AMQUEST CORPORATION

AM56SOFT
Card Type Modem
Chip Set Unidentified
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Protocol Bell 103A/212
ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, K56Flex, V.90
V.80, H.324, V.61
Fax Modulation Protocol ITU-T V.17, V.29, V.27ter
Error Correction/Compression MNP10, MNP5, V.42, V.42bis
Fax Class Unidentified
Data Bus 32-bit PCI
Card Size Full-length, half-height card


CONNECTIONS

Function

Label

Function

Label
Line out

CN1

 Line in

CN2


SUPPORTED COMMAND SET

Basic AT Commands
AT, ‘+++’, A/
A, E, H, L, M, O, P, Q, T, V, X
&F, &G, &P, &V, &W

S Registers
S0, S1, S2, S3, S4, S5, S6, S8, S10, S11, S12, S18, S29, S46, S95
Note: See MHI Help File for full command documentation.


Proprietary AT Command Set

AUTO-MODE DETECTION
Type: Configuration
Format: AT [cmds] Nn [cmds]
Range: 0-1
Unit: ASCII
Description: Used for compatibility only, no other function


COMMUNICATIONS MODE
Type: Configuration
Format: AT [cmds] &Mn [cmds]
Range: 0-3
Unit: ASCII
Description: Used for compatibility only


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

Command

Mode

&Q0

 Asynchronous mode with speed buffering

&Q1

 Asynchronous mode with speed buffering

&Q2

 Asynchronous mode with speed buffering

&Q3

 Asynchronous mode with speed buffering

&Q6

 Asynchronous mode with speed buffering


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 on DTR toggle

&D2

 Modem goes to command mode and disconnects (hangs up) on DTR toggle;

Auto-Answer is disabled on low DTR.


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

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 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&

 Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.

D^

 Toggles use of tone or pulse for the current dial attempt


EXTENDED RESULT CODES
Type: Configuration
Format: AT [cmds] Wn [cmds]
Description: Enables selection of additional result codes when S95=0; otherwise, S95 takes precedence.

Command

Function

W0

 Enables CONNECT result codes to report DTE speed. If S95=0, then all extended connection result codes are disabled.

W1

 Enables CONNECT result codes to report DTE speed, error correction protocol and line speed. If S95=0, then all CARRIER and PROTOCOL extended result codes are enabled.

W2

 Enables CONNECT result codes to report DCE speed. If S95=0, then all extended result codes are disabled.

W3

 Enables CONNECT resutl codes to report DCE speed and error correction protocol.


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

 Used for compatibility only

&K6

 Used for compatibility only


RECEIVED LINE SIGNAL DETECTOR CONTROL
Type: Configuration
Format: AT [cmds] &Cn [cmds]
Description: Controls how the RLSD reacts to the detection of a received DTE/DTR signal

Command

Function

&C0

 RLSD is always enabled

&C1

 RLSD is enabled based on the state of the carrier


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

Command

Function

I0

 Reports value of report 0 from product configuration file

I1

 Reports value of report 1 from product configuration file

I2

 Reports value of report 2 from product configuration file

I3

 Reports value of report 3 from product configuration file

I4

 Reports value of report 4 from product configuration file

I5

 Reports value of report 5 from product configuration file

I6

 Reports value of report 6 from product configuration file

I7

 Reports value of report 7 from product configuration file

I9

 Reports value of report 9 from product configuration file


SOFT RESET
Type: Immediate
Format: AT [cmds] Z [cmds]
Description: Restores modem profiles previously saved in non-volatile RAM.


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

Command

Function

&T0

 End current test

&T1

 Begin local analog loopback


Extended AT Command Set

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

Command

Function

%E0

 Line quality monitor, auto-retrain and auto-rate are disabled

%E1

 Line quality monitor, auto-retrain and auto-rate are enabled


COMPRESSION
Type: Configuration
Format: AT [cmds] %Cn [cmds]
Description: Selects data compression

Command

Function

%C0

 Data compression disabled

%C1

 MNP5 enabled

%C2

 V.42bis enabled

%C3

 MNP5 and V.42bis; or data compression and correction enabled


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

 Normal mode enabled

\N2

 Reliable mode enabled

\N3

 Auto-reliable mode enabled

\N4

 LAPM reliable mode enabled

\N5

 MNP reliable mode enabled


Special AT Command Set

16-BIT/32-BIT FRAME CHECK SEQUENCE CONTROL
Type: Configuration
Format: AT [cmds] +EFCS=n [cmds]
Description: Controls the use of the 16-bit or 32-bit frame check option when in V.42 mode

