AZTECH LABS, INC.

MDP3858SP-E

Card Type Modem
Chip Set Unidentified
I/O Options Line out (RJ-11), line in (RJ-11), microphone in, speaker out, TAD connector
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Protocol Bell 103/212A
ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, V.34+, V.90, K56Flex
Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression MNP5, MNP10, MNP10EC, V.42, V.42bis
Fax Class Class I
Data Bus 32-bit PCI
Card Size Half-length, full-height


CONNECTIONS

Function

Label

Function

Label
Line out

CN1

 Speaker out

CN4
Line in

CN2

 TAD connector

CN5
Microphone in

CN3

    


USER CONFIGURABLE SETTINGS

Setting

Label

Position
í Low output microphone

JP1/Pins 2 & 3

Closed
High output microphone

JP1/Pins 1 & 2

Closed


SUPPORTED COMMAND SET

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

S Registers
S0, S1, S2, S3, S4, S5, S6, S7, S8, S10, S11, S12, S29

Special Commands
+MR, +ESR


AT COMMAND SET

BLACKLISTED NUMBERS
Type: Immediate
Format: AT [cmds] *B [cmds]
Description: Displays the phone numbers entered into the blacklist.


BREAK HANDLING
Type: Configuration
Format: AT [cmds] +EB=x,y,z [cmds]
Description: Controls the break handling in error controls operations

Command

Function

x

 Decimal number specifying break selection (0=ignore break)

y

 Decimal number specifying if any transmitted V.42 L-SIGNAL will indicate break length (0=L-SIGNAL will not indicate break length)

z

 Decimal number specifying if break is delivered to DTE (0=not delivered)

+EB=?

 Reports the range of values for x,y and z


BREAK HANDLING
Type: Immediate
Format: AT [cmds] +EB? [cmds]
Description: Reports the current values for break handling


CALL TERMINATION BUFFER MANAGEMENT
Type: Immediate
Format: AT [cmds] +ETBM=x,y,z [cmds]
Description: Controls the CTBM settings

Command

Function

x

 Decimal number specifying disposition of buffered transmit data when DTE request disconnection (0=discard data immediately)

y

 Decimal number specifying disposition of buffered receive data when DTE request disconnection (0=discard data immediately)

z

 Decimal number specifying whether attempts are made to deliver buffered data before discarding it (0=do not attempt to deliver data)

+ETBM=?

 Reports the range of values for x,y and z


CALL TERMINATION BUFFER
Type: Immediate
Format: AT [cmds] +ETBM? [cmds]
Description: Reports the current values for the call termination buffer handler


COUNTRY CODE DISPLAY
Type: Configuration
Format: AT [cmds] +GCI [cmds]
Description: Display country codes and configurations supported


DATA CARRIER DETECT (DCD)
Type: Configuration
Format: AT [cmds] &Cn [cmds]
Description: Selects whether the DCD option is enabled or disabled

Command

Function
»

&C0

 RLSD enabled
 

&C1

 RLSD enabled after carrier signal detected


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
»

&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.


DELAYED NUMBERS
Type: Configuration
Format: AT [cmds] *D [cmds]
Description: Displays the numbers that are set to be delayed.

Command

Function

*D0

 Auto-retrain disabled

*D1

 Auto-retrain enabled


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^

 Enables/Disables dialing tone

D;

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

D&

 Wait for credit card tone prior to continuing with dial string.


ERROR CONTROL REPORTING
Type: Immediate
Format: AT [cmds] +ER [cmds]
Description: Reports the current error control settings.

