如何在PDU模式下通过GSM调制解调器发送SMS? [英] How to send SMS by GSM modem in PDU mode?
问题描述
我想以PDU模式发送SMS.我已经检查了调制解调器的规格，它支持PDU模式.
I want to send SMSs in PDU mode. I have checked the spec for my modem, and it supports PDU mode.
我已经开发了PDU编码器和解码器，但是现在我不知道如何将数据发送到调制解调器.我尝试了以下AT命令:
I have developed a PDU encoder and decoder, but now I do not know how to send data to my modem. I tried these AT commands:
AT
AT+CMGF=0
发送这些命令后，我发送了PDU数据，如下所示:
after sending these commands I sent the PDU data like this:
AT+CMGW="16079189390500410011000C918939050000000000AA02E834"
我已经使用此在线工具检查了此PDU的正确性:
I have checked the correctness of this PDU using this online tool :
http://www.twit88.com/home/utility/sms-pdu-encode-decode
但是通过AT命令发送后，调制解调器挂起.
but after sending it via the AT command, the modem hangs.
这是发送SMS PDU的正确方法吗? 我在Google上搜索，找不到有用的信息.
Is this the right way to send SMS PDUs? I searched on Google and can not find useful information.
推荐答案
首先，要在调制解调器处于pdu模式时发送短信，必须发送以下命令: AT + CMGS ＝<长度>. < CR> ;，其中length是(PDU二进制字符串的长度-2)/2. 当出现>"符号时，您必须发送pdu和ctrl + z字符(char.ConvertFromUtf32(26)).
First of all, to send sms when modem is in pdu mode, you must send these commands: AT+CMGS=<length> <CR>, where length is (length of PDU binary string - 2) / 2. When '>' symbol appears you must send your pdu and ctrl+z character (char.ConvertFromUtf32(26)).
以下是一些有用的资源: http://www.developershome.com/sms/ SMS教程 http://www.diafaan. com/sms-tutorials/gsm-modem-tutorial/online-sms-deliver-pdu-decoder/另一个在线pdu解码器(但我认为您的链接更好) http://www.fccps.cz/img.asp?attid=24590 AT命令指南(适用于Wavecom，但没有区别)
Here are some resources that may be useful: http://www.developershome.com/sms/ SMS Tutorial http://www.diafaan.com/sms-tutorials/gsm-modem-tutorial/online-sms-deliver-pdu-decoder/ another online pdu decoder (but your link is better in my opinion) http://www.fccps.cz/img.asp?attid=24590 AT commands guide (for wavecom, but there is no difference)
最后的建议-使用任何telnet客户端连接并测试调制解调器，并查看其响应方式
Last advice - use any telnet client to connect and test your modem and see how it responds
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