gsm

GsmComm USSD command

由 妖精的绣舞 提交于 2021-02-19 08:51:13
问题 I have been using scampers library to send and receive SMS through a GSM modem. It is working pretty much the way I wanted. But the problem I stuck with is I can not issue command like *101# or similar, after doing some research I found these command are called USSD command. So my question is, has anyone been able to issue USSD command through Scampers library. 回答1: USSD is a different protocol than SMS so you can't use an SMS centric library to send USMD messages. It would be like trying to

How to access a SIM card programmatically?

由 混江龙づ霸主 提交于 2021-02-05 12:44:30
问题 Just any old GSM compatible SIM card (bonus for 3G USIM). I presume I need some hardware? Can anyone recommend something cheap for hobbyist, and something more professional? I presume that there will be full docs of an API with the h/w, so maybe this should be tagged "no-programming-related"? Sorry, if so. Any good URLs or books (I am conversant with the 3GPP standards). I'm not (black hat) hacking, don't worry, just not pleased with the likes of SIM Card Secretary, Data Doctor Recovery, etc,

SIM800C GSM AT COMMAND How to upload .amr audio file programmatically

由 你说的曾经没有我的故事 提交于 2021-01-28 11:57:28
问题 I am desperatly trying to upload some audio file to the internal memory of a SIM800C, so far this is what I've been able to do, but the uploaded file seems void, and doesnt play any sound. But with AT+FSLS=C:\\ I can see the file is there. Here are the AT commands I am using: AT+FSCREATE=tts2.amr AT+FSWRITE=tts2.amr,0,5030,10 AT+FSLS=C:\\ I made a nodeJS program to do the job, but I am openned to any other language that works on linux. modem.executeCommand('AT+FSCREATE=tts2.amr',(result) => {

AT command to register to network

由 ℡╲_俬逩灬. 提交于 2021-01-01 02:43:35
问题 I am trying use a ZTE Modem for testing purpose to send and receive sms on c# application. This is the modem I am using. http://www.flipkart.com/zte-mf190-3g-data-card/p/itmdhhrb6jwx9gjs. I am facing a problem when the software that is comes with the device is open, the device is registered to network as soon I close that software, the light on modem become red. I thinks that the software comes with device sending a command to modem to register to network, but don't know which I tried with AT

GSM encoding for SMS with special characters (Twilio)

由 拜拜、爱过 提交于 2020-07-18 08:05:13
问题 I hope and you can help me with this query that I have. I need to send messages with special characters avoiding to segment the message too much, that is, if the maximum number of characters for a GSM message is 160 and I write a message lower than the limit allowed for GSM with the simple fact of having at least one special character this message is change to UCS2 . I do not know if there is a way to avoid this, and that the message is only encoded with GSM without importing special

GSM encoding for SMS with special characters (Twilio)

由 给你一囗甜甜゛ 提交于 2020-07-18 08:05:08
问题 I hope and you can help me with this query that I have. I need to send messages with special characters avoiding to segment the message too much, that is, if the maximum number of characters for a GSM message is 160 and I write a message lower than the limit allowed for GSM with the simple fact of having at least one special character this message is change to UCS2 . I do not know if there is a way to avoid this, and that the message is only encoded with GSM without importing special

GSM encoding for SMS with special characters (Twilio)

由 被刻印的时光 ゝ 提交于 2020-07-18 08:05:08
问题 I hope and you can help me with this query that I have. I need to send messages with special characters avoiding to segment the message too much, that is, if the maximum number of characters for a GSM message is 160 and I write a message lower than the limit allowed for GSM with the simple fact of having at least one special character this message is change to UCS2 . I do not know if there is a way to avoid this, and that the message is only encoded with GSM without importing special

留学创业磨难多——展讯武平

由 微笑、不失礼 提交于 2020-04-04 06:08:33
展讯创始人之一。原展讯通信公司总裁兼CEO。先后获得清华大学学士学位，中国航天科学院硕士和博士学位。其曾在MobiLink Telecom公司任VLSI设计主管，在Trident Microsystems担任设计组经理及在瑞士Biel从事IC设计工作。 在系统集成电路、混合信号技术方面拥有丰富的设计经验和技术管理经验。2000年和一群海外学者决定怀着为祖国解决核心技术的理想，回国创业。2001年一同创立展讯通信（上海）公司。开始了创“芯”的梦想。2007年成功推动展讯通信在纳斯达克上市。 武平其人 武平，陕西省绥德县人，展讯通信创始人。先后获得清华大学学士学位，中国航天科学院硕士和博士学位。其曾在MobiLink Telecom公司任VLSI设计主管，在Trident Microsystems担任设计组经理及在瑞士Biel从事IC设计工作。 　在系统集成电路、混合信号技术方面拥有丰富的设计经验和技术管理经验。2000年和一群海外学者决定怀着为祖国解决核心技术的理想，回国创业。 　2001年，武平、陈大同等4名硅谷海归归国创立了展讯。2003年，展讯推出了全球第一颗单芯片 GSM/GPRS多媒体基带一体化处理器，2004年推出首颗TD-SCDMA/GSM双模基带芯片。随后，2007年展讯以“中国3G概念股”登陆纳斯达克。 　在国内TD-SCDMA手机大多选用了展讯
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