Chapter 3 – Voice Commands

Command: +VTD

Beep Tone Duration Timer

Description:

This is a V.90 command. This command causes the modem to set the default DTMF/tone

 

generation duration. Syntax: +VTD=<dur>

Values:

<dur>

Decimal number specifying the default DTMF/tone generation duration in

 

 

units of 0.01 second.

 

 

A value of 0 specifies the value entered by the S11 parameter (50-255 ms).

Default:

100 ms

The range is 0.01 to 2.55 seconds for <dur> = 1 to 255.

 

 

Report Commands:

+VTD?

Reports current of selected values.

 

+VTD=?

Reports supported range of parameter values.

Command: +VDR

Distinctive Ring

 

Note:

This command does not require the Voice Configuration commands to be set

 

before using it.

 

Description:

This command causes the modem to enable or disable reporting of the ring cadence

 

information and to control the timing of the RING event code report if ring cadence

 

reporting is enabled.

 

 

Syntax: +VDR=<enable>, <report>

Values:

<enable>

Decimal number corresponding to the selected option.

 

 

0 The modem will not report ring cadence information.

 

 

1 The modem will report ring cadence information as specified for the

 

 

<report> subparameter.

 

<report>

Decimal number specifying ring cadence information report when enabled by

 

 

the <enable> subparameter.

 

 

0

The modem will produce only DROF and DRON messages. The

 

 

 

modem will not produce any RING event codes. The modem will

 

 

 

report other call progress event codes as normal.

 

 

Other

The modem will produce only DROF and DRON messages. The

 

 

 

modem will produce a RING event code after <report>/10 seconds

Defaults:

0,0

 

after the falling edge of the ring pulse (i.e., after the DRON report).

 

 

Report Commands:

+VDR?

Reports current of selected values.

 

+VDR=?

Reports supported range of parameter values.

Command: +VDT

Control Tone Cadence Reporting

Description:

This command is included for compatibility only and has no effect other than returning a

 

result code.

 

 

 

This command allows the modem to enable or disable reporting of the control tone

 

cadence information in the frequency band used by the Ringback/Remote Ring, BUSY,

 

and reorder/Fast Busy tones (usually in the 300 to 600 Hz range).

 

Syntax: +VDT=<enable>,<report>

Values:

<enable>

Decimal number corresponding to the selected option.

 

 

0 The modem will not produce any control tone cadence report.

 

<report>

Decimal number specifying the produced any control tone cadence report

 

 

when enabled by the <enable> subparameter.

 

 

0

The modem will produce only CPOF and CPON messages.

Defaults:

0,0

Other

Reserved

 

 

Report Commands:

+VDT?

Reports current of selected values.

 

+VDT=?

Reports supported range of parameter values.

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

35

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Multi-Tech Systems MT5600BA-V92 manual Command +VTD Beep Tone Duration Timer, Command +VDR Distinctive Ring
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MT5600BA-V92 specifications

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