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COURIER V.32TERBO FAX WITH ASL

3COM CORPORATION

COURIER V.32TERBO FAX WITH ASL

Card Type

Fax, Modem (asynchronous)

Chip Set

U.S. Robotics

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

Unidentified

Fax Class

Unidentified

Data Modulation Protocol

Bell 103/212A

ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.32terbo

Fax Modulation Protocol

Unidentified

Error Correction/Compression

MNP5, V.42, V.42bis

54155

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í DTR normal

SW1/1

Off

DTR forced high

SW1/1

On

í Verbal result codes

SW1/2

Off

Numeric result codes

SW1/2

On

í Enable result codes displayed

SW1/3

On

Disable result codes displayed

SW1/3

Off

í Local echo enabled

SW1/4

Off

Local echo disabled

SW1/4

On

í Auto answer disabled

SW1/5

On

Auto answer enabled

SW1/5

Off

í CD signal normal

SW1/6

Off

CD signal forced high

SW1/6

On

í Result codes displayed during both answer and originate mode

SW1/7

Off

Result codes displayed in originate mode only

SW1/7

On

í Smart mode enabled

SW1/8

On

Dumb mode enabled

SW1/8

Off

í Normal operation enabled

SW1/9

On

Escape sequence enabled

SW1/9

Off

í Restore NVRAM defaults

SW1/10

Off

Restore factory defaults

SW1/10

On

SEND/RECEIVE PIN ASSIGNMENT

Setting

Quad Switch

í Normal

Off

Not used

On

Proprietary AT Command Set

ABORT

Type:

Immediate

Format:

Any key

Description:

Aborts answering/originating a call; modem hangs up.

ANSWER

Type:

Immediate

Format:

AT [cmds] A

Description:

Enables manual answer mode, the modem goes off-hook; pressing any key will abort.

ANSWER SEQUENCE

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the answer sequence the modem will use

Command

Function

í B0

V.32 mode/ITU-T answer sequence enabled

B1

HST mode/Bell answer tone enabled

ATTENTION

Type:

Immediate

Format:

AT [cmds]

Description:

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

BIT MAPPED REGISTERS

Register

Default

S51

0

BIT-MAPPED REGISTER S13

Format

AT [cmds] S13=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Controls DTR reset, DTR dialing, reset dialing, HST modulation, and MNP3.

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

Pause 250msec. Before displaying result codes

Immediate result code display

3

í 0

1

DTR dialing disabled

DTR dialing enabled

4

í 0

1

Reset dialing disabled

Reset dialing enabled

5

í 0

1

HST modulation enabled

HST modulation disabled

6

í 0

1

MNP 3 enabled

MNP 3 disabled

7

í 0

1

Hardware reset disabled

Hardware reset enabled

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

300bps back channel enabled

300bps 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 only disabled

Custom applications only enabled

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 Unusual software incompatibility.

Bit

Value

Function

0

í 0

1

V.21 disabled

V.21 enabled

1

í 0

1

V.32 trellis coding disabled

V.32 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

4

í 0

1

MNP handshake enabled

MNP handshake disabled

5

í 0

1

V.42 detection phase enabled

V.42 detection phase disabled

6

í 0

Not used

7

í 0

1

Unusual software incompatibility disabled

Unusual software incompatibility enabled

BIT-MAPPED REGISTER S32

Format

AT [cmds] S34=n [cmds]

Default:

0

Range:

0-63

Unit:

Bit-mapped

Description:

Controls V.23/V.32/V.32bis modulations. Change LED and enable MI/MIC.

Bit

Value

Function

0

í 0

1

V.32bis enabled

V.32bis disabled

1

í 0

1

Enhanced V.32 enabled

Enhanced V.32 disabled

2

í 0

1

Quick V.32 retrain enabled

Quick V.32 retrain disabled

3

í 0

1

V.23 disabled

V.23 enabled

4

í 0

1

Do not change MR LED to represent DSR

Change MR LED to represent DSR

5

í 0

1

Disable MI/MIC

Enable MI/MIC

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 or send break

CARRIER DETECT (CD)

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Controls the CD signal

Command

Function

&C0

Modem does not respond to CD signal

í &C1

CD signal normal

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 enabled

CONNECTION SPEED

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Sets required connection speed, modem will hang up if it cannot connect.

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

&N10

21.6Kbps

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í &S0

DSR forced high

&S1

DSR controlled by modem

&S2

DSR toggled, CTS follows CD

&S3

DSR toggled

&S4

Modem sends DTE DSR signal following CD signal

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

&D1

Modem goes to command mode after DTR toggles

í &D2

Modem uses DTR as normal

CTS/RTS - DELAY

Type:

Configuration

Format:

AT [cmds] S26=n [cmds]

Default:

1

Range:

0-255

Unit:

.1 second

Description:

Sets the length of time between RTS and CTS signal sending

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.

