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TRAVELPORTE FAST

MICROCOM, INC.

TRAVELPORTE FAST

Card Type

Modem(synchronous/asynchronous)

Chip Set

Unidentified

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Unidentified

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, v.FAST

Fax Modulation Protocol

Unidentified

Error Correction/Compression

MNP5, MNP10, V.42, V.42bis

CONNECTIONS

Function

Label

Function

Label

Line in

CN1

25-Pin parallel port

CN4

Line out

CN2

DC power

CN5

9-Pin mini-DIN connector

CN3

Power switch

SW1

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

DTR

Red

On

DTR signal is high

DTR

Red

Off

DTR signal is low

OH

Red

On

Modem is off hook

OH

Red

Off

Modem is on hook

DCD

Green

On

Carrier signal detected

DCD

Green

Off

Carrier signal not detected

EC

Red

On

Modem is in error correction mode

EC

Red

Off

Modem is not in error correction mode

DIAGNOSTIC LED(S) POWER-UP DIAGNOSTIC TESTING

CD

EC

Condition

Off

On

Test of RAM failed

On

Off

Component failure

On

On

Test of CPU failed

3 Blinks

Off

All tests passed

DIAGNOSTIC LED(S) SPEED (bps)

LED

Status

1 Blink

2 Blinks

3 Blinks

4 Blinks

5 Blinks

6 Blinks

7 Blinks

V.22bis

Blinking

1200

2400

         

V.32bis

Blinking

4800

7200

9600

12000

144000

   

V.fast

Blinking

14400

16800

19200

21600

24000

26400

28800

Proprietary AT Command Set

Auto-answer auto-logon sequence select

Type:

Configuration

Format:

AT [cmds] $An [cmds]

Description:

Sets whether auto-answer auto-logon sequence are used

Command

Function

í $A0

Auto-answer auto-logon disabled

$Ax

Auto-answer auto-logon enabled for the sequence x, where x has a range of 1-9 and the sequence must first be set using the $L command

automatic shut-down auto saving

Type:

Configuration

Format:

AT [cmds] )Zn [cmds]

Description:

Sets whether the modem saves configurations before it automatically shuts down

Command

Function

)Z0

Auto saving disabled

)Z1

Auto saving enabled (*W function enacted 5 seconds prior to shut-down)

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22=n [cmds]

Default:

Unidentified

Range:

0-255

Unit:

Bit-mapped

Description:

Controls speaker volume and controls, results codes, and pulse dial make/break ratio.

Bit

Value

Function

1, 0

 

Not used

3, 2

00

01

10

11

Speaker off

Speaker off on carrier

Speaker always on

Speaker on during handshake

6 - 4

000

100

101

110

111

Busy and dial tone detection disabled; result codes 0 - 4 enabled

Busy and dial tone detection disabled; result codes 0 - 5 & 10 enabled

Busy tone detection disabled, dial tone detection enabled; result codes 0 - 6 & 10 enabled

Busy tone detection enabled, dial tone detection disabled; result codes 0 - 5, 7 & 10 enabled

Busy and dial tone detection enabled; result codes 0 - 7 & 10 enabled

7

0

1

39/61ms at 10pps (North America)

33/67ms at 10pps (Europe)

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Default:

Unidentified

Range:

0-189

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.

Bit

Value

Function

0

0

1

Remote digital loopback denied

Remote digital loopback allowed

3 - 1

000

001

010

011

100

101

110

111

Sets serial port speed to 0-300bps

Sets serial port speed to 600bps

Sets serial port speed to 1200bps

Sets serial port speed to 2400bps

Sets serial port speed to 4800bps

Sets serial port speed to 9600bps

Sets serial port speed to 19200bps

Sets serial port speed to 38400, 57600 and 115200 bps

5, 4

00

01

10

11

Parity even

Space parity

Parity odd

Mark or no parity

7, 6

00

01

10

11

Guard tone disabled

Guard tone disabled

Guard tone 1800Hz enabled

Not used

BIT-MAPPED REGISTER :T15

Format

AT [cmds] :T15=n [cmds]

