4 AT Commands, S-Registers, and Result Codes

 

I5

Display the board ID: software version, hardware version, and

 

 

country ID

 

I9

Display the country code (e.g., NA Ver. 1).

 

I11 Display diagnostic information for the last modem connection,

 

 

such as DSP and firmware version, link type, line speed, serial

 

 

speed, type of error correction/data compression, number of

 

 

past retrains, etc.

Command:

Ln

Monitor Speaker Volume

Values:

 

n = 0, 1, 2, or 3

Default:

 

2

Description:

L0

Select low volume.

 

L1

Select low volume.

 

L2

Select medium volume.

 

L3

Select high volume.

Command:

Mn

Monitor Speaker Mode

Values:

 

n = 0, 1, 2, or 3

Default:

 

1

Description:

M0

Speaker always off.

 

M1

Speaker on until carrier signal detected.

 

M2

Speaker always on when modem is off-hook.

 

M3

Speaker on until carrier is detected, except while dialing.

Command:

Nn

Modulation Handshake

Values:

 

n = 0 or 1

Default:

 

1

Description:

N0 Modem performs handshake only at communication standard

 

 

specified by S37 and the B command.

 

N1

Modem begins handshake at communication standard speci-

 

 

fied by S37 and the B command. During handshake, fallback to

 

 

a lower speed can occur.

Command:

On

Return Online to Data Mode

Values:

 

0, 1, 3

Default:

 

None

Description:

O0 Exit online command mode and return to data mode (see

 

 

+++AT<CR> escape sequence ).

 

O1

Issue a retrain and return to online data mode.

 

O3

Issue a rate renegotiation and return to data mode.

Command:

P

Pulse Dialing

Values:

 

P, T

Default:

 

T

Description:

 

Configures the modem for pulse (non-touch-tone) dialing.

 

 

Dialed digits are pulsed until a T command or dial modifier is

 

 

received.

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Multi-Tech Systems MT5634MSV manual Monitor Speaker Volume, Monitor Speaker Mode, Modulation Handshake, Pulse Dialing