Multi-Tech Systems MT5600BA-V92 Modem Connection Commands, Command +PCW=n Call Waiting Enable

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Chapter 2 – AT Commands

Modem Connection Commands

Command: +PCW=n

Call Waiting Enable

Values:

n = 0, 1, or 2

Default:

2

 

Description:

Controls the action to be taken upon detection of a call waiting tone in V.92 mode.

 

Values specified by this command are not modified when an AT&F command is issued.

 

+PCW=0

Toggles V.24 Circuit 125 and collects Caller ID if enabled by +VCID.

 

+PCW=1

Hangs up.

 

+PCW=2

Ignores V.92 call waiting.

 

+PCW=? Displays the allowed values.

 

+PCW?

Displays the currrent values.

Command: +PIG=n

PCM Upstream Ignore

Values:

n = 0 or 1

 

Default:

1

 

Description:

Controls the use of PCM upstream during V.92 operation. PCM upstream allows faster

 

upload speeds to a V.92 server.

 

+PIG=0

Disables PCM upstream.

 

+PIG=1

Enables PCM upstream.

 

+PIG=?

Displays the allowed values.

 

+PIG?

Displays the current values.

Command: +PQC=n Quick Connect Control

Values:

n = 0, 1, 2, or 3

Default:

3

 

Description:

Controls the V.92 shortened Phase 1 and Phase 2 startup procedures (Quick Connect).

 

When line conditions are stable, quick connect results in shortened connect times;

 

however, significant fluctuations in line conditions from call to call can result in longer

 

connect times, in which case it may be advisable to disable quick connect.

 

+PQC=0

Enables Short Phase 1 and Short Phase 2 (Quick Connect).

 

+PQC=1

Enables Short Phase 1.

 

+PQC=2

Enables Short Phase 2.

 

+PQC=3

Disables Short Phase 1 and Short Phase 2.

 

+PQC=? Displays the allowed values.

 

+PQC?

Displays the current values.

Command: +PSS

Use Short Sequence

Description:

This command causes a calling modem to force either a V.92 short or full startup

 

sequence as defined by the +PQC command on the next and subsequent connections.

 

Syntax: +PSS=<value>

Values:

<value> Decimal number corresponding to the selected sequence.

 

 

0 The modems decide whether or not to use the short startup procedures.

 

 

The short startup procedures can only be used if enabled by the +PQC

 

 

command. Default

 

 

1 Reserved.

 

 

2 Forces the use of the full startup procedures on the next and subsequent

 

 

connections independent of the setting of the +PQC command.

Result Codes:

OK 0 - 2 in V.92 Mode (+MS=V.92)

 

ERROR Otherwise

Report Commands:

+PSS? Reports selected values.

 

+PSS=? Reports supported range of parameter values.

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

Multi-Tech Systems MT5600BA-V92 is a versatile communication device designed for efficient data transmission over telephone lines. It is highly regarded for its reliability and performance in various applications, including point-of-sale transactions, remote monitoring, and data acquisition. One of the key features of the MT5600BA-V92 is its ability to operate at data rates of up to 56 Kbps. This high-speed modem ensures rapid data transfer, making it suitable for businesses that require quick and efficient communication.

The device supports V.92 technology, which enhances the performance of dial-up connections. V.92 provides features like cheaper call setup times, reduced latency, and improved upload speeds compared to older standards. This makes the MT5600BA-V92 an ideal choice for users who need enhanced data performance without investing in more complex networking infrastructure.

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