Default:

128

Range:

0-193

Unit:

Bit-mapped

Description:

Sets the V.24 control

Bit

Value

Function

0

0

1

CTS not effected by direct mode retrains

CTS lowered by direct mode retrains

5- 1

 

Not used

6

0

1

DCD enabled

DCD enabled after carrier signal detected

7

0

1

V.32 answer tone phase reversals disabled

V.32 answer tone phase reversals enabled

BIT-MAPPED REGISTER :T19

Format

AT [cmds] :T19=n [cmds]

Default:

1

Range:

0-1

Unit:

Bit-mapped

Description:

Sets the link control for MNP

Bit

Value

Function

0

0

1

Modem will not disconnect a non-MNP10 1200 bps connection if it does not receive MNP link activity from the remote modem

Modem will disconnect a non-MNP10 1200 bps connection if it does not receive MNP link activity from the remote modem for a period of 2 minutes

BIT-MAPPED REGISTER :T23

Format

AT [cmds] :T23=n [cmds]

Default:

Unidentified

Range:

Unidentified

Unit:

Bit-mapped

Description:

Controls the negotiation of rate

Bit

Value

Function

3- 0

 

Not used

4

0

1

Modem examines line quality and then sets speed during a V.32 connection

Disabled

7- 5

 

Not used

BIT-MAPPED REGISTER :T26

Format

AT [cmds] :T26=n [cmds]

Default:

0

Range:

0-255

Unit:

Bit-mapped

Description:

Used to speed up cellular connection time

Bit

Value

Function

0

0

1

2 second billing delay enabled

2 second billing delay disabled

1

0

1

V.32 mode answer tone length normal

V.32 mode answer tone length shortened

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal

Command

Break from DTE

Modem receives \Bn form local DTE

Break sent by local modem

Break received from remote modem

\K0

Online command mode enabled, send no break to remote modem

Break sent to remote modem and buffered cleared

Send break to remote modem, modem set to command mode

Buffers cleared, break sent to DTE

\K1

Break sent to remote modem and buffers cleared

Break sent to remote modem and buffered cleared

Send break to remote modem

Buffers cleared, break sent to DTE

\K2

Online command mode enabled, send no break to remote modem

Send break to remote modem immediately

Send break to remote modem, modem set to command mode

Break sent immediately to DTE

\K3

Send break to remote modem immediately

Send break to remote modem immediately

Send break to remote modem

Break sent immediately to DTE

\K4

Online command mode enabled, send no break to remote modem

Send break with transmitted data

Send break to remote modem, modem set to command mode

Break sent with received data to the DTE

\K5

Send break with transmitted data

Send break with transmitted data

Send break to remote modem

Break sent with received data to the DTE

Buffer disconnect delay

Type:

Configuration

Format

AT [cmds] )%Dn [cmds]

Default:

0

Range:

0-255

Unit:

1 sec

Description:

Sets the delay within which the modem tries to process data within itís transmit receive buffer, before it disconnects

CLEAR TO SEND TIME DELAY

Type:

Configuration

Format

AT [cmds] :Vn [cmds]

Default:

0

Range:

0-255

Unit:

.0125 second

Description:

Sets the time the modem waits before engaging CTS (Clear To Send)

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.21 and V.22 at 300 or 1200bps

B1

Bell 103 and 212A at 300 or 1200bps

connect message TIMER

Type:

Register

Format

AT [cmds] :T14=n [cmds]

Default:

0

Range:

0-255

Unit:

.1 sec

Description:

The period of time that the modem waits before or after a connect message to force CTS, DSR and DCD to high

Connect state

Type:

Immediate

Format:

AT [cmds] On [cmds]

Description:

Puts the modem into a connect state

Command

Function

O

Begin connect state

O1

Begin connect state and retrain if connected at 2400bps or higher

Connection training TIMER for v.32 and v.32bis

Type:

Register

Format

AT [cmds] :T17=n [cmds]

Default:

0

Range:

0, 5-28

Unit:

Unidentified

Description:

The period of time that the modem uses for exchanging the training sequences while trying to establish a V.32 or a V.32bis connection

CTS Activation TIMER

Type:

Register

Format

AT [cmds] :T16=n [cmds]

Default:

0

Range:

0-255

Unit:

12.5 sec

Description:

When DCD and or DSR have been turned on, this is the amount of time before CTS is turned on

cts, dsr and dcd connection control

Type:

Configuration

Format:

AT [cmds] @Cn [cmds]

Description:

Sets when CTS,DSR and DCD go on

Command

Function

í @C0

CTS,DSR and DCD forced high after connect message is sent

@C1

CTS,DSR and DCD forced high before connect message is sent

data carrier detect

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Selects data carrier detect mode

Command

Function

&C0

DCD forced high

&C1

DCD follows the state of the remote system, with DCD forced high after connect message

&C2

DCD forced high except during at disconnect

DATA SEND READY TIME DELAY

Type:

Configuration

Format

AT [cmds] :Xn [cmds]

Default:

0

Range:

0-255

Unit:

.0125 second

Description:

Sets the time the modem waits before engaging data send ready

DCD delay

Type:

Configuration

Format

AT [cmds] :Un [cmds]

Range:

0-255

Unit;

.0125 sec

Description:

Sets the delay before the modem switches DCD on

DCD turn on delay TIMER

Type:

Register

Format

AT [cmds] :T6=n [cmds]

Default:

200

Range:

0-255

Unit:

.001sec

Description:

In normal mode V.23 half duplex connections, this is the period of time that the modem waits after the carrier has been turned on, before it begins to look for data

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

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DS=n

Dial stored telephone number n

DT

Tone dialing enabled/Pulse dialing disabled

DW

Dialing resumed following dial tone detection

D!

Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.

D@

Wait for Quiet 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.

DA

Link negotiation performed at 4800 bps

DJ

Link negotiation performed at 1200 bps

DK

Cellular connection

DNx

Used as the last character in a dial string, if connection fails then a connection is attempted with the stored number x, which has a range of 1-9 and is previously stored using the &Z command or the \P command

DO

modem is set to work with a remote (cell-side) cellular phone

DS

Dials the first number stored using the &Z command

D+x

Dials, connects, then initiates the logon sequence x

DM

Override set operating mode and dial in LAPM mode

DQ

Override set operating mode and dial in LAPM mode with fallback to normal mode

DU

Override set operating mode and dial in direct mode

DV

Override set operating mode and dial in LAPM mode with fallback to MNP

DX

Override set operating mode and dial in auto-reliable mode

DY

Override set operating mode and dial in MNP reliable mode

DZ

Override set operating mode and dial in normal mode

Dial access security

Type:

Configuration

Format:

AT [cmds] $Gn [cmds]

Description:

Sets dial access security during logon

Command

Function

$G0

Dial access security disabled

$G1

Dial access security enabled

dial access security database display

Type:

Immediate

Format:

AT [cmds] $In [cmds]

Description:

Displays the dial access security database

Display contents of registers

Type:

Immediate

Format:

AT [cmds] %Rn [cmds]

Description:

Display content of registers

Command

Function

%R0

Displays contents of all S-registers

%R1

Displays content of all :Tn Commands

DISPLAY TELEPHONE NUMBERS

Type:

Immediate

Format:

AT [cmds] \Fn [cmds]

Description:

Displays numbers stored in the directory

DSR AND CTS CONTROL FOR SERIAL PORT

Type:

Configuration

Format:

AT [cmds] \Dn [cmds]

Description:

Controls data send ready and clear to send

Command

Function

í \D0

DSR and CTS forced high

\D1

DSR and CTS follow DCD, If &C1 is set then DSR follows off-hook

\D2

DSR and CTS follow DCD

\D3

DSR set to ITU-T recommendations, CTS forced high

\D4

DSR and CTS set to ITU-T recommendations

DSR disconnect TIMER

Type:

Register

Format

AT [cmds] :T22=n [cmds]

Default:

34

Range:

0-255

Unit:

.0125 sec

Description:

The period of time after DCD and or CTS are dropped until DSR is dropped at disconnect

Dumb Mode

Type:

Configuration

Format:

AT [cmds] -Hn [cmds]

Description:

Sets the modem to ignore commands (Dumb mode)

Command

Function

-H1

Dumb mode disabled

-H2

Dumb mode enabled

Edit dial accesss security database

Type:

Configuration

Format

AT [cmds] )$Hn [cmds]

Range:

1-9

Description:

Edits the dial access security database position n

Edit logon sequence

Type:

Configuration

Format

AT [cmds] )$Ln [cmds]

Range:

1-9

Description:

Edits the logon sequence n

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

í \V2

Extended error correction protocol result codes enabled

\V3

/REL added to extended error correction result codes, displays Hayes short result codes

\V4

Extended error correction protocol result codes enabled

Fallback speed

Type:

Configuration

Format:

AT [cmds] -Qn [cmds]

Description:

Sets the type of fallback used by the modem

Command

Function

-Q0

V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps or 1200bps connection disabled

-Q1

V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps connection enabled

-Q2

V.fast, V.32bis, or V.32 MNP reliable connection fallback to a MNP reliable 2400bps or 1200bps connection enabled

False answer disconnect TIMER

Type:

Register

Format

AT [cmds] :T7=n [cmds]

Default:

60

Range:

0-255

Unit:

1 sec

Description:

In normal mode, when V.23 half duplex connections occur after fallback, this is the period of time that the modem waits before disconnecting after receiving no data

FIRMWARE VERSION display

Type:

Immediate

Format:

AT [cmds] %Vn [cmds]

Description:

Displays the firmware main code version for the modem

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Description:

Selects modem port flow control

Command

Function

í \G0

Flow control disabled

\G1

XON/XOFF flow control enabled

\G2

XON/XOFF flow control enabled uni-directionally

Hewlett Packard EMULATION

Type:

Configuration

Format:

AT [cmds] \Hn [cmds]

Description:

Configures the modem to emulate Hewlett Packard ENQ/ACK

Command

Function

í \H0

HP ENQ/ACK disabled

\H1

HP ENQ/ACK enabled within a MNP reliable link/terminal emulated

\H2

HP ENQ/ACK enabled within a MNP reliable link/host emulated

INACTIVITY TIMER

Type:

Configuration

Format:

AT [cmds] \Tn [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.

Inactivity timer (serial port)

Type:

Configuration

Format

AT [cmds] )Qn [cmds]

Default:

0

Range:

0-255

Unit:

1 minute

Description:

Sets the time serial port must be inactive for the modem to automatically shut down

Kermit and uucp spoofing

Type:

Configuration

Format:

AT [cmds] :Kn [cmds]

Description:

Sets the type of Kermit and UUCP protocol used by the modem

Command

Function

í :K0

Kermit and UUCP spoofing disabled (asynchronous protocols)

:K1

Kermit spoofing enabled (asynchronous protocols)

:K2

UUCP spoofing enabled (asynchronous protocols)

kermit mark character

Type:

Configuration

Format

AT [cmds] :Qn [cmds]

Default:

1

Range:

0-31

Unit:

ASCII

Description:

Sets the mark character used by Kermit

Line turnaround TIMER

Type:

Register

Format

AT [cmds] :T4=n [cmds]

Default:

20

Range:

0-255

Unit:

.0125sec

Description:

In normal mode V.23 half duplex connections, after the local modem turns carrier off, this is the amount of time the local modem waits for the remote modem to respond, before it turns the carrier on again and resumes the transmission of data.

