Settings Key

The Settings key contains commands for configuring various modem settings. After the Init key commands are sent, Windows 95 builds a dynamic configuration command string by concatenating various entries shown in the following table. The command string depends on the settings selected in the modem's properties.

Subkey

Description

Example

Prefix

Configuration command prefix

AT

Terminator

Configuration command suffix

<cr>

DialPrefix

Dial command prefix

D

Dial_Pulse

Use pulse dialing

P

Dial_Tone

Use tone dialing

T

Blind_Off

Detect dial tone before dialing

X4

Blind_On

Do not detect dial tone before dialing

X3

CallSetupFailTimeout

Specify call setup time-out

S7=<#>

InactivityTimeout

Specify inactivity time-out

S30=<#>

SpeakerVolume_Low

Low speaker volume

L1

SpeakerVolume_Med

Medium speaker volume

L2

SpeakerVolume_High

High speaker volume

L3

SpeakerMode_Off

Speaker always off

M0

SpeakerMode_Dial

Speaker on during dial and negotiation

M1

SpeakerMode_On

Speaker always on

M2

SpeakerMode_Setup

Speaker on only during negotiation

M3

FlowControl_Off

No flow control

&K0

FlowControl_Hard

Hardware flow control

&K1

FlowControl_Soft

Software flow control

&K2

ErrorControl_Off

Error control disabled (normal mode, not direct)

+Q6S36=3S48=128

ErrorControl_On

Error control enabled (auto reliable)

+Q5S36=7S48=7

ErrorControl_Forced

Error control required to connect (reliable)

+Q5S36=4S48=7

ErrorControl_Cellular

Cellular protocol enabled

\N3-K1)M1-Q1*H1

Compression_On

Compression enabled

S46=138

Compression_Off

Compression disabled

S46=136

Modulation_CCITT

Use CCITT modulations for 300 and 1200 bps

B0

Modulation_Bell

Use Bell modulations for 300 and 1200 bps

B1

SpeedNegotiation_Off

Connect only at default modem speed; do not fall back

N0

SpeedNegotiation_On

Use lower DCE speed to connect, if necessary

N1