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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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MNP10EC MODE
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Type:
| Configuration
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Format:
| AT [cmds] -SEC=n [cmds]
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Description:
| Selects whether the modem will attempt to use MNP10EC mode during the handshaking sequence.
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Command
| Function
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-SEC=0
| MNP10EC handshaking disabled unless a V.34 connection is attempted via a cellular line.
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-SEC=1 | MNP10EC handshaking enabled.
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MODE SELECTION
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Type:
| Immediate
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Format:
| AT [cmds] #CLS=n [cmds]
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Description:
| Selects which mode the modem will operate in.
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Command
| Function
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#CLS=0
| Modem will operate in data mode.
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#CLS=1
| Modem will operate in fax class 1 mode.
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#CLS=8
| Modem will operate in voice mode.
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TONE DETECTION
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Format:
| AT [cmds] #VTD=x,y,z [cmds]
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Default:
| x,y,z 63
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Range:
| 0 - 63
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Description:
| Sets which tones the tone detection will report.
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Note:
| The value of x sets the tone detection modes in voice transmit mode, y sets them in voice receive mode, and z sets them in voice command mode.
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Bit
| Value
| Function
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0
| 0
| DTMF tones are not detected.
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1 | DTMF tones are detected.
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1
| 0
| V.25 1300Hz calling tone is not detected.
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1 | V.25 1300Hz calling tone is detected.
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2
| 0
| T.30 1100Hz fax tone is not detected.
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1 | T.30 1100Hz fax tone is detected.
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3
| 0
| V.25/T.30 2100Hz answer tone is not detected.
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1 | V.25/T.30 2100Hz answer tone is detected.
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4
| 0
| Bell 2225Hz answer tone is not detected.
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1 | Bell 2225Hz answer tone is detected.
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5
| 0
| Call progress tones are not detected.
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1 | Call progress tones are detected.
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TONE GENERATOR-DIRECT ENTRY
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Type:
| Immediate
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Format:
| AT [cmds] #VTS=[m, n, x]
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Range:
| m 200-3000, n 200-3000, x 0-255
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Unit:
| m 1 Hz, n 1 Hz, x .1 second
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Description:
| Generates a dual-frequency tone for duration x at frequencies m and n.
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TONE GENERATOR-TIMED PHONE KEYS
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Type:
| Immediate
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Format:
| AT [cmds] #VTS={a, n}
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Range:
| a 0-9, A-D, #, *; x 0-255
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Unit:
| x .1 second
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Description:
| Generates the DTMF tone for duration x for the character a.
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TONE GENERATOR-PHONE KEYS
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Type:
| Immediate
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Format:
| AT [cmds] #VTS=a
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Range:
| 0-9, A-D, #, *
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Description:
| Generates the DTMF tones for the characters in the string for the duration set with +VBT.
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TONE GENERATOR LENGTH
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Format
| AT [cmds] #VBT=n [cmds]
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Default:
| 10
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Range:
| 0 - 40
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Unit:
| 0.1 second
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Description:
| Sets the length of DTMF tones that are generated.
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VOICE BUFFER SPACE
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Type:
| Configuration
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Format:
| AT [cmds] #VSK=n [cmds]
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Default:
| 255
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Range:
| 0 - 255
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Unit:
| 1 byte
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Description:
| Sets the amount of data the modem can send into the buffer after the XOFF signal is sent.
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VOICE DEVICE
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Type:
| Configuration
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Format:
| AT [cmds] #VLS=n [cmds]
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Description:
| Selects the I/O device for the DSP chip.
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Note:
| This modem may not support all options listed below. The #VLS? command will display the available options.
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Command
| Function
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#VLS=0 | Telephone line and handset used for voice I/O.
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#VLS=1
| Telephone handset used for voice I/O.
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#VLS=2
| Internal speaker only used for voice I/O.
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#VLS=3
| External microphone only used for voice I/O.
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#VLS=4
| Telephone line and handset used for voice I/O; internal speaker enabled.
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#VLS=5
| Headset used for voice I/O.
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#VLS=6
| Speakerphone used for voice I/O.
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#VLS=7
| Handset muted by disconnecting handset or speakerphone from telephone line.
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#VLS=8
| Connects caller ID relay for recording of conversation over handset.
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#VLS=9
| Connects handset (or speakerphone) to DSP chip for recording or playback.
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VOICE-DISPLAY BUFFER SIZE
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Type:
| Immediate
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Format:
| AT [cmds] #VBQ? [cmds]
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Description:
| Displays the size of the voice buffer.
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