Command

Function

0

 Error control reporting disabled

1

 Error control reporting enabled


ERROR CONTROL SELECTION
Type: Configuration
Format: AT [cmds] +ES=n, m, o, [cmds]
Description: Selects the error control setting

Command

Function

n=1

 Buffered mode

n=2

 Initiate V.42 without detection

n=3

 Initiate V.42 with detection

n=4

 Alternate protocol (MNP)

n=6

 Initiate with V.80 synchronous access mode

m=0

 Error control optional; if error control is not established, maintain DTE-DCE data rate to match line rate and use buffered mode with flow control.

m=1

 Error control optional; if error control is not established, change DTE-DCE data rate to match line rate and use direct mode

m=2

 Error control required; if no LAPM, disconnect

m=3

 LAPM error control required; if no MNP, disconnect

m=4

 MNP error control required; if no MNP, disconnect

o=1

 EC disabled, buffered mode

o=2

 LAPM, MNP, or Normal mode EC optional

o=4

 Error control required; if no EC, disconnect

o=5

 Error control optional; if no EC, disconnect

o=6

 MNP error control required, if no MNP, disconnect

o=8

 V.80 synchronous access mode.


FRAME CHECK
Type: Immediate
Format: AT [cmds] +EFCS [cmds]
Description: Configures the 32-bit frame check sequence.


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 disabled
 

&G2

 1800Hz guard tone enabled


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

Command

Function
 

x=B103

 Bell 103
 

x=B212

 Bell 212
 

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=K56FLEX

 K56flex
 

y=0

 Automode disabled
 

y=1

 Auto-detect highest speed enabled
 

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=32000

 Set minimum or maximum transfer rate at 32000bps, 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.



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


SOFT RESET
Type: Immediate
Format: AT [cmds] Zn [cmds]
Description: Restores modem profiles previously saved in non-volatile RAM using the &W command.


STORE ACTIVE PROFILE
Type: Configuration
Format: AT [cmds] &Wn [cmds]
Description: Writes the values for the active profile into the non-volatile RAM


ROCKWELL AT COMMANDS

DATA COMPRESSION
Type: Configuration
Format: AT [cmds] +DS=x,y,z,a [cmds]
Description: Controls the data compression settings.

Command

Function

x=0

 Direction of data compression negotiated

x=1

 Both directions of data compression enabled
y=0 Do not disconnect if data compression negotiation fails
y=1 Disconnect if data compression negotiation fails
z Decimal number specifying maximum number of dictionary entries
a Decimal number specifying maximum string length
+DS=? Reports ranges of values for x,y,z and a


DATA COMPRESSION REPORT
Type: Immediate
Format: AT [cmds] +DS? [cmds]
Description: Reports current data compression settings


DATA COMPRESSION REPORTING
Type: Configuration
Format: AT [cmds] +DR=x [cmds]
Description: Controls the data compression reporting settings

Command

Function

x=0

 Data compression reporting disabled

x=1

 Data compression reporting enabled
+DR=? Reports ranges of values for x


DATA COMPRESSION REPORTING
Type: Immediate
Format: AT [cmds] +DR? [cmds]
Description: Reports the current data compression settings


DTE/MODEM LOCAL FLOW CONTROL
Type: Immediate
Format: AT [cmds] +IFC=x, y [cmds]
Description: Controls the local flow control operation

Command

Function
 

x=0

 Local flow control disabled
 

x=1

 XON/XOFF on transmitted data
»

x=2

 Ready for receiving
 

x=3

 XON/XOFF on transmitted data being passed through the remote modem
 

y=0

 Local flow control disabled
 

y=1

 XON/XOFF on received data
»

y=2

 CTS/RTS


DTE/MODEM LOCAL RATE REPORTING
Type: Immediate
Format: AT [cmds] +ILRR [cmds]
Description: Reports DTE/Modem local rate parameters.

Command

Function

+ILRR=0

 Local port rate reporting disabled

+ILRR=1

 Local port rate reporting enabled


FLOW CONTROL THRESHOLD
Type: Configuration
Format: AT [cmds] +ITF [cmds]
Description: Control the flow control limits and settings.


GLOBAL OBJECT ID
Type: Configuration
Format: AT [cmds] +GOI [cmds]
Description: Displays the Global Object ID


LINE SIGNAL LEVEL/QUALITY
Type: Immediate
Format: AT [cmds] #UG
Description: Reports the signal level and the quality level.