Command

Function

n=0

 Enables use of 16-bit frame check sequence


ACTIVE SERVICE CLASS SELECTION
Type: Configuration
Format: AT [cmds] +FCLASS=n [cmds]
Description: Controls auto-retrain mode, fallback/fall-forward and line quality monitor

Command

Function
»

n=0

 Enables data mode
 

n=1

 Enables facsimilie class 1.0 mode
 

n=1.0

 Enables facsimilie class 1.0 mode
 

n=8

 Enables voice mode


BLACKLISTED NUMBERS REPORT
Type: Immediate
Format: AT [cmds] *B [cmds]
Description: Reports the complete list of phone numbers on the DTE blacklist


BREAK HANDING SELECTION
Type: Configuration
Format: AT [cmds] +EB=x,y,z [cmds]
Description: Controls break handling for V.42 operation

Command

Function

x=0

 Break is ignored and not sent to remote DCE

y=0

 V.42 L-signal does not indicate break signal

z=0

 Break is not sent to DTE


CALLER ID
Type: Configuration
Format: AT [cmds] +VCID=n [cmds]
Description: Controls Caller ID mode

Command

Function
»

n=0

 Disable Caller ID mode
 

n=1

 Enable Caller ID mode
 

n=2

 Enables Caller ID mode with unformatted presentation to DTE


COUNTRY CODE SELECTION
Type: Configuration
Format: AT [cmds] +GCI=n [cmds]
Range: 00h-FFh
Unit: Hexadecimal
Description: Selects the country of origin/installation for the modem
Note: Country codes are from Annex A of the ITU-T Recommendation T.35 documentation.


DATA BUFFER MANAGEMENT CONTROL
Type: Configuration
Format: AT [cmds] +ETBM=x,y,z [cmds]
Description: Controls how the data in the buffer is handled upon termination

Command

Function

x=0

 All data is cleared from transmit buffer when DTE requests call termination

y=0

 All data is cleared from receive buffer when DTE requests call termination

z=0

 Modem will not attempt to deliver data in buffer before adandoning the attempt and clearing the data from the buffer


DATA COMPRESSION CONTROL
Type: Configuration
Format: AT [cmds] +DS=x,y,z,a [cmds]
Description: Controls settings on V.42bis data compression, if used

Command

Function
 

x=0

 Direction of data compression is negotiated
»

x=3

 Data compression is enabled in both directions
 

y=0

 Overrides disconnect if V.42bis is not negotiated; modem will remain on-hook
 

z=0 to 2048

 Selects the maximum number of dictionary entries to be negotiated
 

a=0 to 32

 Selects the maximum string length to be negotiated


DATA COMPRESSION REPORTING CONTROL
Type: Configuration
Format: AT [cmds] +DR=n [cmds]
Description: Controls whether or not data compression information is reported to the DTE

Command

Function
 

n=0

 Disable data compression reporting
»

n=1

 Enable data compression reporting


DELAYED NUMBERS REPORT
Type: Immediate
Format: AT [cmds] *D [cmds]
Description: Reports the complete list of delayed numbers and amount of delay


DSVD SELECTION
Type: Configuration
Format: AT [cmds] -SSE=n [cmds]
Description: Controls DSVD mode

Command

Function

n=0

 Disable DSVD mode

n=1

 Enable DSVD mode


DTE FLOW CONTROL SELECTION
Type: Configuration
Format: AT [cmds] +IFC=x,y [cmds]
Description: Controls flow control between modem and DTE while in V.42 mode, or fallback to non-error control mode

Command

Function
 

x=0

 Disables DTE flow control on received data
 

x=1

 Enables software flow control (XON/XOFF), does not pass signal to remote modem
»

x=2

 Enables circuit 133 - ready for receiving
 

y=0

 Disables DTE flow control on transmitted data
 

y=1

 Enables software flow control (XON/XOFF)
»

y=2

 Enables hardware flow control (CTS/RTS)


DTE LOCAL RATE REPORTING SELECTION
Type: Configuration
Format: AT [cmds] +ILRR=n [cmds]
Description: Control whether or not extended format text is reported to the DTE

