Multi-Tech Systems MT5600BA-V92 manual Command +VNH= Automatic Hang-up Control

Page 29

 

 

 

 

 

 

 

 

Chapter 3 – Voice Commands

Command: +VNH=

Automatic Hang-up Control

 

 

 

 

 

Description:

This command enables or disables automatic hang ups.

 

 

 

 

Syntax: +VNH=<hook>

 

 

 

 

 

Values:

<hook> Decimal number corresponding to the selected option.

 

 

 

0

 

Modem enables automatic hang ups as is normal in other modes.

 

 

1

 

Modem disables automatic hang ups usually found in the other non-

 

 

 

 

voice modes.

 

 

 

 

 

 

 

2

 

The modem disables automatic hang ups in the other non-voice modes.

Default:

0

 

 

The modem performs a “logical” hang up (returns OK result code).

 

 

 

 

 

 

 

 

 

Report Commands:

+VNH?

Reports current or selected values.

 

 

 

Command Responses:

+VNH=?

Reports supported range of parameter values.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Automatice Hang-up Command Responses

 

Command

 

No Carrier Present

 

ATH

 

ATZ

 

DTR & D2

 

+VNH=0

 

 

Y

 

Y

 

Y

 

Y

 

+VNH=1

 

 

N

 

Y

 

Y

 

Y

 

+VNH=2

 

 

N

 

N

 

N

 

Y

 

Notes:

 

 

 

 

 

 

 

 

 

 

Y = will hang up; N = will not hang up

 

 

 

 

 

 

How +VNH is reset:

 

 

 

 

 

 

DTE uses +VNH command to change the setting.

 

 

 

 

DTE issues another +FCLASS mode change without issuing another +VNH.

 

A hang-up event occurs (see this table).

 

 

 

 

 

 

DTE issues +VIP command.

 

 

 

 

 

Command: +FLO

Flow Control

 

 

 

 

 

Function:

Select Flow Control Method

 

 

 

 

 

Values:

0, 1, 2, 3-255

 

 

 

 

 

 

 

 

Result Codes:

OK or ERROR

 

 

 

 

 

 

 

 

Description:

The +FLO? command lets you select the method of flow control provided and used by the

 

modem. If +FLO=0, some other method (such as credit flow control) is used. The Xon-Xoff

 

method is required. Xon is the ASCII character <DC1> (11 hex). Xoff is the ASCII

 

character >DC3> (13 hex). CCITT V.24 circuits 106 and 133 are optional flow control

 

methods. If circuits 106 and 133 are not used (+FLO<>2), then circuit 106 is held On

 

whenever +FCLASS=8.

 

 

 

 

 

 

In Voice mode, circuit 105 has no effect on the state of transmitted data. (Circuit 133

 

normally reverts to use as circuit 105 (RTS) when not used for Flow Control.)

 

 

+FLO=0

 

Disables Xon-Xoff and 133/105 flow control

 

 

 

 

+FLO=1

 

Enables Xon-Xoff flow control in either direction

 

 

+FLO=2

 

Enables CCITT Circuit 133 for flow control of the modem by the PC; use

 

 

 

CCITT Circuit 106 for flow control of the PC by the modem.

 

+FLO=3-255 Reserved for future standards.

Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G)

