LASAT COMMUNICATIONS A/S

LASAT 560V INTERNAL
Card Type Modem
Chip Set Rockwell
I/O Options Microphone, speaker
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Protocol Bell 103/212A
V.21, V.22, V.22bis, V.23, V.25, V.32, V.32bis, V.34, K56flex, V90
Fax Modulation Protocol Unidentified
Error Correction/Compression MNP10, V.42, V.42bis
Fax Class Class I
Data Bus 16bit ISA


CONNECTIONS

Function

Label

Function

Label

Telephone line out

CN1

Microphone

CN3
Speaker/headphone

CN2

   


SUPPORTED COMMAND SET

Basic AT Commands

AT, '+++', 'comma', A/
A, B, E, L, M, O, P, T, V, W, Y, Z
&C, &P, &W, &Y,

Extended AT Commands

\A, \B, \G, \K, \L
%C, %L, %Q

Special Commands

*H, )M, :E

S Registers

S0, S1, S2, S3, S4, S8, S9, S10, S12, S16, S24, S92,

Voice/Audio Commands
#CLS, #TL, #VBQ?, #VBS, #VBT, #VCI?, #VGT, #VLS, #VRA, #VRN, #VRX, #VSD, #VSK, #VSP, #VSR, #VSS, #VTD, #VTM, #VTS, #VTX,
Note: See MHI Help File for full command documentation.


Proprietary AT Command Set

AUTO-MODE DETECTION
Type: Configuration
Format: AT [cmds] Nn [cmds]
Description: Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

 Auto-mode detection disabled

N1

 Auto-mode detection disabled


CARRIER CONTROL
Type: Configuration
Format: AT [cmds] Cn [cmds]
Description: For compatibility only

Command

Function

C1

 "OK" is returned, command ignored


CLOCK SOURCE - SYNCHRONOUS TRANSMIT
Type: Configuration
Format: AT [cmds] &Xn [cmds]
Description: For compatibility only

Command

Function

&X0

 For compatibility only

&X1

 For compatibility only

&X2

 For compatibility only


COMMUNICATIONS MODE
Type: Configuration
Format: AT [cmds] &Mn [cmds]
Description: Selects communications mode

Command

Mode

&M0

 Asynchronous mode


COMMUNICATIONS MODE
Type: Configuration
Format: AT [cmds] &Qn [cmds]
Description: Selects communications mode options

Command

Mode

&Q0

 Asynchronous mode

&Q5

 Error correction mode

&Q6

 Buffered asynchronous mode


CTS
Type: Configuration
Format: AT [cmds] &Rn [cmds]
Description: Selects RTS/CTS options

Command

Function

&R0

 CTS actions are based on V.25 bis handshake

&R1

 CTS will drop if required by flow control


CURRENT CONFIGURATION AND STORED PROFILES
Type: Configuration
Format: AT [cmds] &Vn [cmds]
Description: Displays active and stored configuration profiles and the four stored telephone numbers

Command

Function

&V1

 Status of current or last connection is displayed as well as min - max speed, receive level, quality of line, protocol and the cause for disconnect


DATA SET READY (DSR)
Type: Configuration
Format: AT [cmds] &Sn [cmds]
Description: Selects DSR options

Command

Function

&S0

 DSR remains on

&S1

 After answer tone detected, DSR will become active and become inactive after the carrier is lost


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

&Q Setting

&D0

&D1

&D2

&D3

&Q0, &Q5, &Q6

NONE

Command 1

Command 2

Command 5

&Q1, &Q4

Command 4

Command 1

Command 2

Command 5

&Q2, &Q3

Command 2

Command 2

Command 2

Command 2

Command

Function

Command 0

 Modem does not respond to DTR

Command 1

 Modem goes to command mode after DTR goes off

Command 2

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

Command 3

 Modem is initialized after DTR goes off

Command 4

 Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is not affected

Command 5

 A soft reset is performed after the DTR goes off. The loaded profile is determined by the &Y setting


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

DJ

 MNP10 link will be negotiated at1200bps for this call

DK

 MNP10 power level adjustment enabled for this call

DL

 Re-dial last number

DP

 Pulse dialing enabled

DR

 Recognized but ignored

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!

 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;

 Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.


