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US ROBOTICS MP/8

3COM CORPORATION

US ROBOTICS MP/8

Card Type

Modem (asynchronous)

Chip Set

Unidentified

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103/212A, ITU-T V.34, V.FC, V.32terbo, V.32bis, V.32, V.25, V.23, V.22bis, V.22, V.21

Fax Modulation Protocol

V.17, V.29, V.27ter, V.21

Error Correction/Compression

V.42, V.42bis, MNP5

Fax Class

Class I & II

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

DC power

CN1

RJ-45 jack channel 2

CN12

RJ-11 jack channel 1

CN2

RJ-45 jack channel 3

CN13

RJ-11 jack channel 2

CN3

RJ-45 jack channel 4

CN14

RJ-11 jack channel 3

CN4

RJ-45 jack channel 5

CN15

RJ-11 jack channel 4

CN5

RJ-45 jack channel 6

CN16

RJ-11 jack channel 5

CN6

RJ-45 jack channel 7

CN17

RJ-11 jack channel 6

CN7

RJ-45 jack channel 8

CN18

RJ-11 jack channel 7

CN8

Unidentified

CN19

RJ-11 jack channel 8

CN9

Unidentified

CN20

Unidentified

CN10

Power switch

SW1

RJ-45 jack channel 1

CN11

   

 

 

 

 

 

 

 

 

USER CONFIGURABLE SETTINGS

Setting

Label

Position

DTR normal operation

SW2/1

Off

DTR always on

SW2/1

On

Verbal result codes

SW2/2

Off

Numeric result codes

SW2/2

On

Result codes disabled

SW2/3

Off

Result codes enabled

SW2/3

On

Command mode local echo enabled

SW2/4

Off

Command mode local echo disabled

SW2/4

On

Auto-answer enabled

SW2/5

Off

Auto-answer disabled

SW2/5

On

Carrier detect normal operation

SW2/6

Off

Carrier detect always on

SW2/6

On

Result codes in Originate and Answer mode

SW2/7

Off

Result codes in Originate mode only

SW2/7

On

Command recognition disabled

SW2/8

Off

Command recognition enabled

SW2/8

On

Modem hangs up and returns to command mode

SW2/9

Off

Modem maintains connection, returns to command mode

SW2/9

On

Load settings from NVRAM

SW2/10

Off

Load fail-safe settings from ROM

SW2/10

On

Factory configured - do not alter

SW3/3-10

Unidentified

CONSOLE PORT BAUD RATE

Rate

SW3/1

SW3/2

9600bps

Off

Off

19.2Kbps

Off

On

38.4Kbps

On

Off

57.6Kbps

On

On

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LED1

Off

Off

Power off

LED1

Green

On

Power on

LED1

Red

On

Critical failure

LED2

Off

Off

Channel 1 is idle

LED2

Green

On

Channel 1 is online

LED2

Orange

On

Channel 1 is dialing

LED2

Green

Flashing

Channel 1 is testing/SDL

LED2

Red

On

Channel 1 critical failure

LED3

Off

Off

Channel 2 is idle

LED3

Green

On

Channel 2 is online

LED3

Orange

On

Channel 2 is dialing

LED3

Green

Flashing

Channel 2 is testing/SDL

LED3

Red

On

Channel 2 critical failure

 

DIAGNOSTIC LED(S) (CONT.)

