
AT >DI5 >DO3 <CR> |
|
Description: |
Sets the output device of the digital signal processor. |
|
Command |
Function |
|
í >DO0 |
Output disabled. |
|
>DO1 |
Output to line out. |
|
>DO2 |
Output to handset. |
|
>DO3 |
Output to phone. |
|
>DO4 |
Output to PC. |
|
>DO5 |
Output to voicemail. |
|
>DO6 |
Output to Digital Simultaneous Voice Mode session. |
|
DSR SIGNAL | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &SFn [cmds] |
|
Example: |
AT &SF0 <CR> |
|
Description: |
Selects the function of the DSR signal. |
|
Command |
Function |
|
í &SF0 |
DSR is set to CD. |
|
&SF1 |
DSR is independent of CD. |
|
DSVD TALK ANYTIME™ | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >Cn [cmds] |
|
Example: |
AT >C1 O <CR> |
|
Description: |
Enables DSVD (Digital Simultaneous Voice Data) connection. |
|
Command |
Function |
|
í >C0 |
Talk Anytime™ enabled. |
|
>C1 |
Talk Anytime™ disabled. |
|
DSVD | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] >VDn [cmds] |
|
Example: |
AT >VD1 O <CR> |
|
Description: |
Activates DSVD (Digital Simultaneous Voice Data) connection. |
|
Command |
Function |
|
í >VD0 |
Deactivates DSVD. |
|
>VD1 |
Activates DSVD. |
|
DTR DIALING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $Dn [cmds] |
|
Example: |
AT $D1 DT555-1212 <CR> |
|
Description: |
Turns DTR dialing on and off. |
|
Command |
Function |
|
í $D0 |
DTR dialing disabled. |
|
$D1 |
DTR dialing enabled. |
|
DTR TIMEOUT | |
|
Type: |
Register |
|
Format: |
AT [cmds] S24=n [cmds] |
|
Example: |
ATS24=40 <CR> |
|
Default: |
20 |
|
Range: |
0-255 |
|
Unit: |
50 ms |
|
Description: |
Sets the time to drop the DTR signal to hangup. |
|
ERASE CALLBACK PASSWORD | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] #RCBNn [cmds] |
|
Example: |
AT #RCBN05 #RDN05 <CR> |
|
Description: |
Erases the callback password at the memory location specified. |
|
ERASE CALLBACK NUMBER | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] #RDNn [cmds] |
|
Example: |
AT #RCBN05 #RDN05 <CR> |
|
Description: |
Erases the callback phone number at the memory location specified. |
|
ERROR CORRECTION DISABLE ON CONNECT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $Fn [cmds] |
|
Example: |
AT $F1 DT555-1212 <CR> |
|
Description: |
Selects whether error correction can be disabled by a <CR> while handshaking. |
|
Command |
Function |
|
$F0 |
Error correction handshake interrupt disabled. |
|
í $F1 |
Error correction handshake interrupt enabled. |
|
ESCAPE SEQUENCE BUFFER SIZE | |
|
Type: |
Register |
|
Format: |
AT [cmds] S34=n [cmds] |
|
Example: |
ATS34=30 <CR> |
|
Default: |
10 |
|
Range: |
0-60 |
|
Unit: |
1 byte |
|
Description: |
Sets the size of the buffer used to store commands during an escape sequence. |
|
ESCAPE SEQUENCE - OUT OF BAND | |
|
Type: |
Immediate |
|
Format: |
<BREAK> AT [cmds]<CR> |
|
Example: |
<BREAK> AT #F1<CR> |
|
Description: |
Puts the modem in Command Mode. |
|
Notes: |
Do not precede this command with AT. <BREAK> refers to the hardware modem break signal. |
|
ESCAPE SEQUENCE TIMEOUT | |
|
Type: |
Register |
|
Format: |
AT [cmds] S32=n [cmds] |
|
Example: |
ATS32=30 <CR> |
|
Default: |
20 |
|
Range: |
0-255 |
|
Unit: |
1 second |
|
Description: |
Sets the maximum amount of time the modem will wait for a <CR> while executing an escape sequence. |
|
FACTORY DEFAULTS | |
|
Type: |