FACTORY DEFAULT PROFILE
Type: Configuration
Format: AT [cmds] &F [cmds]
Description: Sets values in active profile to factory configuration

Command

Function
»

&F0

 Factory profile 0 is set
 

&F1

 Factory profile 1 is set


FLOW CONTROL
Type: Configuration
Format: AT [cmds] &Kn [cmds]
Description: Enables flow control options

Command

Function

&K0

 Flow control disabled

&K3

 RTS/CTS flow control enabled

&K4

 XON/XOFF flow control enabled

&K5

 Transparent XON/XOFF flow control enabled

&K6

 RTS/CTS and XON/XOFF flow control enabled


GUARD TONE
Type: Configuration
Format: AT [cmds] &Gn [cmds]
Description: Commands the modem to transmit a guard tone in V.22/V.22bis
Note: Used primarily for international data transmission

Command

Function
 

&G0

 Guard tone disabled
 

&G1

 Guard tone enabled
»

&G2

 1800Hz guard tone enabled V.22/V.22bis


HOOK CONTROL
Type: Immediate
Format: AT [cmds] Hn [cmds]
Description: Selects whether the modem is on-hook or off-hook

Command

Function

H

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

H1

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


JACK TYPE
Type: Configuration
Format: AT [cmds] &Jn [cmds]
Description: For compatibility only


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] In [cmds]
Description: Displays information requested

Command

Function

I0

 Reports modem model and speed

I1

 Reports ROM checksum

I2

 Tests and reports ROM checksum

I3

 Reports revision of firmware

I4

 Reports any other product identification

I5

 Reports parameter for Country Code

I6

 Reports any other product identification


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 disabled in answer mode


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 tone detection disabled; result codes 0 - 4, 8 enabled.

X1

 Busy tone detection disabled; result codes 0 - 5, 8, 10 - 15, 18 enabled.

X2

 Busy tone detection disabled; result codes 0 - 6, 8, 10 - 15, 18 enabled.

X3

 Busy tone detection enabled; result codes 0 - 6, 8, 10 - 15, 18 enabled.

X4

 Busy tone detection enabled; result codes 0 - 8, 10 - 15, 18 enabled.


TEST MODES
Type: Immediate
Format: AT [cmds] &Tn
Description: Selects test options

Command

Function

&T0

 End current test

&T1

 Begin local analog loopback test

&T2

 Returns Error

&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

&T8

 Begin local analog loopback and self-test


Extended Proprietary AT Commands

CONNECT MODE
Type: Configuration
Format: AT [cmds] \Nn [cmds]
Description: Controls the type of connection the modem will operate in

Command

Function

\N0

 Normal mode enabled

\N1

 Direct mode enabled

\N2

 Reliable mode enabled

\N3

 Auto-reliable mode enabled

\N4

 LAPM reliable mode enabled

\N5

 MNP reliable mode enabled


DTE AUTORATE ADJUSTMENT

Type: Configuration
Format: AT [cmds] \Jn [cmds]
Description: Determines if the DTE speed will be adjusted to match the line speed after the connection is complete

Command

Function

\J0

 Adjustment of DTE speed is disabled

\J1

 Adjustment of DTE speed is enabled


EXTENDED RESULT CODES
Type: Configuration
Format: AT [cmds] \Vn [cmds]
Description: Selects extended result codes controlled by command settings X, W, S95

Command

Function

\V1

 Extended result codes enabled in single line format


LINE QUALITY MONITOR & AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD
Type: Configuration
Format: AT [cmds] %En [cmds]
Description: Controls line quality, auto-retrain mode and fallback/fall-forward

Command

Function

%E0

 Line quality monitor and auto-retrain disabled

%E1

 Line quality monitor and auto-retrain enabled

%E2

 Line quality monitor and auto-fallback/fall-forward enabled


MODULATION SELECT
Type: Configuration
Format: AT [cmds] %Mn [cmds]
Description: For compatibility only

Command

Function

%M0

 "OK" is returned, command ignored

%M1

 "OK" is returned, command ignored


PULSE CODE MODULATION MODE
Type: Configuration
Format: AT [cmds] %Vn [cmds]
Description: Selects the pulse code modulation for analog to digital conversion

Command

Function

%V0

 µ-law is selected

%V1

 A-law is selected


Special Commands

BLACKLISTED NUMBERS
Type: Immediate
Format: AT [cmds] *B [cmds]
Description: The modem will return a list of blacklisted numbers to the DTE. If there are no numbers blacklisted, then the OK result code is returned


CALL BACK
Type: Configuration
Format: AT [cmds] *Cn [cmds]
Description: Controls call back

