Lucent Technologies Host-Based Controller Modem AT specifications AT+VGR=gain

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Host-Based Controller Modem	Data Addendum
AT Command Set	June 15, 1998

AT Voice Commands Reference (continued)

AT+VGR=<gain>

Receive Gain Selection

This command will enable the receive microphone gain control.

✟<gain> is 0¾255: the only useful range is 121—134

✟<gain>=128: nominal level for receive gain from microphone

✟<gain>=<value greater than 128>: increase gain above nominal level

✟<gain>=<value less than 128>: decrease gain below nominal level

TAD mode—This command may be used in TAD local recording to control the recording level from the microphone.

Speakerphone mode—This command may be used to control the gain to the remote caller.

AT+VGR?	Returns current value of receive gain
AT+VGR=?	Returns range of supported gain values
AT+VEM=<mask>	Event Reporting and Masking

The DTE can use this command to disable an event report regardless of the DCE state, or of the analog signal source or destination configuration. Mask is Bits 0—33 (i.e., FFFFFFFFC). See the IS-101 specification for defined bit values.

AT+VEM?	Returns the current values of the mask
AT+VEM=?	Queries the DCE for the range of supported service level events
AT+VIT = <Timer>	DTE/DCE Inactivity Timer

This command sets the DCE’s value for the DTE/DCE inactivity timer. The units are in one seconds.

AT+VIT?	Returns the current value of the timer
AT+VIT=?	Queries the DCE for the range of supported values
AT+VNH = <Hook>	Automatic Hang-up Control

This command causes the DCE to enable or disable automatic hangups in the data and facsimile modes. See the IS-101 specification for the detailed description of this command and its interaction with the +FCLASS and ATH commands.

✟

✟

<hook> = 0 The DCE retains automatic hangups (which is the way in the other non-voice modes).

<hook> = 2 The DCE disables automatic hangups in the other non-voice modes. The DTE only performs a logical hangup (returns the “OK” result code).

AT+VNH?	Returns the current value
AT+VNH=?	Returns the supported values

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Contents

Contents IntroductionAT Command Summary AT Command Set Summary Description#UD AT Testing and Debugging Command Set Summary DescriptionS-Register Summary Default Description Result Code Summary NoEC-No error control protocol AT Commands Reference DnDial Echo CommandOnline Data Character Echo Command Mars Otherwise Hook ControlRequest ID Information Lapm Modulation Handshake Monitor Speaker VolumeMonitor Speaker Mode Return On-line to Data Mode Select Pulse DialingResult Code Control VnDCE Response FormatResult Code Option Result Code Selection and Call Progress MonitoringExt. Result Code Dial Tone Detect Busy Tone Detect Extended Result CodesOK Error Long Space DisconnectRecall Stored Profile Auto RetrainFn Load Factory Settings Dn DTR ControlGn V.22bis Guard Tone Control Auxiliary Relay optionAsynchronous Communications Mode Qn Asynchronous Communications ModeLocal Flow Control Selection Pulse Dial Make-to-Break Ratio SelectionData Set Ready DSR Option Self-Test CommandsConnect Error View Active Configuration and Stored Profile SSEStore Current Configuration YnSelect Stored Profile for Hard ResetZn=x Store Telephone Number \An\Kn Break Control Bits/s Rate Adjusted\Nn Error Control Mode Selection \N3 \Tn Inactivity Timer \Vn Protocol Result Code\Xn XON/XOFF Pass Through Data Calling ToneView Numbers in Blacklist En Enable/Disable Auto-Retrain and Fallback/Fall Forward Cn Data Compression ControlTest and Debug AT Commands Diag AT#UD Last Call Status Report FormatCall Setup Result Codes GstnModulationSchemeActive from 3.7.2/V.58ErrorControl Active from 3.5.2/V.58 Value Description CompressionActive from 3.2.2/V.58 Value DescriptionCallCleared codes from 3.6.4/V.58-1994 Value Description ImplementedDteHangupCommand AT Commands Reference S-Registers S3Command Line Termination Character user definedAuto Answer Ring Number AT Escape Character user definedConnection Completion Time-Out Command Line Editing Character user definedResponse Formatting Character user defined Comma Dial Modifier Time S10S11 S12 Escape Guard TimeS24 Timer to Control Sleep Mode S21 24/General Bit Mapped Options StatusS22 Results Bit Mapped Options Status S28S30 Inactivity Timer S32 Synthetic Ring VolumeS33 Synthetic Ring Frequency S35S42 Auto Rate default 1, range 0 ¾1 S38 K56flex Downstream RateS43 Auto Mode default 1, range 0¾1 S48 Lapm Error Control and Feature Negotiation defaultS48 S48 = S89Command Description AT FAX Command Set Class 1 FAXAT FAX Command Set Summary AT FAX Commands Reference +FRM=m Receive FAX Data with m Carrier Command Option Modulation Speed bits/s+FTM=m Transmit FAX Data with m Carrier +FTH=m Transmit Hdlc Data with m Carrier +FRH=m Receive Hdlc Data with m Carrier FPR +FAA Adaptive answer Manufacturer Identification +FMIResult Lucent Data/Fax Product Identification +FMMAT Voice Command Set AT Voice Command SetVoice Commands AT Voice Command Set Not Defined In IS-101 SpecificationAT Voice Commands Reference AT+VIT = Timer DTE/DCE Inactivity Timer AT+VGR=gainAT+VEM=mask Event Reporting and Masking AT+VNH = Hook Automatic Hang-up ControlAT+VLS=label Analog Source/Destination Selection AT+VTD=durAT+VTS=string Start voice transmission and reception processAT+VSM=? AT+VSD=sds, sdi Silence Detection Quiet and SilenceAT+VSM? AT+VRA=interval Ringback Goes Away Timer AT+VRN=interval Ringback Never Appeared TimerAT+VPR=rate Select DTE/DCE Interface Rate Events Reported to the DTEAT+VTS= DLE H ATDATH AT+VLS=7AT+VLS=5 Example # 2 Initiating a stored number speakerphone call Example # 3 Answering a speakerphone call RingAT+FCLASS=1 ATAExample # 6 Switching from speakerphone mode to TAD mode AT+FCLASS=0Connect AT+VLS=1DLE-R Modem answers call AT Dsvd Commands 25ter AT Commands 25ter AT CommandsManufacturer Identification +GMI? Version / Revision Information +GMR?V8o, v8a, and v8cf +ES=? AT Commands+ES? Idle,,,crctype,nrzien +ESA=?+ITF= off, on +ITF=?AT Commands for Homologation Testing and Debugging Version Country Codes CountryCode in HEX USAAT%T21,par#,paramvalue Pulse dial make time 255 ATA, ATD ATD , ATXATB ATH1Homologation Parameters Par # Parameter Description Range ReferenceVersion 150 255 100 120 255 0x00 0x12 0x10 0x88 0x80 0x06 0x0c 0x6b 0xaa Par. # Australia Belgium Denmark Finland France Germany 120 100 255 0x10 0x12 Par. # Netherlands Italy Norway Spain150 100 250 255 0x12 0x10 0x00 0x88 0x06 0x0c 0x80 Par. # Austria Japan China Korea Malaysia Singapore 150 250 255 Portugal Hong Kong 150 255 Version Par. # Canada Mexico India Vietnam Philippines 000 004 002 050 140 S10 020 S11 095 090 S30 S35 001 000 003 002 004 035 050 S10 020 S11 095 090 S30 S35 001 OK ATZ OK ATS11? 085 OK ATZXX-XXXDMOD