Command

Function

n=0

 Disables reporting of local port rate

n=1

 Enables reported of local port rate


ERROR CONTROL AND SYNCHRONOUS MODE SELECTION
Type: Configuration
Format: AT [cmds] +ES=x,y,z [cmds]
Description: Controls operation mode when originator, and fallback mode when originator or answerer

Command

Function
 

x=1

 Enables request for normal mode when initiating call
 

x=2

 Enables request for V.42 without detection phase, or if V.8 is used, disable V.42 request when initiating call
»

x=3

 Enables request for V.42 with detection phase when initiating call
 

x=4

 Enables request for MNP mode when initiating call
 

x=6

 Enables reuqest V.80 synchronous access mode and data state is entered when intiating call
»

y=0

 Requests optional LAPM, MNP or normal mode when initiating call
 

y=2

 Requires LAPM, MNP or normal mode error correction mode when initiating call, otherwise disconnect
 

y=3

 Requires LAPM mode when initiating call, otherwise disconnect
 

y=4

 Requires MNP mode when initiating call, otherwise disconnect
 

z=1

 Disables error control when answering calls, uses normal mode
»

z=2

 Enables LAPM, MNP or normal mode while answering calls
 

z=4

 Requires LAPM or MNP mode while answering calls, otherwise disconnect
 

z=5

 Requires LAPM mode while answering calls, otherwise disconnect
 

z=6

 Requires MNP mode while answering calls, otherwise disconnect
 

z=8

 Enables V.80 synchronous access mode and data state is entered whild answering calls


ERROR CONTROL REPORTING
Type: Configuration
Format: AT [cmds] +ER=n [cmds]
Description: Controls whether or not result codes for error control are reported to the DTE

Command

Function
 

n=0

 Disables reporting of error control result codes
»

n=1

 Enables reporting of error control result codes


MODULATION REPORTING CONTROL
Type: Configuration
Format: AT [cmds] +MR=n [cmds]
Description: Controls whether or not +MCR and +MRR result codes are transmitted to the DTE

Command

Function
 

n=0

 Disables transmission of modulation information
»

n=1

 Enables transmission of modulation information +MCR: and +MRR:
 

n=2

 Enables transmission of modulation information +MCR: and Receive Rate Only:.


MODULATION SELECTION
Type: Configuration
Format: AT [cmds] +MS=x,y,z,a,b,c [cmds]
Description: Sets options for active protocol; the transfer rates specified by z, a, b and c must be valid for the protocol selected.

Command

Function

x=V21

 V.21

x=V22

 V.22

x=V22B

 V.22bis

x=V23C

 V.23

x=V32

 V.32

x=V32B

 V.32bis

x=V34

 V.34

x=B103

 Bell 103

x=B212

 Bell 212A

x=K56

 K56flex

y=0

 Automode disabled

y=1

 Auto-detect highest speed enabled

z, a=75

 Set minimum or maximum transfer rate at 75bps, respectively.

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=33600

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

z, a=32000

 Set minimum or maximum transfer rate at 32000bps, 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, c=75

 Set minimum or maximum receive rate at 75bps, respectively

b, c=300

 Set minimum or maximum receive rate at 300bps, respectively

b, c=600

 Set minimum or maximum receive rate at 600bps, respectively

b, c=1200

 Set minimum or maximum receive rate at 1200bps, respectively

b, c=2400

 Set minimum or maximum receive rate at 2400bps, respectively

b, c=4800

 Set minimum or maximum receive rate at 4800bps, respectively

b, c=7200

 Set minimum or maximum receive rate at 7200bps, respectively

b, c=9600

 Set minimum or maximum receive rate at 9600bps, respectively

b, c=12000

 Set minimum or maximum receive rate at 12000bps, respectively

b, c=14400

 Set minimum or maximum receive rate at 14400bps, respectively


MODULATION SELECTION (con't)