Immediate/Configuration |
|
Format: |
AT &F[n] |
|
Example: |
AT &F8 <CR> |
|
Description: |
Loads factory defaults, or sets write protect on NVRAM. |
|
Command |
Function |
|
&F |
Reloads defaults by setting. (Immediate, see below.) |
|
í &F8 |
Sets &F to read factory defaults from ROM, and disables NVRAM write protect. |
|
&F9 |
Sets &F to read defaults from NVRAM, and enables write-protect. |
|
FAILED PASSWORD ATTEMPTS | |
|
Type: |
Register |
|
Format: |
AT [cmds] S26? |
|
Example: |
ATS26? <CR> |
|
Default: |
Read-only |
|
Range: |
0-255 |
|
Unit: |
1 attempt |
|
Description: |
This register stores the number of failed password attempts. |
|
FALLBACK MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Fn [cmds] |
|
Example: |
AT #F1 O <CR> |
|
Description: |
Sets direction of fallback. |
|
Command |
Function |
|
#F0 |
Fallback disabled. |
|
#F1 |
Fallback from 28.8Kbps to 2400bps as line quality degrades. |
|
í #F2 |
Fallback from 2400bps to 28.8Kbps as line quality improves. |
|
FLOW CONTROL NORMAL MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E11 O <CR> |
|
Description: |
Selects normal flow control. |
|
Command |
Function |
|
í &E10 |
Normal mode disabled. |
|
&E11 |
Normal mode enabled. |
|
FLOW CONTROL TYPE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E4 &W <CR> |
|
Description: |
Sets type of flow control used by modem. |
|
Command |
Function |
|
&E3 |
Flow control disabled. |
|
í &E4 |
CTS/RTS flow control enabled. |
|
&E5 |
XON/XOFF flow control enabled. |
|
HANDSHAKE ATTEMPTS | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #An [cmds] |
|
Example: |
AT #A1 #L3 <CR> |
|
Description: |
Configures the initial handshake phase. |
|
Command |
Function |
|
#A0 |
Attempts in order: 28.8Kbps, 24Kbps, 21.6Kbps, 19.2Kbps, 16.8Kbps, 14.4Kbps, 12Kbps, 9600bps, 4800bps, 2400bps, 1200bps, 300bps. |
|
#A1 |
Attempts only 28.8Kbps. |
|
#A2 |
Attempts in order: 28.8Kbps, 24Kbps, 21.6Kbps, 19.2Kbps, 16.8Kbps, 14.4Kbps, 12Kbps, 9600bps, 4800bps. |
|
#A3 |
Attempts in order: 2400bps, 1200bps, 300bps. |
|
HELP SCREENS | |
|
Type: |
Immediate |
|
Format: |
AT $Hn |
|
Example: |
AT $H1 <CR> |
|
Description: |
Shows modem help screens. |
|
Command |
Function |
|
$H1 |
Shows help screen 1. |
|
$H2 |
Shows help screen 2. |
|
$H3 |
Shows help screen 3. |
|
LIST CONFIGURATION | |
|
Type: |
Immediate |
|
Format: |
AT Ln |
|
Example: |
AT L5 <CR> |
|
Description: |
Lists modem configuration. |
|
Command |
Function |
|
L5 |
Lists all settings. |
|
L6 |
Lists the values of all S-registers. |
|
L7 |
Lists extended parameters. |
|
L8 |
Lists current diagnostics. |
|
LINE CONNECTION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >PHn [cmds] |
|
Example: |
AT >PH1 <CR> |
|
Description: |
Selects the operation mode of the modem. |
|
Command |
Function |
|
í >PH0 |
Modem is in data mode. |
|
>PH1 |
Modem is in voice mode. |
|
LOCAL SERIAL PORT SPEED | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $SBnnn [cmds] |
|
Example: |
AT $MB9600 $SB19200 <CR> |
|
Description: |
Sets serial port speed. |
|
Command |
Function |
|
$SB300 |
Sets 300bps speed. |
|
$SB1200 |
Sets 1200bps speed. |
|
$SB2400 |
Sets 2400bps speed. |
|
$SB4800 |
Sets 4800bps speed. |
|
$SB9600 |
Sets 9600bps speed. |
|
$SB19200 |
Sets 19.2Kbps speed. |
|
$SB38400 |
Sets 38.4Kbps speed. |
|
$SB57600 |
Sets 57.6Kbps speed. |
