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COURIER V.34 FAX (INTERNAL)

U.S. ROBOTICS, INC.

COURIER V.34 FAX (INTERNAL)

Card Type

Fax, Modem (asynchronous, synchronous)

Chip Set

U.S. Robotics

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

8-bit ISA

Fax Class

Class I & II

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.23, V.25bis, V.32, V.32bis, V.34

Rockwell V.FC

U.S. Robotics HST, V.32terbo

Fax Modulation Protocol

ITU-T V.17, V.21, V.27ter, V.29

Error Correction/Compression

HST, MNP5, V.42, V.42bis

CONNECTIONS

Function

Label

Function

Label

Line out

CN1

Line in

CN2

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í DTR normal

SW1/A

Off

DTR forced high

SW1/A

On

í Verbose (word) format enabled

SW1/B

Off

Numeric format enabled

SW1/B

On

í Result code display enabled

SW1/C

On

Result code display disabled

SW1/C

Off

í Local echo enabled

SW1/D

Off

Local echo disabled

SW1/D

On

í Auto-answer disabled

SW1/E

On

Auto-answer enabled, off-hook on first ring

SW1/E

Off

í CD normal

SW1/F

Off

CD forced high

SW1/F

On

í Result code display enabled in both originate and answer mode

SW1/G

Off

Result code display enabled in originate mode only

SW1/G

On

í Smart mode

SW1/H

On

Dumb mode

SW1/H

Off

í Escape code response: modem goes on-hook, off-line command mode, returns ‘NO CARRIER’

SW1/I

Off

Escape code response: modem stays on-line, on-line command mode, returns ‘OK’

SW1/I

On

í Reset and load from profiles in NVRAM

SW1/J

Off

Reset and load from factory settings in ROM

SW1/J

On

SERIAL PORT ADDRESS

Setting

JP1/A

JP1/B

JP1/C

JP1/D

COM1 (3F8h)

Closed

Open

Open

Open

COM2 (2F8h)

Open

Closed

Open

Open

COM3 (3E8h)

Open

Open

Closed

Open

COM4 (2E8h)

Open

Open

Open

Closed

INTERRUPT SELECTION

Setting

JP2/A

JP2/B

JP2/C

JP2/D

JP2/E

2

Closed

Open

Open

Open

Open

3

Open

Closed

Open

Open

Open

4

Open

Open

Closed

Open

Open

5

Open

Open

Open

Closed

Open

7

Open

Open

Open

Open

Closed

Proprietary AT Command Set

ABORT

Type:

Immediate

Format:

Any key

Description:

Aborts answering/originating a call; modem hangs up.

ACCOUNT ACCESS

Type:

Immediate

Format:

AT%S=n <cr>

Description:

Acquire access to security accounts without disabling security. (n= local access password)

ANSWER

Type:

Immediate

Format:

AT [cmds] A

Description:

Enables answer mode; the modem goes off-hook.

ANSWER SEQUENCE

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the answer sequence the modem will use

Command

Function

í B0

ITU-T answer sequence enabled

B1

Bell answer sequence enabled, required for all HST Cellular calls.

ATTENTION

Type:

Immediate

Format:

AT [cmds]

Description:

Tells the modem that a command follows or use alone to test OK result code

BIT-MAPPED REGISTER S54

Format:

AT [cmds] S54=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Controls call indicate during V.34 operation and V.8 during V.34 operation.

Bit

Value

Function

5 - 0

000000

Not used

6

í 0

1

Call indicate during V.34 operation enabled

Call indicate during V.34 operation disabled

7

í 0

1

V.8 during V.34 operation enabled

V.8 during V.34 operation disabled

BIT-MAPPED REGISTER S13

Format

AT [cmds] S13=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Controls DTR reset, reverse operations, reset dialing, HST, MNP3, and custom applications.

