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Micro House PC Hardware Library Volume II: Network Interface Cards And Modems
by Micro House International, Inc. and Scott Mueller
Que, Macmillan Computer Publishing
ISBN: 078971664x Pub Date: 06/17/98
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VOICE SAMPLING RATE
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Type:
| Configuration
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Format:
| AT [cmds] #VSR=n [cmds]
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Description:
| Sets the sampling rate used when recording voice signals.
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Command
| Function
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#VSR=7200 | Selects a sampling rate of 7.2KHz.
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#VSR=8000
| Selects a sampling rate of 8KHz.
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#VSR=11025
| Selects a sampling rate of 11.025KHz in PCM encoding only.
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VOICE SILENCE DETECTION TIME
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Type:
| Configuration
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Format:
| AT [cmds] #VSP=n [cmds]
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Default:
| Unidentified
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Range:
| 0 - 255
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Unit:
| .1 second
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Description:
| Sets the minimum amount of silence that the modem will detect.
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VOICE SILENCE DETECTION THRESHOLD
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Type:
| Configuration
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Format:
| AT [cmds] #VSS=n [cmds]
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Description:
| Sets the threshold of sensitivity that the modem uses to determine silence detection.
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Command
| Function
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#VSS=0
| Silence detection disabled.
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#VSS=1
| Minimum silence detection sensitivity.
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#VSS=2
| Standard silence detection sensitivity.
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#VSS=3
| Maximum silence detection sensitivity.
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VOICE TIMING MARK
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Type:
| Configuration
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Format:
| AT [cmds] #VTM=n [cmds]
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Description:
| Configures timing mark placement.
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Command
| Function
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#VTM=0
| Timing marks disabled.
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#VTM=1
| Timing marks enabled.
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VOICE TRANSMISSION LEVEL
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Type:
| Configuration
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Format:
| AT [cmds] #TL=hhhh [cmds]
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Default:
| 3FFF
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Range:
| 0000 - 7FFF
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Unit:
| Unidentified (hexadecimal)
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Description:
| Sets the transmission level for sending audio in voice mode.
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VOICE TRANSMIT
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Type:
| Immediate
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Format:
| AT [cmds] #VTX
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Description:
| Commands the modem to begin transmitting voice data.
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VOICE VOLUME LEVEL
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Type:
| Configuration
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Format:
| AT [cmds] #VGT=n [cmds]
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Description:
| Sets the volume level when playing back audio signals.
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Command
| Function
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#VGT=128
| Low volume setting.
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#VGT=129 | Medium volume setting.
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#VGT=130
| High volume setting.
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#VGT=131
| Highest volume setting.
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MULTI-TECH SYSTEMS, INC.
MT5634ZDXV
Card Type
| Modem (asynchronous)
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Chipset
| Unidentified
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I/O Options
| Voice, speakerphone
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Maximum Data Rate
| 56Kbps
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Maximum Fax Rate
| 14.4Kbps
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Data Modulation
| Bell 103J, 113, 212A
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| ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34
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| AT&T V.32terbo
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| Rockwell K56flex
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Fax Modulation
| ITU-T V.17, V.27ter, V.29
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Error Correction/Compression
| MNP5, V.42, V.42bis
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Fax Class
| Class I & II
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Data Bus
| Serial
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CONNECTIONS
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Function
| Label
| Function
| Label
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Telephone line out
| CN1
| Serial port
| CN3
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Telephone line in
| CN2
| DC power in
| CN4
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DIAGNOSTIC LED(S)
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LED
| Color
| Status
| Condition
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TD
| Unidentified
| On
| Modem is transmitting data
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TD
| Unidentified
| Off
| Modem is not transmitting data
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RD
| Unidentified
| On
| Modem is receiving data
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RD
| Unidentified
| Off
| Modem is not receiving data
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CD
| Unidentified
| On
| Carrier signal detected
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CD
| Unidentified
| Off
| Carrier signal not detected
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56
| Unidentified
| On
| Modem connected with the K56flex protocol
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56
| Unidentified
| Off
| Modem not connected with the K56flex protocol
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28
| Unidentified
| On
| Modem connected with the V.34 protocol
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28
| Unidentified
| Off
| Modem not connected with the V.34 protocol
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14
| Unidentified
| On
| Modem connected with the V.32bis protocol
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14
| Unidentified
| Off
| Modem not connected with the V.32bis protocol
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OH
| Unidentified
| On
| Modem is off-hook
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OH
| Unidentified
| Off
| Modem is on-hook
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TR
| Unidentified
| On
| DTR signal is high
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TR
| Unidentified
| Off
| DTR signal is low
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EC
| Unidentified
| On
| Error correction enabled
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EC
| Unidentified
| Blinking
| Error correction activated
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EC
| Unidentified
| Off
| Error correction disabled
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FX
| Unidentified
| On
| Modem is connected in FAX mode
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FX
| Unidentified
| Off
| Modem is not connected in FAX mode
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