MANUFACTURER ID
Type: Configuration
Format: AT [cmds] +GMI [cmds]
Description: Displays the manufacturer ID


MODEL ID
Type: Configuration
Format: AT [cmds] +GMM [cmds]
Description: Displays the model ID


REQUEST CAPABILITIES LIST
Type: Configuration
Format: AT [cmds] +GCAP [cmds]
Description: Displays one or more lines of information reporting the V.25ter commands available in the modem


ROM CODE
Type: Configuration
Format: AT [cmds] +GMRn, o, p, q, r [cmds]
Description: Display the ROM code


SERIAL NUMBER ID
Type: Configuration
Format: AT [cmds] +GSN [cmds]
Description: Displays the serial number ID


SYNCHRONOUS ACCESS MODE CONFIGURATION
Type: Configuration
Format: AT [cmds] +ESA=x,y,z,a,b,c,d,e [cmds]
Description: Controls the settings for the Synchronous Access Mode

Command

Function

x

 Decimal number specifying bit sequence sent by modem when buffer overrun occurs while in Transparent sub-Mode

y

 Decimal number specifying bit sequence sent by modem when buffer overrun occurs while in Framed sub-Mode
z=0 Modem transmits abort sequence following underrun in middle of frame while in Framed sub-Mode
z=1 Modem transmits flag sequence following underrun in middle of frame and notified DTE of underrun and overrun while in Framed sub-Mode.
a Reserved
b=0 CRC generation and checking disabled
b=1 16-bit CRC enabled while in Framed sub-Mode
b=2 32-bit CRC enabled while in Framed sub-Mode
c=0 Reserved
d Decimal number specifying the octet value used to perform character-oriented framing
e Reserved
+ESA=? Reports range of values for x,y,z,a,b,c,d and e


SYNCHRONOUS ACCESS MODE REPORTING
Type: Immediate
Format: AT [cmds] +ESA? [cmds]
Description: Reports the current values for synchronous access mode


VIDEO READY MODE
Type: Immediate
Format: AT [cmds] +H [cmds]
Description: Enables/Disables video ready mode

Command

Function

+H=0

 Video ready mode disabled

+H=16

 Video ready mode enabled


V.8 COMMAND SET

ANSWER SIGNAL INDICATION
Type: Immediate
Format: AT [cmds] +A8A
Description: Reports an indication of an answer signal


CALLING TONE INDICATION
Type: Immediate
Format: AT [cmds] +A8C
Description: Reports an indication of either a 1100Hz or a 1300Hz calling tone.


CI SIGNAL INDICATION
Type: Immediate
Format: AT [cmds] +A8I
Description: Reports an indication of a CI signal.


V.8 MENU SIGNALS
Type: Immediate
Format: AT [cmds] +A8M
Description: Using a hexadecimal code string, the modem sends out a V.8 signal.


V.8 NEGOTIATION COMPLETION
Type: Immediate
Format: AT [cmds] +A8J=n
Description: Sends/Receives CJ signal

Command

Function

+A8J=0

 Modem time-out while waiting for CJ signal

+A8J=1

 Either sent or received a CJ signal


V.8 SIGNAL/ MESSAGE REPORT
Type: Immediate
Format: AT [cmds] +A8R
Description: Reports when V.8 signals and messages are received.


V.8 SIGNAL/MESSAGE CONTROLS
Type: Immediate
Format: AT [cmds] +A8T=x,y z,a,b,c [cmds]
Description: Initiates a V.8 transmission signal and detects response messages.