Bit

Value

Function

0

í 0

1

DTR normal

Reset on low DTR

1

í 0

1

Normal auto answer operation

When ring is received, enter originate and listen for answer tone

2

í 0

1

Immediate result code display

Pause 250msec before displaying result codes

3

í 0

1

DTR dialing disabled

DTR dialing enabled

4

í 0

1

Reset dialing disabled

Reset dialing enabled

5

í 0

1

Enable HST

Disable HST (used for testing V.32terbo in Dual Standard modems)

6

í 0

1

MNP 3 enabled

MNP 3 disabled

7

í 0

1

Custom applications

Custom applications

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Default:

0

Range:

0-255

Description:

Controls disconnect, and retrain

Bit

Value

Function

0

í 0

1

Normal operation

Disconnect on escape code

6 - 1

000000

Not used

7

í 0

1

Enable retrain

Disable retrain

BIT-MAPPED REGISTER S15

Format:

AT [cmds] S15=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Controls HST high frequency equalization, online fallback, back channel, non-error-correcting mode buffer, MNP4, BS/DEL switch, MNP compliance, and custom applications.

Bit

Value

Function

0

í 0

1

HST high frequency equalization enabled

HST high frequency equalization disabled

1

í 0

1

Online fallback enabled

Online fallback disabled

2

í 0

1

450bps back channel enabled

450bps back channel disabled

3

í 0

1

Non-error-correcting mode transmit buffer set to 1.5KB

Non-error-correcting mode transmit buffer set to 128 bytes

4

í 0

1

MNP 4 enabled

MNP 4 disabled

5

í 0

1

Use backspace key for delete disabled

Use backspace key for delete enabled

6

í 0

1

MNP normal

MNP adjusted for non-compliant modems

7

í 0

1

Custom applications

Custom applications

BIT-MAPPED REGISTER S27

Format:

AT [cmds] S27=n [cmds]

Default:

0

Range:

0-191

Unit:

Bit-mapped

Description:

Controls V.21, V.32 encoding and modulation, V.42 answer tone and handshake, and 9600 result codes.

Bit

Value

Function

0

í 0

1

V.21 disabled

V.21 enabled

1

í 0

1

V.32 non-trellis coding disabled

V.32 non-trellis coding enabled

2

í 0

1

V.32 modulation enabled

V.32 modulation disabled

3

í 0

1

2100Hz answer tone enabled

2100Hz answer tone disabled; allows V.42 modems to connect quicker.

5, 4

í 00

01

10

11

V.42 detect, LAPM and MNP enabled

V.42 detect and LAPM enabled

MNP enabled

LAPM enabled

6

í 0

Not used

7

í 0

1

Actual result codes displayed

Force 9600 result codes

BIT-MAPPED REGISTER S34

Format:

AT [cmds] S34=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Controls V.32bis/V.32terbo modulations, LED selection, MI/MIC, and remote access busy message.

Bit

Value

Function

0

í 0

1

V.32bis enabled

V.32bis disabled

1

í 0

1

Enhanced V.32bis enabled

Enhanced V.32bis disabled

2

í 0

1

V.32terbo fast retrain enabled

V.32terbo fast retrain disabled

3

í0

1

V.23 modulation disabled

V.23 modulation enabled

4

í 0

1

Change MR LED to DSR disabled

Change MR LED to DSR enabled

5

í 0

1

MI/MIC disabled

MI/MIC enabled

6

í 0

1

Remote access busy message enabled

Remote access busy message disabled

7

í 0

1

V.32terbo enabled

V.32terbo disabled

BIT-MAPPED REGISTER S56

Format:

AT [cmds] S56=n [cmds]

Default:

0

Range:

0-192

Description:

Controls enable/disable V.34 and V.FC.