LED

Color

Status

Condition

LED4

Off

Off

Channel 3 is idle

LED4

Green

On

Channel 3 is online

LED4

Orange

On

Channel 3 is dialing

LED4

Green

Flashing

Channel 3 is testing/SDL

LED4

Red

On

Channel 3 critical failure

LED5

Off

Off

Channel 4 is idle

LED5

Green

On

Channel 4 is online

LED5

Orange

On

Channel 4 is dialing

LED5

Green

Flashing

Channel 4 is testing/SDL

LED5

Red

On

Channel 4 critical failure

LED6

Off

Off

Channel 5 is idle

LED6

Green

On

Channel 5 is online

LED6

Orange

On

Channel 5 is dialing

LED6

Green

Flashing

Channel 5 is testing/SDL

LED6

Red

On

Channel 5 critical failure

LED7

Off

Off

Channel 6 is idle

LED7

Green

On

Channel 6 is online

LED7

Orange

On

Channel 6 is dialing

LED7

Green

Flashing

Channel 6 is testing/SDL

LED7

Red

On

Channel 6 critical failure

LED8

Off

Off

Channel 7 is idle

LED8

Green

On

Channel 7 is online

LED8

Orange

On

Channel 7 is dialing

LED8

Green

Flashing

Channel 7 is testing/SDL

LED8

Red

On

Channel 7 critical failure

LED9

Off

Off

Channel 8 is idle

LED9

Green

On

Channel 8 is online

LED9

Orange

On

Channel 8 is dialing

LED9

Green

Flashing

Channel 8 is testing/SDL

LED9

Red

On

Channel 8 critical failure

LED10

Green

On

Management station status normal

LED10

Red

On

Management station has suffered a critical SNMP agent failure

LED10

Green

Flashing

Management station is testing/SDL

LED10

Green/Red

Flashing

Management station has suffered a non-critical failure

LED10

Off

Off

Management station power is off

LED11

Green

On

Management station status normal

LED11

Red

On

Management station has suffered a critical MP/8 failure

LED11

Off

Off

Management station power is off

LED12

Green

On

Management station is transmitting on LAN port

LED12

Off

Off

Management station is not transmitting on LAN port

LED13

Green

On

Management station is receiving on LAN port

LED13

Orange

On

Rate of incoming Ethernet data exceeds processing capability of system

LED13

Red

On

Rate of incoming Ethernet data exceeds memory resources of system

LED13

Off

Off

Rate of incoming data within processing/memory resources of system

DIAGNOSTIC LED(S) (CONT.)

LED

Color

Status

Condition

LED14

Green

On

Management station is transmitting on WAN port

LED14

Off

Off

Management station is not transmitting on WAN port

LED15

Green

On

Management station is receiving on WAN port

LED15

Off

Off

Management station is not receiving on WAN port

SUPPORTED COMMAND SET

Basic AT Commands

AT, Ď+++í, A/

A, B, C, E, F, H, M, O, V

&C, &G, &L, &X, &Z

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S26

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

HELP

Type:

Immediate

Format:

AT [cmds] $ [cmds]

Description:

Displays the help screen

REPEAT LAST COMMAND

Type:

Immediate

Format:

AT [cmds] A> [cmds]

Description:

Repeat last command until canceled by pressing any key.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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,

Dialing paused for amount of time specified in S8 register

D"WXY"

Optional method of denoting telephone numbers. Letters enclosed in quotes are interpreted as numbers according to the system found on a telephone keypad.

D!

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

D@

Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.

D$

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.

D"

Dial the letters that follow

D/

Pause for 125 milliseconds

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports 4 digit product code

I1

Reports results of ROM checksum

I2

Reports results of RAM test

I3

Reports the product name

I4

Reports the current modem settings

I5

Reports the settings stored in NVRAM

I6

Reports statistics for the last call

I7

Reports product configuration

I10

Reports dial security account status information

I11

Displays high speed connection report

I15

Reports caller ID information

 

 

 

 

MODEM CLOCK

Type:

Configuration

Format:

AT [cmds] Kn [cmds]

Description:

Controls the modem clock

Command

Function

í K0

If on-line, display current call duration; if off-line, display the last callís duration

K1

Display the actual time (set clock using ATI3=HH:MM:SS K1)

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

í L2

Medium volume setting

L3

Highest volume setting

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

Suppress result codes when answering

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 enabled.

X2

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

X3

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

í X4

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

X5

Busy tone detection enabled; dial tone detection disabled; all result codes enabled

X6

All result codes enabled

X7

Voice detection disabled; all result codes enabled

 

 

 

 

 

RESET

Type:

Configuration

Format:

AT [cmds] &Zn [cmds]

Description:

Reset the modem. If SW2/10 is set to off, revert to the settings in NVRAM. If SW2/10 is set to on, reset to the &F0 configuration template.