|
$SB115200 |
Sets 115.2Kbps speed. |
|
LOCK SERIAL PORT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $BAn [cmds] |
|
Example: |
AT $SB57600 $BA0 <CR> |
|
Description: |
Sets operation of serial port speed. |
|
Command |
Function |
|
í $BA0 |
Serial speed locked at rate set by $SB. |
|
$BA1 |
Serial speed follows connect speed, ignoring $SB. |
|
LOGIN PASSWORD | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Ixxxx |
|
Example: |
AT #IMicroHouse <CR> |
|
Description: |
Sets the login password to xxxx. The password must be between 6 and 10 characters, case sensitive. It defaults to MULTI-TECH. |
|
MAXIMUM BLOCK SIZE FOR TRANSMISSION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &BSn [cmds] |
|
Example: |
AT &BS1 &MB28800 <CR> |
|
Description: |
Sets the maximum transmittable block size. |
|
Command |
Function |
|
&BS0 |
Maximum block size is 64 characters. |
|
í &BS1 |
Maximum block size is 128 characters for LAP-M, and 256 characters for MNP. |
|
MICROPHONE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >Mn>MVn [cmds] |
|
Example: |
AT >M2>MV5 <CR> |
|
Description: |
Turns the microphone of the attached telephone handset on or off. |
|
Note: |
An >MV command must be issued on the same line. |
|
Command |
Function |
|
>M0 |
Disables microphone. |
|
í >M2 |
Enables microphone. |
|
MICROPHONE SENSITIVITY | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >MVn [cmds] |
|
Example: |
AT >MV6 <CR> |
|
Default: |
None |
|
Range: |
0-14 |
|
Description: |
Sets the microphones sensitivity, with 0 being the most sensitive. |
|
MSP MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >%Pn [cmds] |
|
Example: |
AT >%P1 <CR> |
|
Description: |
Enables or disables Multitech Supervisory Protocol (MSP). |
|
Command |
Function |
|
í %P0 |
MSP disabled. |
|
%P1 |
MSP enabled. |
|
PACING | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E13 <CR> |
|
Description: |
Selects ENQ/ACK pacing. |
|
Command |
Function |
|
&E12 |
Disables ENQ/ACK pacing. |
|
í &E13 |
Enables ENQ/ACK pacing. |
|
PACING - ENQ/ACK | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E9 <CR> |
|
Description: |
Selects ENQ/ACK pacing. |
|
Command |
Function |
|
í &E8 |
Enables ENQ/ACK pacing. |
|
&E9 |
Disables ENQ/ACK pacing. |
|
REDIAL | |
|
Type: |
Immediate |
|
Format: |
ATA: |
|
Example: |
ATA: <CR> |
|
Description: |
Redials the last number dialed until it is no longer busy. |
|
REMOTE CONNECT SPEED | |
|
Type: |
Configuration |
|
Format: |
AT $MBnnn |
|
Example: |
AT $MB9600 $SB19200 <CR> |
|
Description: |
Sets maximum remote connect speed. |
|
Command |
Function |
|
$MB75 |
Sets V.23 (1200bps/75bps bi-directional). |
|
$MB300 |
Sets 300bps connect. |
|
$MB1200 |
Sets 1200bps connect. |
|
$MB2400 |
Sets 2400bps connect. |
|
$MB4800 |
Sets 4800bps connect. |
|
$MB9600 |
Sets 9600bps connect. |
|
$MB14400 |
Sets 14.4Kbps connect. |
|
$MB19200 |
Sets 19.2Kbps connect. |
|
$MB28800 |
Sets 28.8Kbps connect. |
|
RETRANSMIT FAIL ACTION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] $Rn [cmds] |
|
Example: |
AT $R1 <CR> |
|
Description: |
Sets whether the modem gives up on a bad connection. |
|
Command |
Function |
|
í $R0 |
Hang up after 12 failed retransmissions. |
|
$R1 |
Do not hang up after 12 failed retransmissions. |
|
SETUP INACTIVITY TIMER | |
|
Type: |
Register |
|
Format: |