Bit

Value

Function

5 - 0

000000

Not used

6

í 0

1

V.34 enabled

V.34 disabled

7

í 0

1

V.FC enabled

V.FC disabled

BREAK LENGTH

Type:

Register

Format:

AT [cmds] S21=n [cmds]

Default:

10

Range:

0-255

Unit:

.01 second

Description:

Sets the length of error control mode breaks sent from DCE to DTE.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Configures action of break signal

Command

Function

&Y0

Empty buffer only

í &Y1

Empties buffer and break is sent immediately

&Y2

Do not empty buffer and break is sent immediately

&Y3

Do not empty buffer and send break along with transmitted data

CARRIER DETECT (CD)

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Sets the CD signal

Note: Modem controls CD signal by the SW1/F setting, AT&Cn not saved in NVRAM. (External models only)

Command

Function

&C0

CD signal forced high

&C1

CD signal normal

CLOCK SOURCE - SYNCHRONOUS TRANSMIT

Type:

Configuration

Format:

AT [cmds] &Xn [cmds]

Description:

Selects DTE transmit clock source

Command

Function

í &X0

Modem generates clock

&X1

DTE generates clock

&X2

Modem generates clock from the receive carrier signal

COMPRESSION

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Selects data compression

Command

Function

&K0

Data compression disabled

í &K1

Auto enabled/disable data compression

&K2

Data compression enabled

&K3

V.42bis data compression only enabled

COMPRESSION AND ERROR CORRECTION

Type:

Register

Format

AT [cmds] S51=n [cmds]

Default:

0

Range:

0-7

Unit:

Bit-mapped

Description:

Selects compression and error correction for specific modulations, and controls handset exclusion delay

Bit

Value

Function

0

í 0

1

MNP/V.42 disabled during V.22 operation

MNP/V.42 disabled during V.22 operation

1

í 0

1

MNP/V.42 disabled during V.22bis operation

MNP/V.42 disabled during V.22bis operation

2

í 0

1

MNP/V.42 disabled during V.32/V.32bis/V.32terbo operation

MNP/V.42 disabled during V.32/V.32bis/V.32terbo operation

7

í 0

1

Handset exclusion delay disabled

Handset exclusion delay enabled

CONNECTION SPEED

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Sets connection speed, variable or fixed.

Command

Function

í &N0

Variable

&N1

300bps

&N2

1200bps

&N3

2400bps

&N4

4800bps

&N5

7200bps

&N6

9600bps

&N7

12Kbps

&N8

14.4Kbps

&N9

16.8Kbps (HST, V.32terbo, V.34 and V.FC only)

&N10

19.2Kbps (V.32terbo, V.34 and V.FC only)

&N11

21.6Kbps (V.32terbo, V.34 and V.FC only)

&N12

24Kbps (V.34 and V.FC only)

&N13

26.4Kbps (V.34 and V.FC only)

&N14

28.8Kbps (V.34 and V.FC only)

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í &S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected

&S2

DSR toggled on loss of CD signal with CTS following CD signal

&S3

DSR toggled on loss of CD signal without CTS following CD signal

&S4

DSR and CD signals are sent to DTE at the same time

DATA SET READY (DSR) - PULSED SIGNAL

Type:

Register

Format:

AT [cmds] S24=n [cmds]

Default:

150

Range:

0-255

Unit:

.02 second

Description:

Sets the length of time between DSR on/off when the modem is set to &S2 or &S3.

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

&D0

Modem does not respond to DTR, DTR signal forced high

&D1

Modem goes to command mode after DTR toggles

&D2

Modem uses DTR as normal

DETECT TONE

Type:

Immediate

Format:

AT [cmds] %T [cmds]

Description:

Enables the modem to detect tone frequencies of dialing modems. Used primarily for network applications. To enable, ATH1<cr> then AT%T. To disabled, press any key.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Example:

ATDT 443-3388,,,1111;

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.

Modifier

Function

í P

Pulse dialing enabled

T

Tone dialing enabled

,

Dialing paused for 2 seconds to a maximum amount of time specified in S8 register

;

Modem returned to command state after dialing. Can only be placed at the end of the dial command.

"

Dials letters that follow, ATDT"GOMICRO

!

Flash function initiated

W

Dialing resumed following dial tone detection

@

Wait for quiet answer, then proceeds to execute the rest of the dial string.

/

125 msec delay before proceeding with dial string

R

Answer mode enabled; originate mode disabled following handshake initiation.