ADDITIONAL RESULT CODES

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Controls the display of the additional result codes

Command

Function

í &A0

Do not display ARQ result codes

&A1

Display ARQ result codes

&A2

Display ARQ result codes, HST, V.32, V.FC or V.34 modulation indicator

&A3

Display ARQ result codes and error control indicator LAPM, HST, MNP, SYNC, or NONE

SERIAL PORT RATE

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Controls the serial port rate

Command

Function

í &B0

Variable serial port rate

&B1

Fixed serial port rate

&B2

In answer mode use fixed rate for ARQ calls and variable rate for non ARQ calls.

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Note: The action each variant of &D causes depends on the setting of &Q

Command

Function

í &D0

Modem does not respond to DTR

&D1

Modem goes to command mode after DTR goes is off

&D2

Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &F [cmds]

Description:

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

Command

Function

í &F0

Load No Flow Control template settings

&F1

Load Hardware Flow Control template settings

&F2

Load Software Flow Control template settings

 

 

TRANSMIT DATA FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Description:

Controls the transmit data flow

Command

Function

í &H0

Flow control disabled

&H1

Hardware flow control enabled

&H2

Software flow control enabled

&H3

Hardware and software flow control enabled

RECEIVE DATA FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Description:

Controls the receive data flow control

Command

Jack Type

í &I0

Disables XON/XOFF flow control

&I1

Modem acts on typed XON/XOFF commands, Ctrl -S, or Ctrl -Q and passes them to remote device

&I2

Modem acts on typed XON/XOFF commands but removes them from data stream

&I3

Hewlett Packard host mode

&I4

Hewlett Packard terminal mode

&I5

Enable flow control on the phone link when the connection is not under error control

DATA COMPRESSION

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Controls the data compression

Command

Function

&K0

Data compression disabled

í &K1

Use auto enable/disable data compression

&K2

Data compression always enabled

&K3

Selective data compression

ERROR CONTROL

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects the error control protocol

Command

Mode

í &M0

Normal mode, no error control

&M4

Normal/ARQ mode

&M5

ARQ asynchronous mode

&M6

V.25bis synchronous mode

 

 

 

 

CONNECTION RATE

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Controls the connection rate

Command

Function

í &N0

Variable rate

&N1

300bps

&N2

1200bps

&N3

2400bps

&N4

4800bps

&N5

7200bps

&N6

9600bps

&N7

12Kbps

&N8

14.4Kbps

&N9

16.8Kbps

&N10

19.2Kbps

&N11

21.6Kbps

&N12

24Kbps

&N13

26.4Kbps

&N14

28.8Kbps

&N15

31.2Kbps

&N16

33.6Kbps

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)

RTS/CTS

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Description:

Selects RTS/CTS options

Command

Function

í &R0

CTS follows RTS in data mode; RTS is ignored in command mode.

&R1

CTS forced high, RTS is ignored.

&R2

Enable hardware flow control of received data

 

 

 

 

 

 

 

 

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&S0

DSR forced high

í &S1

DSR high only while modem is handshaking or connected

&S2

DSR & CTS follows CD when carrier is lost

&S3

DSR follows CD when carrier is lost

&S4

Send the computer a DSR signal at the same time as the CD

&S5

Send DSR normally, and follow CTS with CD

TEST MODES

Type:

Immediate

Format:

AT [cmds] &Tn

Description:

Selects test options

Command

Function

&T0

End current test

&T3

Begin local digital loopback

&T4

Grant remote digital loopback request

&T5

Deny remote digital loopback request

&T6

Request remote digital loopback

&T7

Request remote digital loopback and self-test

STORE ACTIVE PROFILE

Type:

Configuration

Format:

AT [cmds] &Wn [cmds]

Description:

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

BREAK HANDLING

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Controls the break handling

Command

Function

í &Y0

Destructive, donít send break

&Y1

Destructive, expedited break sent

&Y2

Nondestructive, expedited break sent

&Y3

Nondestructive, un-expedited break sent

STORE COMMAND STRING

Type:

Configuration

Format:

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

Description:

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

Note: The command string can be up to 30 characters long; spaces do not count.

