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Chapter 2 – AT Commands
Command:
Values:
Default:
Description:
DS= n Dial Stored Telephone Number
n = 0–3
none
Dials a number previously stored in directory number n by the &Zn= x command.
Example: ATDS=3 .
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
Command:
Command:
Value:
Default:
Description:
E n
H n
I n
L
L5
Echo Command Mode Characters
n = 0 or 1
1
E0 Does not echo keyboard input to the terminal.
E1 Does echo keyboard input to the terminal.
Hook Control
n = 0 or 1
0
H0 Goes on-hook (hang up) and terminate any &T test in progress.
H1 Goes off-hook (make the phone line busy); enters command mode.
Information Request
n = 0–6
None
I0 Displays the product code. Example: MT5600BA-V92.
I1 Calculates ROM checksum; displays the least significant byte in decimal format.
I2 Calculates ROM checksum and compares it to the prestored checksum, displays
OK if they match or ERROR if they don’t match.
I3 Displays the firmware version and application codes.
I4 Displays the OEM-defined identifier string in either binary or ASCII format.
I5 Displays the regional or country code. Example: 098 .
I6 Displays the modem data pump model and internal code version.
Not applicable.
Lists Current Operating Parameters
5
None
Displays the current values for the error correction, flow control, data compression, and
serial port speed commands. Example:
atL5
&E2 &E3 &E15 $SB115200
OK
Note: Use the &V command to display the other parameters.
Command:
Values:
Default:
Description:
M n Monitor Speaker Mode
n= 0, 1, 2, or 3
1
M0 Speaker is always off.
M1 Speaker is on until the carrier signal is detected.
M2 Speaker is always on when the modem is off-hook.
M3 Speaker is off when receiving carrier and during dialing, but on during answering.
Command:
Values:
Default:
Description:
Command:
Values:
Default:
Description:
O n
P
Return Online to Data Mode
0 or 1
None
O0 Exit online command mode and return to online data mode without a retrain.
Normally used after a +++ escape (see +++ escape sequence).
O1 Exit online command mode and return to online data mode after a retrain.
Pulse Dialing
P,T
T
Forces pulse (non-touch-tone) dialing until a T command or T dial modifier is received.
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F)
6
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相关PDF资料
MT5692SMI-IP-92
V.92 SERIAL DATA ONLY
MT5692SMI-V-34
V.34 DATA/FAX SOCKET MODEM
MT5692SMI-X-L-92
V.92 SERIAL DATA
MT9234MU
MODEM V.92 DATA/FAX USB WORLD
MT9234ZBA-NAM
MODEM V.92 WORLD DATA/FAX
MT9234ZBA-USB-CP
MODEM V.92 DATA/FAX USB WORLD
MT9234ZBA-USB
MODEM V.92 DATA/FAX WORLD USB
MT9234ZPX-PCIE-CP
MODEM V.92 DATA/FAX/VOICE WORLD
相关代理商/技术参数
MT5656ZDX-CP
功能描述:MODEM V.92 DATA/FAX 25 PACK RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-EU
功能描述:MODEM V.92 DATA/FAX EU BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-GB/IE
功能描述:MODEM V.92 DATA/FAX EK BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-NPS-CP
制造商:Multi-Tech Systems 功能描述:V.92 DATA/FAX MODEM (NO POWER SUPPLY) (25 MODEMS) - Bulk
MT5656ZDX-V
功能描述:MODEM V.92 VOICE/DATA/FAX RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-V-CP
制造商:Multi-Tech Systems 功能描述:V.92 VOICE/DATA/FAX MODEM (25 MODEMS) - Bulk
MT5656ZDX-V-EU
功能描述:MODEM V.92 DATA/FAX/VOICE BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装
MT5656ZDX-V-GB/IE
功能描述:MODEM V.92 DATA/FAX/VOICE BUNDLE RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiModem® ZDX 标准包装:1 系列:MultiModem® ZBA 数据格式:V.34，V.92 波特率:- 电源电压:- 安装类型:台式 封装/外壳:5.7" L x 4.3" W x 1.0" H（145mm x 109mm x 25mm） 供应商设备封装:- 包装:散装