b, c=16800

 Set minimum or maximum receive rate at 16800bps, respectively

b, c=19200

 Set minimum or maximum receive rate at 19200bps, respectively

b, c=21600

 Set minimum or maximum receive rate at 21600bps, respectively

b, c=24000

 Set minimum or maximum receive rate at 24000bps, respectively

b, c=26400

 Set minimum or maximum receive rate at 26400bps, respectively

b, c=28800

 Set minimum or maximum receive rate at 28800bps, respectively

b, c=31200

 Set minimum or maximum receive rate at 31200bps, respectively

b, c=33600

 Set minimum or maximum receive rate at 33600bps, respectively

b, c=32000

 Set minimum or maximum receive rate at 32000bps, respectively

b, c=34000

 Set minimum or maximum receive rate at 34000bps, respectively

b, c=36000

 Set minimum or maximum receive rate at 36000bps, respectively

b, c=38000

 Set minimum or maximum receive rate at 38000bps, respectively

b, c=40000

 Set minimum or maximum receive rate at 40000bps, respectively

b, c=42000

 Set minimum or maximum receive rate at 42000bps, respectively

b, c=44000

 Set minimum or maximum receive rate at 44000bps, respectively

b, c=46000

 Set minimum or maximum receive rate at 46000bps, respectively

b, c=48000

 Set minimum or maximum receive rate at 48000bps, respectively

b, c=50000

 Set minimum or maximum receive rate at 50000bps, respectively

b, c=52000

 Set minimum or maximum receive rate at 52000bps, respectively

b, c=54000

 Set minimum or maximum receive rate at 54000bps, respectively

b, c=56000

 Set minimum or maximum receive rate at 56000bps, respectively


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GMI [cmds]
Description: Reports modem product manufacturer information


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GMM [cmds]
Description: Reports modem product model number


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GMR [cmds]
Description: Reports modem version and revision information


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GOI [cmds]
Description: Reports modem global object identifier settings


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GSN [cmds]
Description: Reports modem serial number


REPORT INFORMATION
Type: Immediate
Format: AT [cmds] +GCAP [cmds]
Description: Reports modem's current extended format command set


SELECTIVE REPEAT
Type: Configuration
Format: AT [cmds] +ESR=n [cmds]
Description: Controls use of selective repeat for V.42 mode

Command

Function

n=0

 Disable selective repeat option
Note: Other values for +ESR are not indicated


SYNCHRONOUS ACCESS MODE CONTROL
Type: Configuration
Format: AT [cmds] +ESA=x,y,z,a,b,c,d,e [cmds]
Description: Selects settings for V.8 and V.8bis operation

Command

Function
 

x=0

 Factory configured - do not alter
 

y=6

 Factory configured - do not alter
»

z=0

 Modem transmits abort on underrun of transmit data buffer
 

z=1

 Modem transmits flag on underrun of transmit data buffer; reports underrun and overrun of buffer to DTE
 

a=0

 Factory configured - do not alter
 

b=0

 Disable CRC generation and checking
 

b=1

 Enable 16-bit V.42 CRC generation and checking when in Framed sub-Mode
 

b=2

 Enable 32-bit V.42 CRC generation and checking when in Framed sub-Mode
 

c=0

 Factory configured - do not alter
 

d=255

 Set to hexadecimal octet value FFh, used to perform character-oriented framing
 

e=0

 Factory configured - do not alter


TRANSMIT FLOW CONTROL THRESHOLDS SELECTION
Type: Configuration
Format: AT [cmds] +ITF=x,y,z [cmds]
Description: Controls input buffer size, thresholds for flow control and report rate to the DTE

Command

Function

x=20 to 7000

 Sets the upper threshold at which the modem sends flow off signal

y=10 to 5000

 Sets the lower threshold at which the modem sends flow on signal

z=0

 Factory configured - do not alter
Note: An ERROR will be reported is if the value of x is set below the value of y.


V.8 and V8BIS OPERATION CONTROL
Type: Configuration
Format: AT [cmds] +A8E=x,y,z,a,b,c [cmds]
Description: Selects settings for V.8 and V.8bis operation

Command

Function
»

x=1

 Enable DCE controlled V.8 mode without +A8x indicators, during origination
 

x=6

 Enable DCE controlled V.8 mode with +A8x indicators, during origination
»

y=1

 Enable DCE controlled V.8 mode without +A8x indicators, during answer
 

y=5

 Enable DCE controlled V.8 mode with +A8x indicators, during answer
 

z=0 to 255

 Selects value of the CI signal call function
»

a=0

 Disable V.8bis mode
 

a=1

 Enable DCE controlled V.8bis mode
 

a=2

 Enable DTE controlled V.8bis mode
 

b=<string>

 Not supported
 

c=<string>

 Not supported


V.8 MENU SIGNALS CONTROL
Type: Configuration
Format: AT [cmds] +A8M=n [cmds]
Range: 0-255
Unit: ASCII
Description: Selects the coded string used when sending CM or JM signals in V.8 mode