 

 

 

SECURITY ACCOUNTS

Type:

Configuration

Format:

AT [cmds] %An [cmds]

Description:

Create and configure security accounts

SERIAL PORT RATE

Type:

Configuration

Format:

AT [cmds] %Bn [cmds]

Description:

Remotely configure a modemís serial port rate

Command

Function

%B0

110bps

%B1

300bps

%B2

600bps

%B3

1200bps

%B4

2400bps

%B5

4800bps

%B6

9600bps

%B7

19200bps

%B8

38400bps

%B9

57600bps

%B10

115200bps

REMOTE CONFIGURATION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Controls the remote configuration

Command

Function

%C0

Defer configuration changes until the call is ended

%C1

Cancel configuration changes and restore the original configuration

%C2

Force configuration changes to take effect immediately

ERASE SECURITY SETTINGS

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Erases selected security settings

Command

Function

%E1

Erase local access password

%E2

Erase autopass password

%E3

Erase passwords in accounts 0-9

%E4

Erase phone numbers in accounts 0-9

%E5

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

 

 

 

 

 

 

REMOTE CONFIGURATION

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Configure another deviceís data remotely

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

LOCAL ACCESS PASSWORD

Type:

Configuration

Format:

AT [cmds] %Ln [cmds]

Description:

Set local access password

PASSWORD SECURITY

Type:

Immediate

Format:

AT [cmds] %P [cmds]

Description:

Disable password security

SECURITY ACCOUNTS

Type:

Configuration

Format:

AT [cmds] %Sn [cmds]

Description:

Access security accounts

TONE FREQUENCIES

Type:

Configuration

Format:

AT [cmds] %Tn [cmds]

Description:

Enalbes recognition of the tone frequencies

ASSIGN PASSWORD

Type:

Immediate

Format:

AT [cmds] %V=PWn [cmds]

Description:

Assign the password in account n in security account as autopass password

HELP

Type:

Configuration

Format:

AT [cmds] #$ [cmds]

Description:

Display the help pannels for the octothorpe (#) command set

 

 

 

 

 

 

 

 

CALLER ID

Type:

Configuration

Format:

AT [cmds] #CID=n [cmds]

Description:

Controls the Caller ID function

Command

Function

#CID=0

Caller ID disabled

#CID=1

Caller ID displays formatted data

#CID=2

Caller ID displays raw hexadecimal data

#CID=3

Enable caller ID with formatted output and name suppressed

#CID=4

Enable caller ID but do not transmit the information to computer

S(status) -REGISTERS

BIT-MAPPED REGISTER S13

Format:

AT [cmds] S13=n [cmds]

Default:

170

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes and display, dial mode, and answer/originate mode.

Bit

Value

Function

0

1

Reset when DTR drops

1

2

Reverse normal auto answer mode

2

4

Disable 250 msec pause before result code display

3

8

On DTR signal, Autodial the number stored in NVRAM at position 0

4

16

At power on/reset, auto dial number stored in NVRAM at position 0

5

32

Disable HST

6

64

Disable MNP level 3

7

128

Hardware reset

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Default:

170

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes and display, dial mode, and answer/originate mode.

Bit

Value

Function

0

í 1

Disconnect on escape code

1

2

Send result codes only when originating a call

 

 

 

 

 

 

 

 

 

BIT MAPPED REGISTER

Type:

Register

Format:

AT [cmds] S15=n [cmds]

Unit:

Bit-mapped

Description:

Controls fallback

Bit

Value

Function

0

1

Disable the modemís extra high frequency equalization if it causes problems on shorter -link calls- for HST modulation only

1

2

Disable online fallback

2

4

Disable 450bps back channel ---HST only

3

8

Reset non-ARQ mode transmit buffer from 1.5Kbytes to 128

4

16

Disable MNP level 4

5

32

Set backspace key to delete

6

64

Alternate MNP setting for some 2400bps MNP modems not made by U.S. Robotics of Microcom.