DIAL - LAST NUMBER

Type:

Immediate

Format:

AT [cmds] DL [cmds]

Description:

Re-dial last number dialed

Note: Use ATDL instead of A/ if you need to use commands other than the dial command.

DIAL - STORED NUMBER

Type:

Immediate

Format:

AT [cmds] DSn [cmds]

Description:

Dial stored number from memory location n. (n=0-9)

DISCONNECT BUFFER DELAY

Type:

Register

Format

AT [cmds] S38=n [cmds]

Default:

0

Range:

0-255

Unit:

1 second

Description:

Sets maximum duration allowed during buffered data calls for modem to perform clearing functions after losing carrier-signal or receiving a clear call signal from the remote modem and before initiating hang-up process. A value of 0 allows the modem to hang-up immediately.

DTR CHANGE THRESHOLD

Type:

Register

Format

AT [cmds] S25=n [cmds]

Default:

5

Range:

0-255

Unit:

.01 second

Description:

Sets maximum time a change in the DTR signal will be ignored

ECHO

Type:

Configuration

Format:

AT [cmds] En [cmds]

Description:

Controls echo function; display keyboard commands when enabled.

Command

Function

E0

Echo function disabled

E1

Echo function enabled

ECHO - ON-LINE

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Selects whether commands sent while in data mode are echoed

Command

Function

F0

Local echo enabled

í F1

Local echo disabled

EDIT - SECURITY SYSTEMS

Type:

Immediate

Format:

AT [cmds] %E=n [cmds]

Description:

Clears chosen field or password

Command

Function

%E=1

Clear local access password

%E=2

Clear auto-pass password

%E=3

Clear passwords in accounts 0-9

%E=4

Clear phone numbers in accounts 0-9

%E=5

Disable account, dial-back, and new number fields in accounts 0-9

ERROR CORRECTION MODE (ARQ)

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects active error correction protocols

Command

Function

&M0

Normal mode only

&M1

On-line synchronous mode without V.25bis

í &M4

Auto-detect mode

&M5

ARQ mode only

&M6

V.25bis on-line synchronous mode with a protocol link similar to BISYNC

&M7

V.25bis on-line synchronous mode with HDLC protocol link

ESCAPE SEQUENCE

Type:

Immediate

Format:

+++AT [cmds] <CR>

Description:

Initiates the escape sequence and returns the modem to the on-line command state if it receives three escape characters set in S2 within the time allotted by S12.

Note:

Do not precede this command with AT.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Selects extended result codes

Command

Function

&A0

Extended result codes disabled

&A1

ARQ result codes enabled

&A2

V.32, HST, V.34 or V.FC result code enabled

í &A3

Error control and compression result codes enabled

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &Fn [cmds]

Description:

Sets values in active profile to values found in the default profile

Command

Function

&F0

No flow control template

í &F1

Hardware flow control template

&F2

Software flow control template

&F3

HST Cellular template

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S23=n [cmds]

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XOFF.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Default:

17

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XON.

FLOW CONTROL PASSTHROUGH

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Description:

Allows modem to act on, then transmit XON/XOFF characters.

Command

Function

í &I0

Software flow control disabled

&I1

XON/XOFF passthrough enabled

&I2

XON/XOFF passthrough disabled

&I3

ENQ/ACK enabled in host mode

&I4

ENQ/ACK enabled in terminal mode

&I5

XON/XOFF passthrough disabled in error correction mode

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Description:

Sets type of flow control used by modem

Command

Function

&H0

Flow control disabled

í &H1

CTS/RTS flow control enabled

&H2

XON/XOFF flow control enabled

&H3

CTS/RTS and XON/XOFF flow control enabled

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Description:

Controls receive data hardware flow control and RTS signals

Command

Function

&R0

Delay CTS response after RTS signal (RTS/CTS delay)

&R1

Modem ignores RTS

í &R2

Received data to DTE when RTS is on

GUARD TONE

Type:

Configuration

Format:

AT [cmds] &Gn [cmds]

Description:

Commands the modem to transmit a guard tone in V.22/V.22bis mode

Note: Used primarily for international data transmission

Command

Function

í &G0

Guard tone disabled

&G1

550Hz guard tone enabled

&G2

1800Hz guard tone enabled

HOOK CONTROL

Type:

Immediate

Format:

AT [cmds] Hn [cmds]

Description:

Selects whether the modem is on-hook or off-hook

Command

Function

H0

Modem commanded to go on-hook (hang-up)

H1

Modem commanded to go off-hook (pick-up)

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] S19=n [cmds]

Default:

0

Range:

0-255

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects. S19=0 will disable.