Command

Function

*C0

 Call back disabled

*C1

 Call back enabled


CALL BACK DIRECTIORY
Type: Immediate
Format: AT [cmds] *L [cmds]
Description: Call back directory is displayed


CALLBACK PASSWORD
Type: Immediate
Format: AT [cmds] *Pn:<password>:<phone number> [cmds]
Description: A password is stored and a corresponding telephone number is stored or deleted in NVRAM (up to 4 pairs may be entered)
Note: Password must be between 6 and 12 characters and the telephone number is up to 40 characters


COUNTRY SELECT
Type: Immediate
Format: AT [cmds] *NCnn
Description: This will check if the number that is entered matches the country code of one of the countries that are supported

Command

Function

40

 Australia

1

 Austria

2

 Belgium

20

 Canada

3

 Denmark

4

 Finland

5

 France

6

 Germany

7

 Ireland

8

 Italy

43

 Japan

9

 Luxembourg

21

 Mexico

10

 Netherlands

48

 New Zealand

11

 Norway

12

 Portugal

47

 Singapore

13

 Spain

14

 Sweden

15

 Switzerland

16

 United Kingdom

22

 United States


DELAYED NUMBERS
Type: Immediate
Format: AT [cmds] *D [cmds]
Description: A list of the delayed numbers and the delay that is associated with each is returned. If there are no delayed numbers then the OK result code is returned


DISTINCTIVE RING
Type: Configuration
Format: AT [cmds] -SDR=n [cmds]
Description: Selects ringing type

Command

Function
»

-SDR=0

 Distinctive ring is disabled. Reported as RING
 

-SDR=1

 Distinctive ring type 1 enabled (RING1)
 

-SDR=2

 Distinctive ring type 2 enabled (RING2)
 

-SDR=3

 Distinctive ring type 1 and 2 enabled (RING1, RING2)
 

-SDR=4

 Distinctive ring type 3 is enabled (RING3)
 

-SDR=5

 Distinctive ring type 1 and 3 enabled (RING1, RING3)
 

-SDR=6

 Distinctive ring type 2 and 3 enabled (RING2, RING3)
 

-SDR=7

 Distinctive ring type 1, 2 and 3 enabled (RING1, RING2, RING3)


FALLBACK
Type: Configuration
Format: AT [cmds] -Qn [cmds]
Description: Allows fall back to speeds slower than 4800bps

Command

Function
 

-Q0

 Fallback to 2400bps (V.22bis) and 1200bps (V.22) disabled
»

-Q1

 Fallback to 2400bps (V.22bis) and 1200bps (V.22) enabled


KEY ABORT
Type: Configuration
Format: AT [cmds] *Kn [cmds]
Description: Controls key abort

Command

Function
»

*K0

 Key abort enabled
 

*K1

 Key abort disabled


MNP - EXTENDED SERVICES
Type: Configuration
Format: AT [cmds] -Kn [cmds]
Description: Selects conversion of a V.42 LAPM connection to an MNP 10 connection

Command

Function
»

-K0

 V.42 LAPM to MNP 10 conversion is disabled
 

-K1

 V.42 LAPM to MNP 10 conversion is enabled


MNP10-ECM
Type: Configuration
Format: AT [cmds] -SEC=n [cmds]
Description: Enables and Disables MNP10-ECM modes

Command

Function
Note: Exact command is not identified for these settings


MODE SELECTION
Type: Configuration
Format: AT [cmds] +MS=x,y,z,a,b,c,d [cmds]
Description: Selects protocol mode

Command

Function

x=0

 V.21 (300bps)

x=1

 V.22 (1200bps)

x=2

 V.22bis (2400 or 1200bps)

x=3

 V.23 (1200bps)

x=9

 V.32 (9600 or 4800bps)

x=10

 V.32bis (14400, 12000, 9600, 7200 or 4800bps)

x=11

 V.34 (33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 14400, 12000, 9600, 7200, 4800 or 2400bps)

x=56

 K56flex (56000, 54000, 52000, 50000, 48000, 46000, 44000, 42000, 40000, 38000, 36000, 34000, 32000) (default)

x=64

 Bell 103 (300bps)

x=69

 Bell 212 (1200bps)

y=0

 Automode disabled

y=1

 Automode enabled without V.8 (with the exception of V.34) (default)

z, a=300

 Set minimum or maximum transfer rate at 300bps, respectively.