Command

Function

í P

Pulse dialing enabled

T

Tone dialing enabled

,

Dialing paused for 2 seconds

;

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

"

Dials letters as if they were numbers; ATDT"GOMICRO"

!

Flash function initiated

@

Dial, wait for quiet answer, then continue to execute the rest of the dial string

W

Dial, wait for second dial tone, then continue to execute the rest of the 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

DIAL - STORED NUMBER

Type:

Immediate

Format:

AT [cmds] DSn [cmds]

Description:

Dial stored number from memory location n

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 will allow the modem to hanging-up after DTR drops.

ECHO

Type:

Configuration

Format:

AT [cmds] En [cmds]

Description:

Controls echo function; display keyboard commands when enabled.

Command

Function

E0

Echo function disabled

í E1

Echo function enabled

ECHO - ON-LINE

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Selects whether data sent while in data mode are echoed

Command

Function

F0

Local echo enabled

í F1

Local echo disabled

ERROR CORRECTION MODE (ARQ)

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects active error correction protocols

Command

Function

&M0

Normal mode only

&M1

Asynchronous command mode and synchronous data mode

í &M4

Normal/ARQ mode

&M5

ARQ mode only

&M6

Character-oriented synchronous

&M7

HDLC synchronous

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 COMMAND SET

Type:

Immediate

Format:

AT <prefix>

Description:

Shows command help screens for all commands beginning with the given prefix.

Command

Function

&

Shows AT& extended command set

%

Shows AT% extended command set

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

ARQ result codes enabled and V.32 result code added

í &A3

Error control and compression result codes enabled

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &Fn [cmds]

Description:

Loads factory profile into non-volatile memory

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 PASS-THROUGH

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 after RTS. See S26 on length of time.

&R1

Modem ignores RTS

í &R2

Received data to DTE when RTS is on

GUARD TIME

Type:

Register

Format:

AT [cmds] S43=n [cmds]

Default:

100

Range:

0-255

Unit:

.02 second

Description:

Sets guard time for remote access sequence

GUARD TONE

Type:

Configuration

Format:

AT [cmds] &Gn [cmds]

Description:

Commands the modem to transmit a guard tone

Note: Used primarily for international data transmission

Command

Function

í &G0

Guard tone disabled

&G1

550Hz guard tone enabled

&G2

1800Hz guard tone enabled

HANDSHAKE TIMER

Type:

Register

Format:

AT [cmds] S28=n [cmds]

Default:

8

Range:

0-255

Unit:

.1 second

Description:

Sets the length of handshake time, so modems with V.32bis, V.FC and V.34 are given a chance to connect at 9600bps or higher.

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:

0-90

Unit:

1 minute

Description:

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

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Description:

Select the line type

Command

Function

í &L0

Dial-up enabled

&L1

Leased-line enabled

&L2

HST cellular enabled

LIST AMPERSAND COMMANDS

Type:

Immediate

Format:

AT [cmds] &$ [cmds]

Description:

Displays ampersand (&) commands

LIST BASIC COMMANDS

Type:

Immediate

Format:

AT [cmds] $ [cmds]

Description:

Displays basic commands

LIST DIAL COMMANDS

Type:

Immediate

Format:

AT [cmds] D$ [cmds]

Description:

Displays dial commands

LIST PERCENT COMMANDS

Type:

Immediate

Format:

AT [cmds] %$ [cmds]

Description:

Displays percent (%) commands

LIST S-REGISTERS

Type:

Immediate

Format:

AT [cmds] S$ [cmds]

Description:

Displays the S-registers

LOCAL CONFIGURATION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Set local configuration remotely

Command

Function

í %C0

Defer configuration until call terminated

%C1

Restore original configuration

%C2

Execute configuration immediately

LOCAL SERIAL PORT SPEED

Type:

Register

Format:

AT [cmds] %Bn [cmds]

Description:

Selects DTE speed remotely

Command

Function

%B0

Sets to 110bps speed

%B1

Sets to 300bps speed

%B2

Sets to 600bps speed

%B3

Sets to 1200bps speed

%B4

Sets to 2400bps speed

%B5

Sets to 4800bps speed

%B6

Sets to 9600bps speed

%B7

Sets to 19.2Kbps speed

%B8

Sets to 38.4Kbps speed

%B9

Sets to 57.6Kbps speed

%B10

Sets to 115.2Kbps speed

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, Variable in non-ARQ mode.

LOG-ON ATTEMPTS

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Default:

0

Range:

0-255

Unit:

Attempts

Description:

Sets the number of allowable log-on attemtps for remote access

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

PARITY

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Sets parity and data bits remotely

Command

Function

%F0

No Parity, 8 data bits

%F1

Mark Parity, 7 data bits

%F2

Parity odd, 7 data bits

%F3

Parity even, 7 data bits

PASSWORD

Type:

Configuration

Format:

Read: AT [cmds] %Pn? [cmds]

Write: AT [cmds] %Pn=x [cmds]

Description:

Reads or writes a password to memory location n. n=0-1

PAUSE

Type:

Immediate

Format:

AT [cmds] / [cmds]

Description:

Pause for 125 msec

PULSE DIALING

Type:

Configuration

Format:

AT [cmds] P [cmds]

Description:

Enables pulse dialing

Note: This command can be duplicated with the P modifier in the D (Dial) command.