LEASED-LINE RECONNECT

Type:

Register

Format:

AT [cmds] S44=n [cmds]

Default:

15

Range:

0-255

Unit:

1 second

Description:

Sets the time when the modem will reconnect in leased-line mode when it detects a loss of carrier.

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Description:

Selects line type

Command

Line Type

í &L0

Switched line (PSTN/Dial-up)

&L1

Leased-line

&L2

Cellular operation

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Sets operation of serial port speed

Command

Function

&B0

Serial speed follows connect speed

í &B1

Serial speed locked

&B2

Serial speed locked in ARQ mode only

MAPPING

Type:

Register

Format:

AT [cmds] S55=n [cmds]

Default:

0

Range:

0-15

Description:

Controls all Map options

Bit

Value

Function

0

í 0

1

8S-2D map enabled

8S-2D map disabled

1

í 0

1

16S-4D map enabled

16S-4D map disabled

2

í 0

1

32S-2D map enabled

32S-2D map disabled

3

í 0

1

64S-4D map enabled

64S-4D map disabled

ON-LINE

Type:

Immediate

Format:

AT [cmds] On [cmds]

Description:

Controls on-line command (data transmission) mode 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

PACKET SIZE - REDUCE

Type:

Register

Format:

AT [cmds] S33=n [cmds]

Description:

Reduces the size of the packets being sent

Command

Function

í S33=0

Reduce packet size disabled

S33=1

Reduce packet size enabled

PASSWORD - ASSIGNMENT

Type:

Configuration

Format:

AT [cmds] %L=n [cmds]

Description:

Assign an account password as the local access password.

PASSWORD - AUTO-PASS

Type:

Configuration

Format:

AT [cmds] %V=PWn [cmds]

Description:

Make the password in account n as your auto-pass password

PASSWORD - SECURITY

Type:

Configuration

Format:

AT [cmds] %Pn=x [cmds]

Description:

Sets, views or disables password security

Command

Function

%Pn=

Disable password security (%Pn=0 or 1)

%Pn=x

Viewing privileges only (n=0), Viewing and configuration privileges (n=1) for specified password string (x).

%Pn?

Display password n

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

í &P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

REMOTE ACCESS - ESCAPE CHARACTER

Type:

Register

Format:

AT [cmds] S42=n [cmds]

Default:

126

Range:

0-255

Unit:

ASCII

Description:

Controls the remote access escape character, default character (~) Tilde.

REMOTE ACCESS - LOG-IN ATTEMPTS

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Default:

0

Range:

0-255

Unit:

1 attempt

Description:

Sets the number of remote access log-in attempts. S41=0 disables and doesn’t allow remote access.

REMOTE ACCESS - SEQUENCE

Type:

Register

Format:

AT [cmds] S43=n [cmds]

Default:

200

Range:

0-255

Unit:

.02 second

Description:

Sets the guard time for the remote access sequence, (~~~~).

REMOTE CONFIGURATION CONTROL

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Sets how the modem will react to remote configuration changes

Command

Function

í C0

Remote configuration changes are deferred, this ensures that connections are made.

C1

Remote configuration changes are restored, restore original configuration after remote access.

C2

Remote configuration changes are effected immediately, changes are made now.