Logon sequence password

Type:

Immediate

Format:

AT [cmds] $P [cmds]

Description:

Changes the password used to alter the logon sequence

LOW Battery WARNING

Type:

Configuration

Format:

AT [cmds] )Vn [cmds]

Description:

Sets the type of notification that should occur upon low battery

Command

Function

í )V0

Disabled

)V1

3 Bell characters

)V2

3 Bell characters and LOW BATTERY warning

manual dialing

Type:

Configuration

Format:

AT [cmds] :Dn [cmds]

Description:

Sets if the modem goes off-hook in originate mode

Command

Function

í :D0

If DTR is raised then modem goes off-hook

:D1

If DTR is raised then modem goes off-hook in originate mode, &D must be set

:D2

If DTR is raised then modem goes off-hook in originate mode and dials the first telephone number that is stored, &D must be set

Mnp class connection Messages

Type:

Configuration

Format:

AT [cmds] -Mn [cmds]

Description:

Sets whether or not a class connection message is shown

Command

Function

í -M0

MNP class connection message disabled

-M1

MNP class connection message enabled

Modem Port Rate

Type:

Configuration

Format:

AT [cmds] %Bn [cmds]

Description:

Sets the bits per second rate for the modem port

Command

Function

%B75

75bps

%B300

300bps

%B600

600bps

%B1200

1200bps

%B2400

2400bps

%B4800

4800bps

%B9600

9600bps

%B19200

19200bps

%B38400

38400bps

%B57600

57600bps

%B115200

115200bps

MODEM POrT SPEED CONFIGURATION

Type:

Configuration

Format:

AT [cmds] %Gn [cmds]

Description:

Sets how modem port speed is configured

Command

Function

í %G0

Modem port speed is determined by serial port

%G1

Modem port speed is determined by %B command

ONLINE STATUS

Type:

Immediate

Format:

AT [cmds] \Sn [cmds]

Description:

Lists modem commands with their current settings, displays connection type, elapsed time, and last number dialed

Note:

The information is displayed on several screens, hit any key to scroll down, hit <control> x to cancel

Packet size (parallel port)

Type:

Register

Format

AT [cmds] :T29=n [cmds]

Default:

32

Range:

0-63

Unit:

1 Character

Description:

The maximum number of characters sent in a data packet from computer to modem or from modem to computer

Note:

If the value is set to 0 then the modem selects the best packet size

Parity check

Type:

Configurarion

Format:

AT [cmds] -Pn [cmds]

Description:

Sets how parity is checked

Command

Function

í -P0

Parity for special characters ignored

-P1

Process special characters when their parity matches serial port parity

-P2

Process special characters when their parity matches serial port parity, modem port flow characters are also recognized

Power level adjustment (cellular connections)

Type:

Configuration

Format:

AT [cmds] )Mn [cmds]

Description:

Adjusts the power level used by the modem

Command

Function

)M0

Auto power adjustment (cellular and non cellular)

)M1

Power level adjustment forced (cellular)

PULSE DIAL SETTING

Type:

Configuration

Format:

AT [cmds] %Wn [cmds]

Description:

Sets the format for pulse dialing, where x is the digit being dialed

Command

Function

í %W0

X pulses dialed

%W1

X+1 pulse dialed

%W2

10- x pulses dialed

Read :t (configuration) Register

Type:

Immediate

Format

AT [cmds] ):Tn? [cmds]

Description:

Displays the value of the :T register n

Re-Dial

Type:

Immediate

Format:

AT [cmds] -Dn [cmds]

Description:

Dials or re-dials a number in several different formats

Command

Function

-D<number>

Dials a number up to 98 characters long

-D/x

Dials the telephone stored in the directory location x using the \P command

-DL

Dials last number dialed

-DS

Dials first entry stored in the directory

remote access

Type:

Configuration

Format:

AT [cmds] *En [cmds]

Description:

Enables the use of remote access

Command

Function

í *E0

Remote access disabled

*E1

Remote access enabled

Remote access Attention CHARACTER

Type:

Configuration

Format

AT [cmds] *Sn [cmds]

Default:

42, <*>

Range:

0-126

Unit:

ASCII

Description:

Sets the attention character used to request remote access

remote access Configuration RECOVERY

Type:

Immediate

Format:

AT [cmds] *Q[cmds]

Description:

Ignores changes made but not saved in level 1 remote access sessions

remote access configuration update

Type:

Immediate

Format:

AT [cmds] *U [cmds]

Description:

Saves changes made to the configurations during a level 1 remote access call

Remote Access IDENTIFIER

Type:

Configuration

Format:

AT [cmds] *I [cmds]

Description:

Sets the identifier used in remote access sessions

remote access level change - down

Type:

Immediate

Format:

AT [cmds] *X [cmds]

Description:

Sets remote access down one level

Note:

If remote access is at level 0 then, the remote access session ends and the originating modem is set to connect state

Remote access level change - up

Type:

Immediate

Format:

AT [cmds] *M [cmds]

Description:

Requests to move up to level 1 from level 0 in a remote access session

remote access password

Type:

Immediate

Format:

AT [cmds] *Pn [cmds]

Description:

Sets password for remote access

Command

Function

*P0

Sets password for level 0 remote access

*P1

Sets password for level 1 remote access

remote access request

Type:

immediate

Format:

AT [cmds] *A [cmds]

Description:

Requests a remote access

Remote access security

Type:

Configuration

Format:

AT [cmds] *Rn [cmds]

Description:

Turns on remote access security

Note:

All passwords must be set before enabling Remote Access Security

Command

Function

*R0

Remote access security disabled

*R1

Remote access security enabled

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

í Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code for answer mode disabled

Security database clear

Type:

Immediate

Format:

AT [cmds] $Jn [cmds]

Description:

Clears various security and phone number databases

Command

Function

$J0

Dial access security database cleared and $L1-$L5 restored to default

$J1

Dial access security database cleared, $L1-$L5 restored to default, connection security password database cleared, stored telephone numbers cleared and last number dialed cleared.

SECURITY PASSWORD

Type:

Configuration

Format

AT [cmds] )%In [cmds]

Default:

No password set, password connection security disabled

Description:

Sets a new password for password connection security

serial port parity

Type:

Configuration

Format:

AT [cmds] -On [cmds]

Description:

Changes the parity settings for the serial port

Command

Function

-O0

7 data bits/odd parity

-O1

7 data bits/even parity

-O2

7 data bits/mark parity

-O3

7 data bits/space parity

-O4

8 data bits/no parity

Serial port rate

Type:

Configuration

Format:

AT [cmds] $Bn [cmds]

Description:

Sets the rate of the serial port in bits per second

Command

Function

$B775

775 bps

$B300

300 bps

$B600

600 bps

$B1200

1200 bps

$B2400

2400 bps

$B4800

4800 bps

$B9600

9600 bps

$B19200

19200 bps

í $B38400

38400 bps

$B57600

57600 bps

$B115200

115200 bps

SERIAL PORT RING INDICATION

Type:

Configuration

Format:

AT [cmds] \Rn [cmds]

Description:

Sets preferences for the ring indicator signal

Command

Function

\R0

Signal on during call

\R1

Signal is turned off when call is answered

serial port speed

Type:

Configuration

Format:

AT [cmds] %Un [cmds]

Description:

Sets the serial port speed change type

Command

Function

%U0

Serial port speed can be changed to any other speed

%U1

Keep current port speed

%U2

Serial port speed can be changed from any other speed

Type:

Configuration

Format:

AT [cmds] )Un [cmds]

Description:

Sets the type of notification that should occur 20 seconds before shut down

Command

Function

í )U0

Disabled

)U1

3 Bell characters

)U2

3 Bell characters and SHUT DOWN

Speed Matching

Type:

Configuration

Format:

AT [cmds] %Ln [cmds]

Description:

Sets the type of speed matching used

Command

Function

%L0

Partial speed matching enabled

%L1

Speed matching enabled

%L2

Speed matching disabled

%L3

ITU-T automode enabled

STORE CONFIGURATION (COMPLETE)

Type:

Immediate

Format:

AT [cmds] *Wn [cmds]

Description:

Sets user configurations according to active commands and registers

Note:

Unlike the &W command, this one also stores restricted S-registers

Command

Function

*W0

Stores active commands and registers in configuration 0

*W1

Stores active commands and registers in configuration 1

Store telephone number

Type:

Immediate

Format:

AT [cmds] \Pn [cmds]

Description:

Stores the phone number n of up to 39 digits

TRANSMISSION LEVEL - CELLULAR

Type:

Configuration

Format:

AT [cmds] @Mn [cmds]

Description:

Sets the signal level for transmission while in cellular mode

Command

Function

í @M0

-26 dBm

@M1

-30 dBm

@M2-@M10

-10 dBm

@Mx

After @M10 the level becomes variable and is equal to -x dBm, x has a range of 10 - 35

View mode (logon)

Type:

Configuration

Format:

AT [cmds] $Vn [cmds]

Description:

Sets if data is passed through to from remote computer to local computer, durin a logon sequence

Command

Function

$V0

View mode disabled

$V1

View mode enabled

V.21 and v.23 answer tone TIMER

Type:

Register

Format

AT [cmds] :T3=n [cmds]

Default:

3

Range:

0-33

Unit:

.1 sec

Description:

If the answering modem is set to V.21 or V.23 then :T3 is period of time that the V.25 answer tone is emitted

If the originating modem is set to V.21 or V.23 then :T3 is period of time that the modem waits after it receives tone and proceeds with connection

V.21 connection attempt TIMER

Type:

Register

Format

AT [cmds] :T2=n [cmds]

Default:

0

Range:

0-255

Unit:

.1 sec

Description:

Time that the modem attempts a V.21 connection, before establishing a V.23 half duplex connection

V.23 split speed or a V.23 connection attempt TIMER

Type:

Register

Format

AT [cmds] :T1=n [cmds]

Default:

30

Range:

0-255

Unit:

.1 sec

Description:

Time that the modem attempts a V.23 split speed connection, before establishing a V.21 or a V.23 half duplex connection

V.23 equalizer settings

Type:

Configuration

Format:

AT [cmds] %On [cmds]

Description:

Sets V.23 equalizer settings for half-duplex mode

Command

Function

%O0

Equalizers disabled in V.23 half-duplex mode

%O1

Equalizers enabled in V.23 half-duplex mode

v.23 intercharacter timer

Type:

Register

Format

AT [cmds] :T5=n [cmds]

Default:

7

Range:

0-255

Unit:

.0125sec

Description:

In normal mode V.23 half duplex connections, this is the period of time that the modem waits before sending the last data character held within the transmit buffer and turning the carrier off

V.32, V.22bis or a V.22 connection attempt TIMER

Type:

Register

Format

AT [cmds] :T0=n [cmds]

Default:

40

Range:

0-255

Unit:

.1 sec

Description:

Time that the modem attempts a V.32, V.22bis or V.22 connection, before establishing a V.23 split speed or a V.21 connection

V.fast connection speed

Type:

Register

Format:

AT [cmds] :T42=n [cmds]

Description:

Speed setting for V.fast connection

Command

Function

í :T42=0

Standard V.fast connection speed

:T42=1

Highest V.fast connection speed (2 speeds faster than the standard)

:T42=2

Higher V.fast connection speed (1 speed faster than the standard)

:T42=3

Standard V.fast connection speed

:T42=4

Lower V.fast connection speed (1 speed slower than the standard)

:T42=5

Lowest V.fast connection speed (2 speed slower than the standard)