Command

Function

x=0

 V.8bis signal disabled

x=1

 Initiating MRe

x=2

 Initiation MRd

x=3

 Initiating CRe, low power

x=4

 Initiating CRe, high power

x=5

 Initiating CRd

x=6

 Initiating ESi

x=7

 Responding MRd, low power

x=8

 Responding MRd, high power

x=9

 Responding CRd

x=10

 Responding ESr

y

 Hexadecimal string used as the transmitted V.8bis message frame 1

z

 Hexadecimal string used as the transmitted V.8bis message frame 2

a=0

 1.5 second message delay disabled

a=1

 1.5 second message delay enabled
a=2 Detection of V.8bis signals enabled
b=0 Detection of V.8bis signals disabled
b=1 Detection of V.8bis signals enabled
c=0 1.5 second delay between V.8bis signal and message disabled
c=1 1.5 second delay between V.8bis signal and message enabled
+A8T=? Reports the range of values for x,y,z,a,b and c


V.8/V.8BIS OPERATION CONTROLS
Type: Immediate
Format: AT [cmds] +A8E? [cmds]
Description: Reports current values for V.8/V.8bis operation settings


V.8/V.8BIS OPERATION CONTROLS
Type: Immediate
Format: AT [cmds] +A8E=x,y,z,a,b,c [cmds]
Description: Controls the V.8 and the V.8bis operation controls

Command

Function
»

x=1

 DCE-controlled V.8 origination negotiation enabled without A8x indications
 

x=6

 DCE-controlled V.8 origination negotiation enabled with A8x indications
»

y=1

 DCE-controlled V.8 answer negotiation enabled without A8x indications
 

y=5

 DCE-controlled V.8 answer negotiation enabled with A8x indications
 

z

 Hexadecimal value used as V.8 signal call function
»

a=0

 V.8bis negotiation disabled
 

a=1

 DCE-controlled V.8bis negotiation enabled
 

a=2

 DTE-controlled V.8bis negotiation enabled
  b "cfrange" - string of values used when y=5
  c "protrange" - string of values used when y=5


STANDARD AT# VOICE COMMAND SET

CALLER ID
Type: Configuration
Format: AT [cmds] +VCID=n [cmds]
Description: Controls the settings for all of the Caller ID functions.

Command

Function

»

+VCID=0

 Caller ID disabled
 

+VCID=1

 Caller ID enabled


CONTROL TONE CADENCE
Type: Immediate
Format: AT [cmds] +VDT=x,y [cmds]
Description: Controls the cadence of the Control Tone

Command

Function

»

x=0

 Control tone cadence disabled
 

x=1

 Control tone cadence enabled
» y=0 Factory configured - do not alter
  +VDT=? Reports range of values for x,y


CONTROL TONE CADENCE REPORT
Type: Immediate
Format: AT [cmds] +VDT? [cmds]
Description: Reports the cadence of the Control Tone


DID LINE SETTINGS
Type: Configuration
Format: AT [cmds] +VDID=x,y [cmds]
Description: Enables modem to connect through a DID capable telephone line.

Command

Function

x=0

 Factory configured - do not alter

y=0

 Factory contigured - do not alter

+VDID=?

 Reports range of values for x,y


DISPLAY CHIPSET MANUFACTURER
Type: Immediate
Format: AT [cmds] +FMI [cmds]
Description: Displays the chipset manufacturer’s name.


DISPLAY CHIPSET MODEL NAME
Type: Immediate
Format: AT [cmds] +FMM [cmds]
Description: Displays the model name of the modem's chipset.


DISPLAY CHIPSET REVISION
Type: Immediate
Format: AT [cmds] +FMR [cmds]
Description: Displays the revision level of the modem's chipset.


DISTINCTIVE RING
Type: Immediate
Format: AT [cmds] +VDR=x, y [cmds]
Default: 0,0
Description: Reports ring cadence and controls the ring timing.

Command

Function

x=0

 Cadence report disabled

x=1

 Cadence report enabled through alternate ‘+VDR=0’ command

y=0

 Reports ‘DROF’ and ‘DRON’ messages
y=1 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 1/10 second after falling edge of riong pulse
y=2 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 2/10 second after falling edge of riong pulse
y=3 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 3/10 second after falling edge of riong pulse
y=4 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 4/10 second after falling edge of riong pulse
y=5 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 5/10 second after falling edge of riong pulse
y=6 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 6/10 second after falling edge of riong pulse
y=7 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 7/10 second after falling edge of riong pulse
y=8 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 8/10 second after falling edge of riong pulse
y=9 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 9/10 second after falling edge of riong pulse
y=10 Reports ‘DROF’ and ‘DRON’ messages, RING event produced after 1 second after falling edge of riong pulse


DSVD MODE
Type: Configuration
Format: AT [cmds] -SSE=n [cmds]
Description: Select whether the modem will use DSVD mode.