REMOTE CONFIGURATION - DATA FORMAT

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Sets parity

Command

Function

%F0

No Parity, 8 data bits

%F1

Mark Parity, 7 data bits

%F2

Odd Parity, 7 data bits

%F3

Even Parity, 7 data bits

REMOTE CONFIGURATION - SERIAL PORT SPEED

Type:

Configuration

Format:

AT [cmds] %Bn [cmds]

Description:

Remotely configures the serial port speed

Command

Function

%B0

Set serial port speed to 110Kbps

%B1

Set serial port speed to 300Kbps

%B2

Set serial port speed to 600bps

%B3

Set serial port speed to 1200bps

%B4

Set serial port speed to 2400bps

%B5

Set serial port speed to 4800bps

%B6

Set serial port speed to 9600bps

%B7

Set serial port speed to 19.2Kbps

%B8

Set serial port speed to 38.4Kbps

%B9

Set serial port speed to 57.6Kbps

%B10

Set serial port speed to 115.2Kbps

REMOTE CONFIGURATION - V.25bis CLOCK SPEED

Type:

Configuration

Format:

AT [cmds] %Nn [cmds]

Description:

Sets the terminal to modem V.25bis clock speed

Command

Function

%N0

Not used

%N1

Not used

%N2

Set clock speed to 1200bps

%N3

Set clock speed to 2400bps

%N4

Set clock speed to 4800bps

%N5

Set clock speed to 7200bps

í %N6

Set clock speed to 9600bps

%N7

Set clock speed to 12Kbps

%N8

Set clock speed to 14.4Kbps

%N9

Set clock speed to 16.8Kbps

%N10

Set clock speed to 19.2Kbps

REPEAT COMMAND STRING

Type:

Configuration

Format:

AT [cmds] > [cmds]

Description:

Causes modem to repeat command string until a keyboard key is pressed

REPEAT DIAL STRING

Type:

Immediate

Format:

A>

Description:

Repeat mode enabled and the dial string last executed will be carried out until a connection is established or 10 attempts made.

Note:

Do not precede this command with AT, or follow it with <CR>.

REPEAT PREVIOUS COMMAND

Type:

Immediate

Format:

A/

Description:

Repeats previous command, mainly used for redial.

Note:

Do not precede this command with AT, or follow it with <CR>.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports 4-digit product code

I1

Reports ROM checksum

I2

Reports RAM checksum

I3

Reports call duration (ATK0) or real time (ATK1)

I4

Reports current command settings

I5

Reports NVRAM settings

I6

Reports link diagnostics

I7

Reports product configuration

I10

Reports dial security account status information

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code sending enabled while in originate mode

RESULT CODE FORMAT

Type:

Configuration

Format:

AT [cmds] Vn [cmds]

Description:

Selects word or numeric format for information-text and result codes

Command

Function

V0

Numeric format enabled

V1

Verbose (word) format enabled

RTS TO CTS DELAY

Type:

Register

Format

AT [cmds] S26=n [cmds]

Default:

1

Range:

0-255

Unit:

.01 second

Description:

Sets the duration of delay for CTS to respond to RTS status change in synchronous mode.

SECURITY ACCOUNTS

Type:

Configuration

Format:

AT %An=(field parameters) <cr>

Example:

AT%A0=DOG,Y,Y,N,1-234-567-8901<cr>

Description:

Make and configure security accounts, (n=0-9)

Parameter options

Password enabled

Account enabled

Dialback enabled

Allow new number

Dialback number

8-characters

Case sensitive

Yes

No

Yes

No

Yes

No

37-characters

(0-9)

DOG

Y

Y

N

1-234-567-8901

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, 13-107 enabled

X2

Busy tone detection disabled, dial tone detection enabled; result codes 0-6, 10, 13-107 enabled; also adaptive dialing, wait for second dial tone, and fast dialing enabled.

X3

Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-8, 10, 13-107 enabled; also adaptive dialing, and wait for answer enabled.

X4

Busy and dial tone detection enabled; result codes 0-10, 13-107 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.

X5

Busy tone detection enabled, dial tone detection disabled; result codes 0-5, 7-107 enabled; also adaptive dialing, wait for second dial tone, and wait for answer enabled.