7

128

Custom applications only

BIT MAPPED REGISTER S16

Type:

Register

Format:

AT [cmds] S16=n [cmds]

Unit:

Bit-mapped

Description:

Controls loopback tests and test pattern

Bit

Value

Function

2

4

Test pattern

3

8

Remote digital loopback

INACTIVITY TIMER

Type:

Register

Format

AT [cmds] S19=n [cmds]

Default:

Unidentified

Range:

Unidentified

Unit:

Minute

Description:

Sets the duration in minutes for the inactivity timer, S19=0 disables the timer

BREAK LENGTH

Format

AT [cmds] S21=n [cmds]

Default:

Unidentified

Range:

Unidentified

Unit:

10msec

Description:

Sets the duration of breaks sent from the modem to the computer or terminal

XON CHARACTER

Format

AT [cmds] S22=n [cmds]

Default:

17

Range:

Unidentified

Unit:

ASCII

Description:

Stores the ASCII code for XON character

FLOW CONTROL CHARACTER - XOFF

Format

AT [cmds] S23=n [cmds]

Default:

19

Range:

Unidentified

Unit:

ASCII

Description:

Stores the ASCII code for the XOFF character

DSR SIGNAL

Type:

Register

Format

AT [cmds] S24=n [cmds]

Default:

150

Range:

Unidentified

Unit:

.02 sec

Description:

Sets the duration between pulsed DSR signals when the modem is set to &S2 or &S3.

DSR RECOGNITION

Type:

Register

Format

AT [cmds] S25=n [cmds]

Default:

5

Range:

Unidentified

Unit:

.1 second

Description:

Sets DTR recognition time

BITMAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Default:

Unidentified

Range:

0

Unit:

Bit-mapped

Description:

Selects modulation

Bit

Value

Function

0

1

Enable ITU-T V.21

1

2

Enable unencoded modulation in V.32 mode

2

4

Disable V.32 modulation

3

8

Disabl;e 2100Hz answer tone

4

0

16

32

48

Complete handshaking sequence:V.42 detection, LAPM error control, MNP

Disable MNP

Disable V.42 detection and LAPM

Disable detection phase

5

0

16

32 48

Complete handshaking sequence:V.42 detection, LAPM error control, MNP

Disable MNP

Disable V.42 detection and LAPM

Disable detection phase

7

128

Unusual software incompatibility

 

 

 

 

BIT-MAPPED REGISTER S28

Format

AT [cmds] S28=n [cmds]

Default:

Unidentified

Range:

8

Unit:

.1 second

Description:

Sets the duration of the extra 3000/600 Hz answer tones sent during handshaking.

BITMAPPED REGISTER S29

Type:

Register

Format

AT [cmds] S29=n [cmds]

Default:

20

Range:

Unidentified

Unit:

.1 sec

Description:

Sets the duration of the V.21 answer tone

VOICE/DATA SWITCH

Type:

Register

Format

AT [cmds] S32=n [cmds]

Default:

9

Range:

Unidentified

Unit:

Unidentified

Description:

Assign voice/data switch function

Value

Function

0

Disabled

1

Voice/data - originate mode

2

Voice/data - answer mode

3

Radial last number

4

Dial number stored at position 0

5

Auto answer on/off toggle

6

Reset modem

7

Initiate remote digital loopback

8

Busy out the phone line toggle

9

Execute stored command

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIT-MAPPED REGISTER S34

Type:

Register

Format:

AT [cmds] S34n [cmds]

Default:

0

Range:

Unidentified

Unit:

Unidentified

Description:

Controls V.32bis

Bit

Value

Function

0

1

Disable V.32bis

1

2

Disable modemís enhanced proprietary V.32bis modulation

2

4

Disable the faster retrains that occure during proprietary V.32terbo modulation

3

8

Enable V.23

4

16

Force the MR LED to show DSR

5

32

Enable MI/MIC

6

64

Disable the remote access busy message

7

128

Disable V.32terbo

TRANSMIT BUFFER

Type:

Register

Format

AT [cmds] S38n [cmds]

Description:

Sets the time before a forced hang up and clearing of the transmit buffer when DTR drops during an ARQ call.