V.8BIS SIGNAL AND MESSAGE CONTROL
Type: Configuration
Format: AT [cmds] +A8T=x,y,z,a,b,c [cmds]
Description: Selects and controls signals and messages to be sent during V.8bis operation

Command

Function

x=0

 V.8bis signal set to none

x=1

 V.8bis signal set to initiating MRe

x=2

 V.8bis signal set to initiating MRd

x=3

 V.8bis signal set to initiating CRe, low power

x=4

 V.8bis signal set to initiating CRe, high power

x=5

 V.8bis signal set to initiating CRd

x=6

 V.8bis signal set to initiating ESi

x=7

 V.8bis signal set to responding MRd, low power

x=8

 V.8bis signal set to responding MRd, high power

x=9

 V.8bis signal set to responding CRd

x=10

 V.8bis signal set to responding ESr

y=0 to 255

 Selects first V.8bis message coded string

z=0 to 255

 Selects second V.8bis message coded string

a=0

 Enables initiating signals detection

a=1

 Enables responding signals detection

a=2

 Enables initiating and responding signals detection

b=0

 Disable detection of V.8bis messages

b=1

 Search for V.8bis messages enabled

c=0

 Disables any delay between V.8bis messages

c=1

 Enables 1.5 second delay between every V.8bis message


Voice Command Set

ANALOG SOURCE/DESTINANTION SELELCTION
Type: Configuration
Format: AT [cmds] +VLS=n [cmds]
Description: Controls the source and destination of the analog data

Command

Function

n=0

 Modem on hook, phone set connected to line

n=1

 Modem off hook, and connected to line

n=2

 Modem on hook and connected to phone

n=3

 Modem off hook and connected to both line and phone handset

n=4

 Modem on hook and connected to speaker; phone set connected to line

n=5

 Modem and speaker connected to line; modem is off hook

n=6

 Modem on hook and connected to microphone; phone set connected to line

n=7

 Speaker and microphone connected to line via the modem; modem is off hook

n=8

 Modem on hook and connected to PC speaker; phone set connected to line

n=9

 Modem off hook and connected to both line and PC speaker

n=10

 PC speaker and microphone connected to line via the modem; modem is off hook

n=11

 Modem on hook and connected to microphone

n=12

 PC speaker and microphone connected to line via the modem; squelching enabled

n=13

 PC speaker and microphone connected to line via the modem; squelching enabled

n=14

 Modem on hook and connected to both PC speaker and microphone

n=15

 PC speaker and microphone connected to line via the modem; modem is off hook


AUTOMATIC HANG-UP CONTROL
Type: Configuration
Format: AT [cmds] +VNH=n [cmds]
Description: Controls settings for automatic hangups

Command

Function

n=0

 Enables automatic hang-up as normal for other modes

n=1

 Disables automatic hang-up as found in non-voice modes

n=2

 Disables automatic hang-up; enables "logical" hang-up


BEEP TONE TIMER
Type: Configuration
Format: AT [cmds] +VTD=n [cmds]
Range: 1-500
Unit: 0.01 seconds
Description: Controls the duration of DTMF/tone generation


BUFFER THESHOLD REPORT
Type: Immediate
Format: AT [cmds] +VBT=? [cmds]
Description: Reports information about the <deassert> and <assert> parameters
Note: Setting of these values is not supported.


COMPRESSION METHOD SELECTION
Type: Configuration
Format: AT [cmds] +VSM=x,y,z,a [cmds]
Description: Selects voice compression, silence compression and voice sampling rate modes

Command

Function

x=129

 Sets compression method 129

x=130

 Sets compression method 130

y=7200

 Sets range of voice samples per second to 7200

y=8000

 Sets range of voice samples per second to 8000

y=11025

 Sets range of voice samples per second to 11025; concurrent tone detection not supported at this setting

z=127

 Selects sensitivity settings for voice receives to 127

z=128

 Selects sensitivity settings for voice receives to 128

z=129

 Selects sensitivity settings for voice receives to 129

a=0

 Factory configured - do not alter


DISTINCTIVE RING
Type: Configuration
Format: AT [cmds] +VDR=x,y [cmds]
Description: Selects ring cadence mode and timing

Command

Function

x=0

 Disables report of ring cadence information

x=1

 Enables report of ring cadence information as definded by parameter y

y=0

 Modem will report only DROF and DRON. Reports all other call progress event codes as normal

y=0-10

 Modem reports DROF and DRON messages, then produces a ring event y/10 seconds after the end for the ring pulse