X6

Busy and dial tone detection enabled; result codes 0-107 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.

í X7

Busy and dial tone detection enabled; result codes 0-11, 13-107 enabled; also adaptive dialing, wait for second dial tone, wait for answer, and fast dialing enabled.

Note: Valid numeric result codes; 0-8, 10-13, 18, 20, 21, 25, 47, 85, 91, 99, 103, and 107.

SOFT RESET

Type:

Immediate

Format:

AT [cmds] Z [cmds]

Description:

Restores modem profiles previously saved in non-volatile RAM

Note:

If SW1/J is OFF, then the modem will reset to AT&F0 profile. (External models only)

SPEAKER MODE

Type:

Configuration

Format:

AT [cmds] Mn [cmds]

Description:

Selects various speaker options

Command

Function

M0

Speaker disabled

í M1

Speaker enabled until carrier signal detected

M2

Speaker enabled

M3

Speaker enabled following dialing, then disabled after carrier signal detected.

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Note: Command works for internal models only, externals will return ‘OK’.

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

STATUS-REGISTER

Type:

Configuration

Format:

Read: AT [cmds] Sn? [cmds]

Write: AT [cmds] Sn=x [cmds]

Description:

Writes to or reads from a specified register. Valid values 0-255

Command

Function

Sn.b=x

Write to register bit b using values 0 (off) and 1 (on) for x

STORE ACTIVE PROFILE

Type:

Configuration

Format:

AT [cmds] &Wn [cmds]

Description:

Writes the values for the active profile into the non-volatile RAM templates

Command

Function

&W0

Write the active profile to stored template 0

&W1

Write the active profile to stored template 1

STORE COMMAND STRING

Type:

Configuration

Format:

AT [cmds] &ZCn=(command string)

Description:

Writes selected command string into the non-volatile memory at location n (n=0-9)

Command

Function

&ZC=n

Writes command string into the non-volatile memory at location n

&ZC?

Displays stored command string

STORE DIAL STRING

Type:

Configuration

Format:

AT [cmds] &Zn=(phone # & modifiers)

Description:

Writes selected dial string into the non-volatile memory at location n (n=0-9)

Note: The characters described in the D command are valid for use in the &Z command.

Command

Function

&Zn?

Displays phone number from non-volatile memory at location n

TEST MODES

Type:

Configuration

Format:

AT [cmds] &Tn [cmds]

Description:

Controls loopback tests: analog, digital, remote digital, and self tests.

Command

Function

&T0

Testing disabled

&T1

Local analog loopback enabled

&T3

Local digital loopback enabled

&T4

Remote digital loopback enabled

&T5

Remote digital loopback prohibited

&T6

Remote digital loopback initiated

&T7

Remote digital loopback w/ self-test and error detector in progress

&T8

Local analog loopback w/ self-test and error detector in progress

TEST MODES

Type:

Register

Format:

AT [cmds] S16=n [cmds]

Default:

0

Range:

0-15

Description:

Controls tests, analog loopback, dial, test pattern and remote digital loopback.

Bit

Value

Function

0

í 0

1

Local analog loopback disabled

Local analog loopback enabled

1

í 0

1

Dial test disabled

Dial test enabled

2

í 0

1

Test pattern disabled

Test pattern enabled

3

í 0

1

Remote digital loopback disabled

Remote digital loopback enabled

TEST TIMER

Type:

Register

Format

AT [cmds] S18=n [cmds]

Default:

0

Range:

0-255

Unit:

1 second

Description:

Sets the maximum duration for modem tests

Note: S18=0 disables the timer and allows an indefinite duration.

TIME DISPLAY

Type:

Immediate

Format:

AT [cmds] Kn [cmds]

Description:

Displays the current call time or clock time

Command

Function

K0

Display length of last call, if off-line; duration of call while on-line.

K1

Display actual time (HH:MM:SS)

TRANSMITTER

Type:

Configuration

Format:

AT [cmds] Cn [cmds]

Description:

Controls the transmitter.

Command

Function

C0

Disable transmitter, receive-only operation.