z, a=1200

 Set minimum or maximum transfer rate at 1200bps, respectively.

z, a=2400

 Set minimum or maximum transfer rate at 2400bps, respectively.

z, a=4800

 Set minimum or maximum transfer rate at 4800bps, respectively.

z, a=7200

 Set minimum or maximum transfer rate at 7200bps, respectively.

z, a=9600

 Set minimum or maximum transfer rate at 9600bps, respectively.

z, a=12000

 Set minimum or maximum transfer rate at 12000bps, respectively.

z, a=14400

 Set minimum or maximum transfer rate at 14400bps, respectively.

z, a=16800

 Set minimum or maximum transfer rate at 16800bps, respectively.

z, a=19200

 Set minimum or maximum transfer rate at 19200bps, respectively.

z, a=21600

 Set minimum or maximum transfer rate at 21600bps, respectively.

z, a=24000

 Set minimum or maximum transfer rate at 24000bps, respectively.

z, a=26400

 Set minimum or maximum transfer rate at 26400bps, respectively.

z, a=28800

 Set minimum or maximum transfer rate at 28800bps, respectively.

z, a=31200

 Set minimum or maximum transfer rate at 31200bps, respectively.

z, a=32800

 Set minimum or maximum transfer rate at 32800bps, respectively.

z, a=33600

 Set minimum or maximum transfer rate at 33600bps, respectively.

z, a=34000

 Set minimum or maximum transfer rate at 34000bps, respectively.

z, a=36000

 Set minimum or maximum transfer rate at 36000bps, respectively.

z, a=38000

 Set minimum or maximum transfer rate at 38000bps, respectively.

z, a=40000

 Set minimum or maximum transfer rate at 40000bps, respectively.

z, a=42000

 Set minimum or maximum transfer rate at 42000bps, respectively.

z, a=44000

 Set minimum or maximum transfer rate at 44000bps, respectively.

z, a=46000

 Set minimum or maximum transfer rate at 46000bps, respectively.

z, a=48000

 Set minimum or maximum transfer rate at 48000bps, respectively.

z, a=50000

 Set minimum or maximum transfer rate at 50000bps, respectively.

z, a=52000

 Set minimum or maximum transfer rate at 52000bps, respectively.

z, a=54000

 Set minimum or maximum transfer rate at 54000bps, respectively.

z, a=56000

 Set minimum or maximum transfer rate at 56000bps, respectively.

b=0

 µ-law

b=1

 A-law

c=1

 RBS detection enabled

d=56000

 The highest maxup rate value is 56000

+MS?

 Selected mode is reported

+MS=?

 Supported mode selections reported


TRANSMISSION LEVEL - CELLULAR
Type: Configuration
Format: AT [cmds] @Mn [cmds]
Range: 0-31
Unit: -1dBm
Description: Sets the signal level for transmission while in cellular mode

Command

Function

@M0

 -26 dBm

@M1

 -30 dBm

@M2-@M10

 -10 dBm

@M11-@M31

 -11dBm to -31dBm


S Registers

BACKSPACE CHARACTER
Type: Register
Format AT [cmds] S5=n [cmds]
Range: 0-32 (default: 8)
Unit: ASCII
Description: Selects a character used for backspace <BS>


BIT-MAPPED REGISTER S14
Format: AT [cmds] S14=n [cmds]
Range: 0-174
Unit: Bit-mapped
Description: Status of command options are indicated

Bit

Value

Function

0

0

 Not used

1

0

» 1

 disabled (E0)

enabled (E1)

2

» 0

1

 Result codes enabled (Q0)

Result codes disabled (Q1)

3

0

1

 Display result codes in numeric format (V0)

Display result codes in verbose format (V1)

4

0

 Not used

5

» 0

1

 Tone dial enabled (T)

Pulse dial enabled (P)

6

0

 Not used

7

0

» 1

 Answer mode enabled

Originate mode enabled


BIT-MAPPED REGISTER S21
Format AT [cmds] S21=n [cmds]
Range: 0-253
Unit: Bit-mapped
Description: Status of command options are indicated

Bit

Value

Function

0

» 0

1

 &J0

&J1

1

» 0

1

 Enable keyabort

Disable keyabort

2

0

» 1

 CTS is always on (&R0)

CTS follows RTS (&R1)

3, 4

0

1

» 2

3

 DTR as &D0 selected

DTR as &D1 selected

&D2 selected

&D3 selected

5

0

1

 DCD as &C0 selected

&C1 selected (default)

6

0

» 1

 DSR as &S0 selected

DSR as &S1 selected

7

» 0

1

 Long space disconnect function disabled (Yn) Y0

Long space disconnect function enabled (Yn) Y0


BIT-MAPPED REGISTER S22
Format AT [cmds] S22=n [cmds]
Range: 0-255
Unit: Bit-mapped
Description: Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio.