DTE/MODEM INTERFACE RATE REPORT
Type: Immediate
Format: AT [cmds] +VPR=? [cmds]
Description: Not supported


MICROPHONE GAIN
Type: Configuration
Format: AT [cmds] +VGM=n [cmds]
Range: 0-255
Unit: Decimal
Description: Controls the gain settings for the microphone


MODEM RECEIVE
Type: Immediate
Format: AT [cmds] +VRXn [cmds]
Description: Selects mode for recording voice reception

Command

Function

+VRX0

 Starts recording voice reception without a periodic tone

+VRX1

 Starts recording voice reception with a periodic tone


MODEM TRANSMIT
Type: Immediate
Format: AT [cmds] +VTX [cmds]
Description: Starts the modem voice transmission process


PLAYBACK VOLUME CONTROL
Type: Configuration
Format: AT [cmds] +VGT=n [cmds]
Range: 120-135
Unit: Decimal
Description: Selects the volume for voice transmission playback


RINGBACK TIMER CONTROL
Type: Configuration
Format: AT [cmds] +VRN=n [cmds]
Range: 0-60
Unit: 0.1 second
Description: Selects the length of time modem will wait after ringback to consider the remote station as off-hook
Note: A value of 0 disables the timer


RINGBACK TIMER CONTROL
Type: Configuration
Format: AT [cmds] +VRA=n [cmds]
Range: 0-600
Unit: 0.1 second
Description: Selects the length of time modem will wait after ringback to consider the remote station as off-hook
Note: A value of 0 disables the timer


SILENCE DETECTION CONTROL
Type: Configuration
Format: AT [cmds] +VSD=x,y [cmds]
Description: Controls time period and silence detection to determine when end of voice receive has occurred

Command

Function

x=0

 Enables +VSM or proprietary silence compression mode

x=127

 Enables less aggressive silence detection mode

x=128

 Enables nominal silence detection mode

x=129

 Enables more agressive silence detection mode

y=1-255

 Select amount of time before modem can report silence detect. Unit: 0.1 seconds


SPEAKER GAIN
Type: Configuration
Format: AT [cmds] +VGS=n [cmds]
Range: 0-255
Unit: Decimal
Description: Controls the gain settings for the speaker


SPEAKERPHONE CONTROL
Type: Configuration
Format: AT [cmds] +VSP=n [cmds]
Description: Controls speakerphone functions

Command

Function

n=0

 Disables speakerphone mode

n=1

 Enables speakerphone mode


SPEAKERPHONE DUPLEX CONTROL
Type: Configuration
Format: AT [cmds] +VDX=n [cmds]
Description: Controls duplex mode for speakerphone

Command

Function

n=0

 Enables half-duplex mode

n=1

 Enables full-duplex mode


TONE CADENCE CONTROL
Type: Configuration
Format: AT [cmds] +VDT=x,y [cmds]
Description: Selects mode for reporting tone cadence

Command

Function

x=0

 Disables report of any tone cadence information

x=1

 Enables report of tone cadence information as definded by parameter y

y=0

 Modem will report only CPOF and CPON. Reports all other call progress event codes as normal

y=0

 Factory configured - do not alter


VOICE GAIN RECEIVE
Type: Configuration
Format: AT [cmds] +VGR=n [cmds]
Range: 0-255
Unit: Decimal
Description: Selects the gain on the received voice signal


VOICE INACTIVITY TIMER
Type: Configuration
Format: AT [cmds] +VIT=n [cmds]
Range: 0-255
Unit: 0.1 second
Description: Selects the period for the inactivity timer
Note: A value of 0 disables the timer.


VOICE INITIALIZE
Type: Configuration
Format: AT [cmds] +VIP [cmds]
Description: Resets all voice command parameters to the default values


VOICE TONES
Type: Configuration
Format: AT [cmds] +VTS=n [cmds]
Description: Controls sending of DTMF tones, single and double frequency tones
Note: This command is not supported.


S(status) Registers

INACTIVITY TIMER
Type: Register
Format AT [cmds] S30=n [cmds]
Range: 0-255
Unit: 0.1 seconds
Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process.
Note: S30=0 disables the timer and allows indefinite inactivity.


NO CARRIER TIME-OUT
Type: Register
Format AT [cmds] S7=n [cmds]
Range: 1-255
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: W dial modifier also uses S7 to set the maximum time to wait.