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)

RECONNECT - LEASED-LINE

Type:

Register

Format:

AT [cmds] S44=n [cmds]

Default:

15

Range:

0-255

Unit:

1 second

Description:

Sets the length of time the modem senses loss of carrier before re-establishing a leased-line conntion

REMOTE ACCESS ESCAPE CHARACTER

Type:

Register

Format

AT [cmds] S42=n [cmds]

Default:

126

Range:

0-255

Unit:

ASCII

Description:

Selects a character used for the remote access escape sequence

REPEAT CONTINUALLY

Type:

Configuration

Format:

AT [cmds] > [cmds]

Description:

Causes modem to repeat command string continually or up to 10 dial attempts; until a keyboard key is pressed

REPEAT PREVIOUS COMMAND CONTINUALLY

Type:

Immediate

Format:

AT [cmds] A> [cmds]

Description:

Repeat previous command continually

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

REPEAT PREVIOUS COMMAND

Type:

Immediate

Format:

A/

Description:

Repeat previous command only once

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 product code

I1

Reports ROM checksum

I2

Reports RAM checksum

I3

Reports call duration and real time

I4

Reports current command settings

I5

Reports NVRAM settings

I6

Reports link diagnostics

I7

Reports product configuration

I10

Reports dial security account status

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

í V1

Verbose (word) format enabled

SECURITY

Type:

Register

Format:

AT [cmds] S53=n [cmds]

Default:

0

Range:

0-7

Description:

Controls security features

Bit

Value

Function

0

í 0

1

Dial security disabled

Dial security enabled

1

í 0

1

Password prompting disabled

Password prompting enabled

2

í 0

1

Local access passsword protection disabled

Local access passsword protection enabled

SELECT CALL PROGRESS RESULT CODES

Type:

Configuration

Format:

AT [cmds] Xn [cmds]

Default:

X7

Description:

Enables selection of tone detection and associated result code format options

SOFT RESET

Type:

Immediate

Format:

AT [cmds] Z [cmds]

Description:

Restores modem profile previously saved in non-volatile memory

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.

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

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] &W [cmds]

Description:

Writes active profile into the non-volatile memory

STORE TELEPHONE NUMBER

Type:

Configuration

Format:

AT [cmds] &Zn=x [cmds]

Description:

Writes selected telephone numbers into the non-volatile memory at location n

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

Command

Function

&Zn=L

Writes last executed dial string into the non-volatile memory at location n

&Zn?

Displays phone number from non-volatile memory at location n

&ZC=x

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

&ZC?

Displays stored command string

SYNCHRONOUS CLOCK SOURCE

Type:

Configuration

Format:

AT [cmds] &Xn [cmds]

Description:

Select clock source

SYNCHRONOUS CLOCK SPEED

Type:

Configuration

Format:

AT [cmds] %Nn [cmds]

Description:

Sets synchronous clock speed

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

&T8

Local analog loopback w/ self-test

TEST MODES

Type:

Configuration

Format:

AT [cmds] S16=n [cmds]

Default:

0

Range:

0-15

Description:

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

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 not initiated

Remote digital loopback initiated

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.

TONE DIALING

Type:

Configuration

Format:

AT [cmds] T [cmds]

Description:

Enables tone dialing mode

Note: This command can be duplicated with the T modifier in the D (Dial) command.

TONE RECOGNITION

Type:

Immediate

Format:

AT [cmds] %T [cmds]

Description:

Enables tone recognition

VOICE/DATA OPTIONS

Type:

Register

Format:

AT [cmds] S32=n [cmds]

Description:

Select various options the modem will perform

Command

Function

S32=0

Disabled

S32=1

Modem commanded to go off-hook (pick-up) in originate mode

S32=2

Modem commanded to go off-hook (pick-up) in answer mode

S32=3

Re-dial last number dialed

S32=4

Dial stored number at memory location 0

S32=5

Auto-answer toggle on/off

S32=6

Reset modem

S32=7

Remote digital loopback initiated

S32=8

Busy out phone line toggle

í S32=9

Execute stored command string

V.21 - HANDSHAKE

Type:

Register

Format:

AT [cmds] S29=n [cmds]

Default:

20

Range:

0-255

Unit:

.1 second

Description:

Sets the length of handshake time for V.21.

V.32 - HANDSHAKE

Type:

Register

Format:

AT [cmds] S28=n [cmds]

Default:

8

Range:

0-255

Unit:

.1 second

Description:

Sets the length of handshake time for V.32.