Bit

Value

Function

0, 1

0

1

» 2

3

 Off volume (L0)

Low level volume (L1)

Medium level volume (L2)

High level volume (L3)

2, 3

0

» 1

2

3

 Speaker off (M0)

Speaker off on carrier (M1)

Speaker always on (M2)

Speaker on during handshake (M3)

4, 5, 6

0

4

5

6

» 7

 Result codes X0

Result codes X1

Result codes X2

Result codes X3

Result codes X4

7

0

 Not used


BIT-MAPPED REGISTER S23
Format AT [cmds] S23=n [cmds]
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 (&T5)

Remote digital loopback allowed (&T4)

1, 2, 3

0

1

2

3

4

5

6

7

 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

Higher speeds

4, 5

0

1

2

» 3

 Parity even

Not used

Parity odd

No Parity

6, 7

0

1

» 2

 Guard tone disabled (&G0)

Guard tone disabled (&G1)

Guard tone 1800Hz enabled (&G2)


BIT-MAPPED REGISTER S27
Format AT [cmds] S27=n [cmds]
Range: 0-111 (default: 9)
Unit: Bit-mapped
Description: Selects synchronous/asynchronous mode, line type, clock source, and ITU-T/Bell modes.

Bit

Value

Function

0, 1, 3

000

001

010

011

100

101

110

 &M0 or &Q0

&M1 or &Q1

&M2 or &Q2

&M3 or &Q3

&Q4

&Q5

&Q6

2

0

 Not used

4, 5

0

 Not used

6

0

1

 CCITT mode (B0)

Bell mode (B1)


BIT-MAPPED REGISTER S28
Format AT [cmds] S28=n [cmds]
Range: 0-31 (default: 0)
Unit: Bit-mapped
Description:  

Bit

Value

Function

0

0

1

 (\Wn) Default

(\W1) Enabled

1

0

 Not used (&Xn)

2

0

 Not used

3, 4

» 0

1

2

3

 39ms make/61ms break at 10pps (&P0)

33ms make/67ms break at 10pps (&P1)

39ms make/61ms break at 20pps (&P2)

33ms make/67ms break at 20pps (&P3)

5

0

 Not used

6, 7

» 0

1

2

 Link negotiation is at highest speed (MNP) (*H0)

Link negotiation is at 1200bps (*H1)

Link negotiation is at 4800bps (*H2)


BIT-MAPPED REGISTER S31
Format: AT [cmds] S31=n [cmds]
Range: 0-10
Description: Select automode and extended result code format.

Bit

Value

Function

0

0

 Not used

1

0

1

 Auto-mode detection disabled

Auto-mode detection enabled

2, 3

0

1

2

 Enables CONNECT result codes to report DTE speed

Full reporting of CONNECT result codes

Enables CONNECT result codes to report DCE speed

4-7

0

 Not used


BIT-MAPPED REGISTER S40
Format AT [cmds] S40=n [cmds]
Range: 0-255
Unit: Bit-mapped
Description: Controls Fallback, Cellular power level, and break handling; selects MNP extended services and block size.

Bit

Value

Function

0

0

1

 MNP Extended Services disabled (-K0)

MNP Extended Services enabled (-K1)

1

0

» 1

 Fallback to V.22bis/V.22 disabled (-Q0)

Fallback to V.22bis/V.22 enabled (-Q0)

2

» 0

1

 Auto-adjustment power level for Cellular use ()M0)

Force adjustment power level for Cellular use ()M1)

3-5

000

001

010

011

100

» 101

 Break Handling as \K0

Break Handling as \K1

Break Handling as \K2

Break Handling as \K3

Break Handling as \K4

Break Handling as \K5

6, 7

76

00

01

10

 MNP block size is 64 characters (\A0)

MNP block size is 128 characters (\A1)

MNP block size is 192 characters (\A2)

MNP block size is 256 characters (\A3)


BIT-MAPPED REGISTER S41
Format AT [cmds] S41=n [cmds]
Range: 0-31
Unit: Bit-mapped
Description: Selects compression, auto-retrain, flow control, and block mode.

