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| 型号： | MT9234MU-CDC-CP |
| 厂商： | Multi-Tech Systems |
| 文件页数： | 52/66页 |
| 文件大小： | 0K |
| 描述： | MODEM V.92 DATA/FAX USB WORLD 25 |
| 标准包装： | 1 |
| 系列： | MultiMobile™ USB |
| 数据格式： | V.34，V.92 |
| 安装类型： | 台式 |
| 封装/外壳： | 3.1" L x 1.3" W x 1.0" H（80mm x 30mm x 25mm） |
| 包装： | 散装 |
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Chapter 4 – Voice Commands
+VSM
Description:
Syntax:
Values:
Response:
Result Codes:
Select Voice Compression Method
Sets the modem to a specified voice compression method, silence compression
sensitivity, and voice sampling rate. The modem can maintain a different event
detection capability for each compression method. For example, you may want to
record your welcome message with the lowest amount of silence removal, with the
goal of reducing distortion. For other messages you may want a more assertive
silence removal, to limit disk space used for recording purposes.
AT+VSM=<cml>,<vsr>
<cml> A decimal number identifying the compression method. The valid values are
128, 129, 130, 131, 132. Default is 129.
<vsr> A <range of values> containing the supported range of for voice samples per
second of the analog signal (8000).
Response to AT+VSM=?
128,"8-BIT LINEAR",(7200,8000,11025)
129,"16-BIT LINEAR",(7200,8000,11025)
130,"8-BIT ALAW",(8000)
131,"8-BIT ULAW",(8000)
132,"IMA ADPCM",(7200,8000,11025)
OK if the modem accepts the command.
ERROR if one or more of the following apply: 1) the any parameter entered is out of
range, or 2) any of the four parameters are missing from the command string. If an
error occurs, the modem retains the previous <sds> and <sdi> parameter values.
Reports:
+VSM?
+VSM=?
Displays current or selected values.
Reports <cml>,<vsr>
Example: 1,8000,0,0.
The default is 129,"16-BIT LINEAR",8000
The +VSM=? command reports several compression method identifiers
in one of two ways: either 1) a compression method (for PCM coding)
from the table below, or 2) a co-operative identifier (non-PCM coding)
used with other manufacturer's equipment.
Reports the following:
<cml> See above
<cmid> An alphanumeric string describing the compression method
(UNSIGNED PCM, IMA ADPCM, 2-Bit ADPCM, or 4-Bit
ADPCM)
<bps> A decimal number defining the average number of bits in the
compressed sample not including silence compression (2, 4,
or 8)
<tm> A decimal number (0) reporting the time interval in units of
0.1 seconds between timing marks. 0 reports timing marks
are not supported.
<vsr> See above. A report of 0 indicates not supported.
Example: The following shows an inquiry about the modem support
of compression and other data. In this example, the modem
reports that it supports two compression methods.
AT+VSM=?
128,"SIGNED PCM",12,0,(7200-8000,11025)
132,"ADPCM/AQ",2,40,(7200)
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H)
52
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相关代理商/技术参数 |
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| MT9234MU-CDC-XR | 功能描述:MODEM V.92 DATA/FAX USB WORLD RoHS:是 类别:计算机，办公室 - 元件，配件 >> 调制解调器 系列:MultiMobile™ USB 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 |
| MT9234MU-CDC-XR-CP | 制造商:Multi-Tech Systems 功能描述:V.92 DATA/FAX WORLD MODEM (USB) (25 MODEMS) - Bulk |
| MT9234SMI | 制造商:MULTI TECH SYSTEM 功能描述: |
| MT9234SMI-92 | 功能描述:拨号模块 V.92 Serial Data V.34 FAX - 5V RoHS:否 制造商:Multi-Tech Systems 产品:Data / Fax Modems 最大数据速率:56 kbps 存储类型:Flash 接口类型:Serial 工作电源电压:3.3 V 工作电源电流:95 mA 功耗:310 mW 最大工作温度:+ 70 C 尺寸:64.5 mm x 26.5 mm x 17 mm |
| MT9234SMI-92.R1 | 功能描述:拨号模块 V.92 Serial Data V.34 Fax 5V RoHS:否 制造商:Multi-Tech Systems 产品:Data / Fax Modems 最大数据速率:56 kbps 存储类型:Flash 接口类型:Serial 工作电源电压:3.3 V 工作电源电流:95 mA 功耗:310 mW 最大工作温度:+ 70 C 尺寸:64.5 mm x 26.5 mm x 17 mm |
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