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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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DISPLAY INFORMATION
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Type:
| Immediate
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Format:
| AT [cmds] In [cmds]
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Description:
| Displays information requested about the modem.
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Command
| Function
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I0
| Displays product identification code.
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I1
| Displays ROM checksum.
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I2
| Tests and displays ROM checksum result.
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I3
| Displays firmware revision, model, and interface.
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I4
| Displays product name.
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I5
| Displays country code.
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I6
| Displays data pump model and revision.
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DISTINCTIVE RING
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Format:
| AT [cmds] -SDR=n [cmds]
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Default:
| Unidentified
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Range:
| 0 - 7
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Description:
| Selects which distinctive ring signals the modem will respond to.
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Bit
| Value
| Function
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0
| 0
| Do not respond to distinctive ring type 1.
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1
| Respond to distinctive ring type 1.
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1
| 0
| Do not respond to distinctive ring type 2.
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1
| Respond to distinctive ring type 2.
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2
| 0
| Do not respond to distinctive ring type 3.
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1
| Respond to distinctive ring type 3.
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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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RPI CONFIGURATION
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Type:
| Configuration
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Format:
| AT [cmds] +Hn [cmds]
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Description:
| Configures the Rockwell Protocol Interface.
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Command
| Function
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+H0
| RPI disabled.
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+H1
| RPI enabled and local serial port speed set to 19.2Kbps.
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+H2
| RPI enabled and local serial port speed set to 38.4Kbps.
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+H3
| RPI enabled and local serial port speed set to 57.6Kbps.
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+H11
| RPI+ enabled.
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SPEAKERPHONE OPTIONS
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Type:
| Configuration
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Format:
| AT [cmds] #SPK=x,y,z [cmds]
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Description:
| Sets various options for speakerphone functions.
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Command
| Function
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x=0
| Microphone enabled.
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x=1
| Microphone disabled.
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x=2
| Microphone enabled with maximum gain, speaker disabled.
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y
| Default:
| 5
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Range:
| 0-16
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Unit:
| -2 dBm
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Description:
| Sets the attenuation level for speaker output in voice mode. A value of 16 will mute the speaker.
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z=0
| Microphone gain set to 0 dBm.
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z=1
| Microphone gain set to 6 dBm.
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z=2
| Microphone gain set to 9.5 dBm.
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z=3
| Microphone gain set to 12 dBm.
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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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