AT [cmds] S29=n [cmds] |
|
Example: |
ATS29=5 <CR> |
|
Default: |
20 |
|
Range: |
1-255 |
|
Unit: |
1 minute |
|
Description: |
Sets the maximum amount of time between commands until the setup password must be re-entered. |
|
SPEAKER | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >Sn>SVn [cmds] |
|
Example: |
AT >S2>SV5 <CR> |
|
Description: |
Turns the speaker of the attached telephone handset on or off. |
|
Note: |
An >SV command must be issued on the same line. |
|
Command |
Function |
|
>S0 |
Disables speaker. |
|
í >S2 |
Enables speaker. |
|
SPEAKER VOLUME | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >SVn [cmds] |
|
Example: |
AT >SV6 <CR> |
|
Default: |
None |
|
Range: |
0-14 |
|
Description: |
Sets the speakers volume, with 0 being the most sensitive. |
|
STORE PHONE NUMBER IN NVRAM | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] D <#>Nn [dialstring] |
|
Example: |
ATD555-1212N1 <CR> |
|
Description: |
Stores a phone number in the modems memory. |
|
TIME UNTIL HANG UP ON LOW DTR | |
|
Type: |
Register |
|
Format: |
AT [cmds] S36=n [cmds] |
|
Example: |
ATS36=5 <CR> |
|
Default: |
0 |
|
Range: |
0-255 |
|
Unit: |
1 second |
|
Description: |
Sets the maximum amount of time the modem will wait to hang up after the DTR signal goes low. |
|
TIME UNTIL PICK UP ON HIGH DTR | |
|
Type: |
Register |
|
Format: |
AT [cmds] S37=n [cmds] |
|
Example: |
ATS37=5 <CR> |
|
Default: |
0 |
|
Range: |
0-255 |
|
Unit: |
1 second |
|
Description: |
Sets the maximum amount of time the modem will wait to pick up after the DTR signal goes high. |
|
TRELLIS MODULATION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Tn [cmds] |
|
Example: |
AT #T1 <CR> |
|
Description: |
Controls Trellis Coded Modulation. |
|
Command |
Function |
|
#T0 |
Disables TCM. |
|
í #T1 |
Enables TCM. |
|
V.32terbo CONTROL | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Vn [cmds] |
|
Example: |
AT #V1 DT555-1212 <CR> |
|
Description: |
Controls the V.32terbo protocol in answer mode. |
|
Command |
Function |
|
í #V0 |
V.32terbo enabled. |
|
#V1 |
V.32terbo disabled. |
|
V.42 MODE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E0 <CR> |
|
Description: |
Configures the operation of V.42 mode. |
|
Command |
Function |
|
&E0 |
Error correction disabled. |
|
í &E1 |
V.42 set to auto-reliable. |
|
&E2 |
V.42 set to reliable. |
|
VOICE BANDWIDTH | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] >An [cmds] |
|
Example: |
AT >A0 <CR> |
|
Description: |
Sets the bandwidth reserved for voice transmission. |
|
Command |
Function |
|
>A0 |
Voice bandwidth set to 9600bps. |
|
>A1 |
Voice bandwidth set to 16Kbps. |
|
í >A2 |
Voice bandwidth set to 16Kbps if connected at 19.2Kbps or above, or 9600bps otherwise. |
|
XOFF SEND | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] #Xn [cmds] |
|
Example: |
AT #X1 <CR> |
|
Description: |
Selects how XOFF signal is sent. |
|
Command |
Function |
|
í #X0 |
Single XOFF character sent until ready. |
|
#X1 |
Multiple XOFF characters sent until ready. |
|
XON/XOFF PASS-THROUGH | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] &En [cmds] |
|
Example: |
AT &E7 O <CR> |
|
Description: |
Selects whether XON/XOFF signals are sent to remote modem. |
|
Command |
Function |
|
í &E6 |
XON/XOFF signals trapped by local modem. |
|
&E7 |
XON/XOFF passed through local modem. |