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Questions tagged [modem]

A device that can modulate (convert analog signal to digital) and demodulate (convert digital signal to analog)

A modem (modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data.

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how to send sms via a dual sim mobile using serial port

I am sending sms to recipients using following code private void button1_Click(object sender, EventArgs e) { var com5 = new SerialPort("COM5"); if (!com5.IsOpen) com5.Open(); com5.WriteLine("AT" + Environment.NewLine); …
kashif
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AT&F command , c# modem and phone line

i have pretty hard task, i need to call to device in the field and take out some data from it in c#. What i did so far i installed some com sniffer and recored some communication. I am showing here first part where com port is established and…
kosnkov
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GSM USSD Modem Request

How can I send a USSD request via GSM modem using c#. I want to be able to execute any code and the response should come back as an object or string that I can use against a regex
Kelly Jumpp
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Collecting data from 3G modem

How can I extract data from 3G modem in JAVA using eclipse Luna? The data I want to extract is: The SIM card information - IMSI The information in the data key IMEI Manufacturer Network information: Minimal Signal Level, average and…
Rika
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What is best hardware solution for sending sms?

I have a task to create production system for sending sms, for approximetly 10 000- 20 000 in a day. Our company have an agreement with local provider, and have multiple SIM card. I'm looking for 3g modems or some hardware (like GoIP) but i need…
Виталик Кравчинский
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