Multi-Tech Systems 7600 ユーザーズマニュアル

AT Commands for the Conexant Modem

 ION 7500 / ION 7600 User’s Guide

Page 288

Modem AT Commands Technical Note

AT+MS Commands Select Modulation

Selects the modulation; enables or disables auto-mode; specifies the lowest and 
highest connection rates; selects m-Law or A-Law codec type, and enables or 
disables robbed bit signaling generation (server modem) or detection (client 
modem).

+MS= <Mod> [,[<Automode>]  [,[<Min_Rate>] [,[<Max_Rate>] [,[<X_Law>]
[,[< Rb_Signaling>]]]]]] <CR>

AT+MS=? Send a string of information to the DTE consisting of supported 
options

\Nn

Operating Mode

AT\N0

Normal speed buffered mode

AT\N1

Serial interface

AT\N2

Reliable (error-correction) 

mode

AT\N3

Auto reliable mode

AT\N4

LAPM error-correction mode

AT\N5

MNP error-correction mode

<mod>

Modulation

Possible Rates (bps)

0

V.21

300

1

V.22

1200

2

V.22 bis

2400, 1200

3

V.23

1200

9

V.32

9600, 4800

10

V.32 bis

14400, 12000, 9600, 7200, 4800

11

V.34

33600, 31200, 28800, 26400, 24000, 21600, 19200, 16800, 

14400, 12000, 9600, 7200, 4800, 2400

64

Bell103

300

69

Bell212

1200

Command Group

Members

Description