REMOTE ACCESS

Type:

Register

Format

AT [cmds] S41=n [cmds]

Description:

Sets the number of allowable remote access login attempts, thus enabling or disabling remote access.

REMOTE ACCESS ESCAPE CHARACTER

Type:

Register

Format

AT [cmds] S42=n [cmds]

Default:

126

Range:

Unidentified

Unit:

Unidentified

Description:

Stores the ASCII decimal code for the remote access escape character.

GUARD TIME DURATION

Type:

Register

Format

AT [cmds] S43=n [cmds]

Default:

200

Unit:

.02 sec

Description:

Sets the duration of the guard time for the remote access sequence

 

 

 

 

REESTABLISHING CONNECTION INTERVAL

Format

AT [cmds] S44=n [cmds]

Default:

15

Description:

Sets the duration of the interval between losing carrier and reestablishing a connection

BIT-MAPPED REGISTER S51

Format

AT [cmds] S51=n [cmds]

Default:

0

Range:

Unidentified

Unit:

Bit-mapped

Description:

MNP/V.42 control

Bit

Value

Function

0

1

Disable MNP/V.42 for V.22

1

2

Disable MNP/V.42 for V.22bis

2

4

Disable MNP/V.42 for V.32/V.32bis/V.32terbo

6

64

Disable selective reject

7

128

Enable handset exclusion delay

BIT MAPPED REGISTER S53

Type:

Register

Format:

AT [cmds] S53=n [cmds]

Description:

Bit mapped register

Bit

Value

Function

0

1

Dial security enabled

1

2

Prompting enabled

2

4

Local access password protection enabled

BIT MAPPED REGISTER S54

Type:

Register

Format:

AT [cmds] S54=n [cmds]

Description:

Bit mapped register

Bit

Value

Function

0

1

Disable 2400 symbol rate

1

2

Disable 2743 symbol rate

2

4

Disable 2800 symbol rate

3

8

Disable 3000 symbol rate

4

16

Disable 3200 symbol rate

5

32

Disable 3429 symbol rate

6

64

Disable Call Indicate

7

128

Disable V.8

 

 

 

 

 

 

BIT-MAPPED REGISTER S55

Type:

Register

Format

AT [cmds] S55=n [cmds]

Description:

Bit-mapped register

Bit

Value

Function

0

1

Disable 8S-2D mapping

1

2

Disable 16S-4D mapping

2

4

Disable 32S-2D mapping

3

8

Disable 64S-4D mapping

7

128

Enable phase roll detection

BIT-MAPPED REGISTER S56

Type:

Register

Format

AT [cmds] S56 [cmds]

Description:

Bit-mapped register

Bit

Value

Function

0

1

Disable non-linear coding

1

2

Disable TX level deviation

2

4

Disable pre-emphasis

3

8

Disable precoding

4

16

Disable shaping

5

32

Disable 31.2 and 33.6 speeds in V.34

6

64

Disable V.34

7

128

Disable V.FC

BIT-MAPPED REGISTER S69

Type:

Register

Format:

AT [cmds] S69=n [cmds]

Description:

Bit-mapped register

Bit

Value

Function

0

1

Disable plug and play signaling

1

2

Enable carrier loss redial

BIT-MAPPED REGISTER S70

Type

Register or Configuration

Format

AT [cmds] S70=n [cmds]

Description

Bit-mapped register

Bit

Value

Function

0

1

Enable recognition of Ring A

1

2

Enable recognition of Ring B

2

4

Enable recognition of Ring C

3

8

Enable recognition of Ring D