Command

Function
»

-SSE=0

 DSVD mode disabled.
 

-SSE=1

 DSVD mode enabled.


DTE/MODEM INTERFACE RATE
Type: Immediate
Format: AT [cmds] +VPR=n [cmds]
Description: Enables/Disables Autobaud settings.
Range: 0-1
Default: 0


DTMF/TONE GENERATION
Type: Configuration
Format: AT [cmds] +VTD=n [cmds]
Range: 0 - 500
Default: 0
Description: Controls the DTMF/Tone generation default settings.


FLOW CONTROL
Type: Configuration
Format: AT [cmds] +FLO=n [cmds]
Description: Controls the flow control settings

Command

Function

+FLO=0

 Both XON/XOFF and RTS/CTS flow control disabled

+FLO=1

 XON/OFF flow control enabled

+FLO=2

 RTS/CTS flow control enabled


HANG-UP CONTROL
Type: Immediate
Format: AT [cmds] +VNH=n [cmds]
Description: Enables/Disables automatic hang-ups.

Command

Function

+VNH=0

 Auto hang-up enabled when modem is set in normal modes

+VNH=1

 Auto hang-up disabled when modem is set in normal modes

+VNH=2

 Auto hang-up disabled when modem is set in non-voice modes


INITIALIZE ALL VOICE PARAMETERS
Type: Configuration
Format: AT [cmds] +VIPn [cmds]
Description: Initializes all voice parameters to the defaul values

Command

Function

n

 Decimal value corresponding to the selected option

+VIP?

 Reports current values for voice parameters


INITIALIZE VOICE PARAMETERS REPORT
Type: Configuration
Format: AT [cmds] +VIP=? [cmds]
Description: Reports the range of values for voice parameters


MICROPHONE GAIN
Type: Configuration
Format: AT [cmds] +VGM [cmds]
Description: Controls settings for microphone functions.


SEND - DTMF/SINGLE FREQUENCY/DOUBLE FREQUENCY TONES
Type: Immediate
Format: AT [cmds] +VTS [cmds
Description: Sends the DTMF tones, single frequency tones, and dual frequency tones for the duration set with +VBT.


SPEAKER GAIN
Type: Configuration
Format: AT [cmds] +VGS [cmds]
Range: 0-255
Default: 0
Description: Controls settings for speaker functions.


SPEAKERPHONE DUPLEX MODE
Type: Immediate
Format: AT [cmds] +VDX=n [cmds]
Description: Controls the duplex mode

Command

Function

+VDX=0

 Half duplex enabled

+VDX=1

 Full duplex enabled


SPEAKERPHONE SETTINGS
Type: Immediate
Format: AT [cmds] +VSP=n [cmds]
Description: Enables/Disabled speakerphone functionality.

Command

Function
»

+VSP=-0

 Speakerphone disabled
 

+VSP=1

 Speakerphone enabled


VOICE - COMPRESSION METHOD
Type: Configuration
Format: AT [cmds] +VSM=x,y,z,a [cmds]
Description: Controls the compression, silence compression sensitivity, and the voice sampling rate settings.

Command

Function

x

 Decimal value specifying compression method

y

 Value of voice samples per second of the analog signal
z Value of sensitivity values for voice receives
a Value of expansion values for voice transmits
+VSM=? Reports range of supported values for x,y,z and a


VOICE - COMPRESSION METHOD REPORT
Type: Configuration
Format: AT [cmds] +VSM? [cmds]
Description: Reports the current compression, silence compression sensitivity, and the voice sampling rate settings.


