Chapter 4 - V.22bis Commands

Summary of S-Parameter Defaults

Register

Function

Range/Units

Default*

S0

Rings to Auto-Answer

0-255

rings

0

S1

Ring Counter

0-255

rings

0

S2

Escape Character

0-255

ASCII

43

S3

Carriage Return Character

0-127

ASCII

13

S4

Line Feed Character

0-127

ASCII

10

S5

Backspace Character

0-255

ASCII

8

S6

Wait Time before Blind Dialing or for Dial Tone

2-255

s

2

S7

Wait Time for Carrier, Silence, or Dial Tone

1-255

s

50

S8

Pause Time for Dial Delay Modifier

2-255

s

2

S9

Carrier Detect Response Time

1-255

0.1 s

6

S10

Lost Carrier To Hang Up Delay

1-255

0.1 s

14

S11

DTMF Tone Duration

50-255 0.001 s

85

S12

Escape Prompt Delay (EPD)

0-255

0.02 s

50

S14

General Bit Mapped Options Status

 

 

138 (8Ah)

S16

Test Mode Bit Mapped Options Status

 

 

0

S19

Reserved

 

 

0

S20

Reserved

 

 

0

S21

V.24/General Bit Mapped Options Status

 

 

52 (34h)

S22

Speaker/Results Bit Mapped Options Status

 

 

117 (75h)

S23

General Bit Mapped Options Status

 

 

0

S24

Sleep Inactivity Timer

0-255

s

0

S25

Delay to DTR Off

0-255 s or 0.01 s

5

S26

RTS-to-CTS Delay

0-255

0.01 s

1

S27

General Bit Mapped Options Status

 

 

73 (49h)

S28

General Bit-Mapped Options Status

 

 

0

S29

Flash Dial Modifier Time

0-255

10 ms

70

S30

Disconnect Inactivity Timer

0-255

10 s

0

S31

General Bit-Mapped Options Status

 

 

192 (C0h)

S36

LAPM Failure Control

 

 

7

S38

Delay Before Forced Hangup

0-255

s

20

S39

Flow Control Bit Mapped Options Status

 

 

3

S40

General Bit-Mapped Options Status

 

 

104 (68h)

S41

General Bit-Mapped Options Status

 

 

195 (C3h)

S86

Call Failure Indication

0-26

 

21

S91

PSTN Transmit Attenuation Level

0-15

dBm

10 (Country

 

 

 

 

dependent)

S95

Extended Result Codes Control

 

 

0

* Default values may be modified using patch code.

 

 

 

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide

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Multi-Tech Systems MT2456SMI22 manual Summary of S-Parameter Defaults, Register Function Range/Units Default, Ascii