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Contents MultiModem→ Copyright WarrantyRecord of Revisions TrademarksTable of Contents Introduction You must press Enter to send the command to the modemGeneral Commands AT CommandsCommand En Echo Command Mode Characters Command DS=n Dial Stored Telephone NumberCommand Hook Control Command Information RequestCommand ? Read Register Value Command Result Codes Enable/DisableCommand Tone Dialing Command Result Code FormatCommand Modem Reset Command Long Space DisconnectCommand Data Carrier Detect DCD Control Command Dn Data Terminal Ready DTR ControlCommand V.42bis Data Compression Command Modem-Initiated Flow ControlCommand Load Factory Settings Command V.22bis Guard Tone ControlCommand Sync/Async Mode Command Make/Break Dial RatioCommand Clear to Send CTS Control Command Data Set Ready DSR ControlCommand &Xn Synchronous Clock Source Command Store Current ConfigurationCommand Select Profile for Hard Reset Command &Zn=x Store Telephone NumberCommand Line Signal Level Command %En Line Quality MonitorCommand Line Signal Quality Command PCM Code SelectionCommand \Nn Error Correction Mode Selection Command \Kn Break ControlCommand \Vn Single Line Connect Message Report CommandsCommand +MS= Modulation Selection Country/Region of InstallationValues & Default SubparametersCommand Flash Memory Download Command MNP Extended ServicesCommand View Numbers in Blacklist Command View Delayed NumbersCommand *E Escape Remote Configuration Escape CommandsCommand +++ Escape Sequence Command +PCW=n Call Waiting Enable Modem Connection CommandsCommand +PIG=n PCM Upstream Ignore Command +PQC=n Quick Connect ControlResult Code Force Full Startup Procedure Next ConnectionEnable Quick Connect Profile Save Callback Security Commands Caller ID CommandsCommand +DR Data Compression Reporting Data Compression CommandsCommand +DS Data Compression Command +DS44 V.44 Compression SelectCommand +EB Break Handling in Error Control Operation Error Control CommandsCommand +EFCS Bit Frame Check Sequence Command +ER Error Control Reporting+ESR? Command +ESR Selective RejectCommand +ETBM Call Termination Buffer Management Command +IFC DTE-Modem Local Flow Control DTE CommandsCommand +ILRR DTE-Modem Local Rate Reporting Reported RateCommand +IPR Fixed DTE Rate Modulation CommandCommand +MR Modulation Reporting Control +MCR Report SyntaxCommand -STE= Set Telephony Extension Call Control CommandBehavior in Data Mode +FCLASS=0 Behavior in Voice Mode +FCLASS=8Examples No Carrier ATS86? Test CommandCommand &T n Test Command Voice Commands Overview Voice CommandsConfiguration Commands Command +FCLASS=8 Select Voice ModeCommand +FLO Flow Control Command +VNH= Automatic Hang-up ControlCommand +VIP Voice Initialize All Parameters Voice CommandsCommand +VRX Start Modem Receive Record Command +VTS Send Voice TonesCommand +VGR Voice Gain Receive Record Gain Command +VTX Start Modem Transmit PlaybackCommand +VGT Voice Gain Transmit Playback Volume +VTS Examples+VLS Example Command +VIT Voice Inactivity Timer DTE/ModemCommand +VLS Analog Source/Destination Selection Table of +VLS Command Options Label Primitives Description Command +VRA Ringback Goes Away Timer+VSP=1 IntervalCommand +VSM Compression Method Selection Command +VRN Ringback Never Appeared TimerCommand +VSD Silence Detection Quiet and Silence Command +VDR Distinctive Ring Command +VTD Beep Tone Duration TimerCommand +VDT Control Tone Cadence Reporting Before using it Description+VPR? RateCommand +VSP Speakerphone ON/OFF Speakerphone CommandsCommand +VGM Microphone Gain Command +VGS Speaker GainShielded Hex Event Report Description Code Voice Mode Shielded CodesUnformatted Form Reporting Caller ID Event Number 4 Extended Keypad Dtmf a Command +A8E V.8bis Operation Controls V.8bis CommandsCommand +A8I CI Signal Indication Default Values25bis Commands List Request of Forbidden Number 25bis ResponsesList Identification Number List Request of Stored NumberRegisters Reg Unit Range Default DescriptionRegisters Registers +MR, +ER,+DR, and W commands Result Codes Data FAX+DR None +DR ALT+ER None +ER LapmTerse Verbose Description Terse Verbose Description Example Setting Country/Regional CodesIndex Qcpc 46, 47, 48, 49 Index
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MT5600BA-V92 specifications

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