VOICE BUFFER SPACE
Type: Configuration
Format: AT [cmds] +VBT [cmds]
Description: Sets the amount of data the modem can send into the buffer after the XOFF signal is sent.


VOICE DEVICE
Type: Configuration
Format: AT [cmds] +VLS=n [cmds]
Description: Selects the I/O device for the DSP chip.
Note: This modem may not support all options listed below. The #VLS? Command will display the available options.

Command

Function

+VLS=0

 Phone connected to line; Modem on-hook

+VLS=1

 Modem connected to line

+VLS=2

 Modem connected to handset

+VLS=3

 Modem connected to both the line and the handset

+VLS=4

 Modem connected to the speaker

+VLS=5

 Modem connected to both the line and the speaker

+VLS=6

 Modem connected to the microphone

+VLS=7

 Route speaker and microphone to line via the modem

+VLS=8

 Modem connected to the speaker

+VLS=9

 Modem connected to both the line and the speaker

+VLS=10

 Route speaker and microphone to line via the modem

+VLS=11

 Modem connected to the microphone

+VLS=12

 Route speaker and microphone to line via the modem

+VLS=13

 Route speaker and microphone to line via the modem

+VLS=14

 Modem connected to headset

+VLS=15

 Route speaker and microphone to line via the modem

+VLS=16

 Mute microphone

+VLS=17

 Microphone disabled

+VLS=18

 Mute speaker

+VLS=19

 Speaker disabled


VOICE INACTIVITY TIMER
Type: Immediate
Format: AT [cmds] +VIT [cmds]
Range: 0-255
Default: 0
Description: Controls the settings for the DTE/modem inactivity timer.


VOICE MODE SELECTION
Type: Immediate
Format: AT [cmds] +FCLASS=n [cmds]
Description: Selects which mode the modem will operate in.

Command

Function

+FCLASS=8

 Modem will operate in Voice mode

+FCLASS=80

 Modem will operate in VoiceView mode


VOICE RECEIVE
Type: Immediate
Format: AT [cmds] +VRX=n [cmds]
Description: Commands the modem to begin receiving voice data.

Command

Function

+VRX=-0

 Voice reception enabled; Tone production disabled

+VRX=1

 Voice reception enabled; Tone production enabled


VOICE RECORD VOLUME LEVEL
Type: Configuration
Format: AT [cmds] #VGR=n [cmds]
Description: Sets the volume level when playing back audio signals.


VOICE RING DETECT TIME
Type: Configuration
Format: AT [cmds] +VRN=n [cmds]
Default: 10
Range: 0-60
Unit: 1 second
Description: Sets the maximum time the modem will wait for the remote station to ring before it assumes that it went off-hook before it rang.

Command

Function

»

+VRN=0

 Turns off the ringback never came timer. After dialing the modem sends VCON and immediately enters online voice command control


VOICE RINGBACK GOES AWAY TIMER
Type: Configuration
Format: AT [cmds] +VRA=n [cmds]
Default: 50
Unit: 10 ms
Description: Sets the maximum time the modem will wait for the remote station to ring again before it assumes that it has gone off-hook.


VOICE SILENCE DETECTION THRESHOLD
Type: Configuration
Format: AT [cmds] +VSD=n [cmds]
Description: Sets the threshold of sensitivity that the modem uses to determine silence detection.

Command

Function

#VSS=0

 Silence detection enabled.

#VSS=127

 Minimum silence detection sensitivity.

#VSS=128

 Standard silence detection sensitivity.

#VSS=129

 Maximum silence detection sensitivity.


VOICE TRANSMISSION LEVEL
Type: Configuration
Format: AT [cmds] +VGT=n [cmds]
Range: 0-255
Default: 0
Description: Sets the transmission level for sending audio in voice mode.


VOICE TRANSMIT
Type: Immediate
Format: AT [cmds] #VTX
Range: 0-255
Default: 0
Description: Commands the modem to begin transmitting voice data.