Bit

Value

Function

1 - 0

00

01

10

» 11

 Data compression disabled (%C0)

MNP5 enabled (%C1)

V.42bis enabled (%C2)

MNP5 and V.42bis enabled (%C3)

2, 6

00

01

10

 Fall forward disabled (%E0)

Retain enabled (%E1)

Fallback/fall forward enabled (%E2)

3

0

1

 Flow control disabled (\G0)

Flow control enabled (\G1)

4

0

1

 Stream block mode (\L0)

Block block mode (\L1)

5-7

0

 Not Used


BLIND DIALING DELAY
Type: Register
Format AT [cmds] S6=n [cmds]
Range: 2-255 (default: 4)
Unit: 1 second
Description: Duration of delay after modem goes off-hook and before dialing blindly during modes set by X0, X1 or X3 commands.
Note: W dial modifier also uses S6 to set the maximum time to wait


BREAK OPTIONS
Type: Register
Format AT [cmds] S82=n [cmds]
Description: Sets the method for break transmission during error-control and ASB connections.

Command

Function

S82=3

 Expedited signaling, immediately send timed break

S82=7

 Destructive signaling, buffers cleared, immediately send timed break

S82=128

 In-sequence signaling, timed break sent in sequence with transmitted data (default)


CELLULAR TRANSMIT LEVEL
Type: Register
Format AT [cmds] S201=n [cmds]
Unit: Bit-mapped
Description: Support Cellular connections. Bits are set by the @Mn and :En commands (default: 20h)

Bit

Function

0-4

 Initial Cellular power level setting (@M0)

5

 Compromise Equalizer Enable command (:E1)

6, 7

 Not used


CONNECTION FAILURE CODES
Type: Register
Format AT [cmds] S86=n [cmds]
Description: Reports codes which correspond to the possible causes of a connection failure

Value

Meaning

0

 Normal hang up

4

 Carrier signal lost

5

 No error-control detected for remote modem during feature negotiation

6

 Remote modem failed to respond to feature negotiation

7

 Local modem is asynchronous-only, remote modem is synchronous-only

8

 No common framing technique found

9

 No common protocol found

10

 Remote modem sent erroneous feature negotiation message

11

 Remote modem failed to send synchronous information

12

 No failure - remote modem disconnected normally

13

 Remote modem failed to respond after 10 re-transmissions same message

14

 Violation of negotiated protocol caused failure


DCE LINE SPEED
Type: Register
Format AT [cmds] S37=n [cmds]
Description: Sets the maximum allowable data exchange rate attempted during handshake process. Interlinked with the Fn command.

Bit

Value

Function

0-3

» 0000

   00xx

   0100

   0101

   0110

   0111

   1000

   1001

   1010

   1100

 Auto mode connection is attempted

300bps

Not used

1200bps

2400bps

V.23

4800bps

9600bps

12.0Kbps

7200bps

4-7

0

 Not used


DIAL BACK DELAY
Type: Register
Format AT [cmds] S203=n [cmds]
Range: 0-255 (default: 120)
Unit: 1 second
Description: Sets the time the modem waits before a redial is made


DISCONNECT DELAY
Type: Register
Format AT [cmds] S38=n [cmds]
Range: 0-255
Unit: 1 second
Description: Sets delay between when the modem receives the command to disconnect, and the disconnect. Applies only to error correction connections. A value of 255 allows an indefinite amount of time to send buffered data prior to hanging-up.


DISCONNECT INACTIVITY TIMER
Type: Register
Format AT [cmds] S30=n [cmds]
Range: 0-255 tens of seconds (0-2550 seconds) default: 0
Unit: 10 seconds
Description: Duration of time that the modem will stay on line when there is no data being sent or received
Note: S30=0 disables the timer and allows indefinite inactivity.


DTR CHANGE THRESHOLD
Type: Register
Format AT [cmds] S25=n [cmds]
Range: 0-255 (default: 5)
Unit: .01 seconds
Description: Sets maximum time a DTR signal will be ignored before hanging up


ERROR CORRECTION/COMPRESSION
Type: Register
Format: AT [cmds] S46=n [cmds]
Description: Selects active error correction and compression protocols (LAPM and V.42bis)

Command

Function

S46=136

 Error correction protocol, no compression

S46=138

 Error correction protocol, with data compression (default)


EXTENDED RESULT CODES
Type: Register
Format AT [cmds] S95=n [cmds]
Range: 0-255 (default:32)
Unit: Bit-mapped
Description: Works in combination with the Wn command to enable extended result codes. Features enabled by S95 take precedence over the options selected by Wn.

