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Chapter 16 – Audio Commands

Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 260

Chapter 16 – Audio Commands

The AT Commands described in this chapter are related to the audio interface.

16.1 Audio Programming Model

The following figure illustrates how the signal path can be adjusted with the parameters <inCalibrate>, <inBbcGain>,

<outBbcGain>, <outCalibrate> and <sideTone>, as well as <io>, <mic> and <ep>.

Figure 16.1: Audio programming model

16.2 ATL Set Monitor Speaker Loudness

Description: ATL is implemented for V.250ter compatibility reasons only and has no effect.

Syntax: Exec Command: ATL[<val>]

Response: OK

Parameter: <val>

Notes:

• This command is not PIN protected.

• This command is supported in airplane mode.

16.3 ATM Set Monitor Speaker Mode

Description: ATL is implemented for V.250ter compatibility reasons only and has no effect.

Syntax: Exec Command: ATM[<val>]

Response: OK

Parameter: <val>

Notes:

• This command is not PIN protected.

• This command is supported in airplane mode.

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