í C1

Enable transmitter

VOICE/DATA SWITCH

Type:

Register

Format:

AT [cmds] S32=n [cmds]

Description:

Controls voice/data switch functions

Command

Function

S32=0

All functions disabled

S32=1

Voice/data, originate

S32=2

Voice/data, answer

S32=3

Redial last number

S32=4

Dial number from stored position 0

S32=5

Auto-answer on/off toggle

S32=6

Reset modem

S32=7

Remote digital loopback initiated

S32=8

Busy out phone line toggle

í S32=9

Execute command string from &ZC. If there is no command string, the modem acts on S32=1.

V.21 - HANDSHAKE TIME

Type:

Register

Format:

AT [cmds] S29=n [cmds]

Default:

20

Range:

0-255

Unit:

.1 second

Description:

Sets length of V.21 handshake

V.32 - HANDSHAKE TIME

Type:

Register

Format:

AT [cmds] S28=n [cmds]

Default:

8

Range:

0-255

Unit:

.1 second

Description:

Sets length of V.32 handshake

V.25bis Command Set

CONNECT INCOMING CALLS

Type:

Immediate

Format:

CIC

Description:

Instructs the modem to answer an incoming call; if no call is currently incoming, a result of INV will be returned.

CALL REQUESTED NUMBER

Type:

Immediate

Format:

CRN<#>

Description:

Dials the number given; it will ignore spaces and hyphens in the string.

CALL REQUEST WITH ADDRESS

Type:

Immediate

Format:

CRSn

Description:

Dials the number stored in NVRAM location n

DISREGARD INCOMING CALL

Type:

Immediate

Format:

DIC

Description:

Instructs the modem to ignore the incoming call, if the modem is set to automatically answer; if no call is currently incoming, a result of INV will be returned.

PROGRAM NUMBER

Type:

Configuration

Format:

PRNn

Description:

Stores a phone number in memory address n.

REQUEST LIST OF FORBIDDEN NUMBERS

Type:

Immediate

Format:

RFN

Description:

Requests the list of forbidden numbers from the modem; the modem is unable to dial numbers on this list until its power has been cycled; if this feature is not enabled, the modem will return INV.

REQUEST LISTED NUMBERS

Type:

Immediate

Format:

RLN

Description:

Requests the modem to return the list of stored numbers in NVRAM; if no numbers are stored, the modem will return LSN.

V.25bis Result codes

CALL FAILURE INDICATOR

Type:

Response

Format:

CFIxx

Description:

Indicates that the attempt to connect failed

Response

Name

Description

CFAB

Abort

The call was aborted because either no dialtone was detected or a character was received from the host computer.

CFCB

DCE Busy

An incoming call was detected after the dialing command was issued

CFET

Engaged Tone

A busy signal was detected

CFFC

Forbidden Call

The number given is on the forbidden list

CFNS

Not Stored

The memory address given did not contain a valid telephone number

CFNT

No Tone

The remote party did not issue a response tone

CFRT

Ring Tone

A responding tone was detected, but the call timed out before it was completed.

CONNECTION

Type:

Response

Format:

CNX

Description:

A connection has been successfully established

LIST OF NUMBERS

Type:

Response

Format:

LS

Description:

This code is given in response to a number just dialed

LIST OF STORED NUMBERS

Type:

Response

Format:

LSN

Description:

This code is given in response to a RLN command

LIST OF STORED FORBIDDEN NUMBERS

Type:

Response

Format:

LSF

Description:

This code is given in response to a RFN command; it indicates that the number is on the forbidden list and cannot be dialed.

INCOMING CALL

Type:

Response

Format:

INC

Description:

An incoming call has been detected

INVALID

Type:

Response

Format:

INV

Description:

The modem was issued an improper command, optional parameters maybe displayed.

Response

Description

INVMS

Message syntax error

INVCU

Unknown command

INVPS

Parameter syntax error

INVPV

Parameter value error

VALID

Type:

Response

Format:

VAL

Description:

The command issued is valid and is being executed