Bit

Function

0

 CONNECT result code reports DCE speed instead DTE speed.

1

 Adds "/ARQ" to all verbose CONNECT result codes. (XXXX = rate)

2

 CARRIER result codes enabled. (XXXX = rate)

3

 PROTOCOL result codes enabled. (XXXX = protocol identifier)

4

 Not used.

5

 COMPRESSION result codes enabled. (XXXX = compression type)

6

 Not used

7

 Not used


FAX TRANSMISSION LEVEL
Type Register or Configuration
Format AT [cmds] S92=n [cmds]
Range 0-15 (0 to -15) default: 10 (-10 dBm)
Unit -1 dBm
Description Sets the transmit attenuation level. 0 to 15 dBm for FAX mode which results in a transmit level from 0 to -15 dBm (applies to switched phone lines)


FLASH DIAL MODIFIER TIME
Type: Register
Format AT [cmds] S29=n [cmds]
Range: 0-255
Unit: .01 second
Description: Time the modem will go on-hook upon receiving the ! dial modifier in dial string.
Note: This is a country dependent parameter and so the time can be limited


FLOW CONTROL
Type: Register
Format AT [cmds] S39=n [cmds]
Description: Displays the current flow control

Bits

Value

Meaning

0-2

000

001

100

101

110

 Flow control disabled

RTS/CTS flow control enabled (&K3) (default)

XON/XOFF flow control enabled (&K4)

Transparent XON flow control enabled (&K5)

Both methods (&K6)


HDLC/BSC
Type: Register
Format: AT [cmds] S20=n [cmds]
Description: High-Level Data Link Control (HDLC) protocol which provides error correction at the data link layer; or Binary Synchronous Character (BSC) protocol which requires that both sending and receiving devices are synchronized before data transmission begins, must be programmed before &Q4 is issued


LAPM FAILURE CONTROL
Type: Register
Format AT [cmds] S36=n [cmds]
Description: Selects the action of the modem if it fails to connect with the error-correction protocol set in &Q.

Command

Function

S36=0

 Hang up

S36=1

 Attempt a direct connection

S36=3

 Attempt a normal mode connection

S36=4

 Attempt an MNP connection; if that fails, hang up.

S36=5

 Attempt an MNP connection; if that fails, attempt a direct connection.

S36=6

 Not used

S36=7

 Attempt an MNP connection; if that fails, attempt a normal mode connection. (default)


NEGOTIATION OPTIONS
Type: Register
Format: AT [cmds] S48=n [cmds]
Description: Selects active error correction and compression protocols

Command

Function

S48=0

 Detection negotiation disabled, proceed with LAPM

S48=7

 Detection negotiation enabled (default)

S48=128

 Detection negotiation disabled, fall-back to options set in S36. Can force MNP


NO CARRIER TIME-OUT
Type: Register
Format AT [cmds] S7=n [cmds]
Range: 1-225 (default: 50)
Unit: 1 second
Description: Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls.
Note: @ dial modifier also uses S7 to set the maximum time to wait.


PSTN TRANSMISSION LEVEL
Type Register or Configuration
Format AT [cmds] S91=n [cmds]
Range 0-15 (0 to -15) default: 10 (-10 dBm)
Unit -1 dBm
Description Sets the transmit attenuation level. 0 to 15 dBm for PSTN mode which results in a transmit level from 0 to -15 dBm


RTS TO CTS DELAY
Type: Register
Format AT [cmds] S26=n [cmds]
Range: 0 - 255 (default: 1)
Unit: .01 second
Description: Sets the duration of delay for CTS to respond to RTS status change
Note: This is only used when &R0 is set.


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. Issuing an &T0 or H command from the command mode will cause the test to terminate


XON CHARACTER
Type: Register
Format: AT [cmds] S32=n [cmds]
Range: 0-255 (default: 17) 11h
Unit: ASCII
Description: Sets the character used to represent XON


XOFF CHARACTER
Type: Register
Format: AT [cmds] S33=n [cmds]
Range: 0-255 (default: 19) 13h
Unit: ASCII
Description: Sets the character used to represent XOFF