Comtrol AT Commands for SmartACFL Manual do Utilizador descarregar pdf (Página 24)

Command Reference Manual

3-4

Conexant

100722A

3.2.1.6 -SMS= - Select Mode

Selects Data mode, DSVD (digital simultaneous voice and data) mode, or enables automatic mode selection.

Syntax

-SMS<mode>

Defined Values

<mode> Decimal number corresponding to the selected mode or automatic mode select enable.

0 Data mode. (Default.)

1 DSVD mode (a modem not supporting DSVD will respond with ERROR).

2 Reserved (will respond with ERROR).

3 Automatic modem select (DSVD mode/Data mode).

Notes

DSVD is a technology that allows simultaneous voice and data operation using a Conexant modem connected to a telephone

line. Voice and data channels are combined in the digital domain for DSVD.

Establishing a DSVD connection is analogous to establishing a regular data modem connection. Initiate the call using normal

dialing (ATD) and answering (ATA) procedures. The modem can switch from a regular phone conversation into DSVD mode

and back to phone conversation. A handset, headset, or microphone/speaker can be used for voice communication during

DSVD mode.

DSVD requires a V.34 mode or faster connection.

Reporting Selected Options

The modem reports the selected options in response to the following command:

-SMS?

The response is:

<mode>

Example:

-SMS?

Reporting Supported Options

The modem reports the supported options in response to the following command:

-SMS=?

The response is:

(list of<mode> values)

Example:

-SMS=?

(0 or 1)

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