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by amatecki
How to use the SmsToolset library to send SMS over GSM network by using PDU format
by ShadowedR
A simple example of a C# Application interfacing with the Null Modem Emulator (com0com) driver to allow run time creation and configuration of Virtual Serial Ports
by ToughDev
Interesting findings about GSM SIEMENS TC35
by Shivachalappa Gotur
Detecting USB Modem Device using C#.NET

Latest Articles

by ToughDev
Interesting findings about GSM SIEMENS TC35
by amatecki
How to use the SmsToolset library to send SMS over GSM network by using PDU format
by Shivachalappa Gotur
Detecting USB Modem Device using C#.NET
by ShadowedR
A simple example of a C# Application interfacing with the Null Modem Emulator (com0com) driver to allow run time creation and configuration of Virtual Serial Ports

All Articles

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Modem 

26 Jan 2014 by User 59241
Does this help?How to write WMI Query to find USB MODEMS IN C#[^]
2 May 2016 by amatecki
How to use the SmsToolset library to send SMS over GSM network by using PDU format
4 Dec 2016 by OriginalGriff
This looks very like this question: How to restart usb ports useing C#?[^] which you already know, as you commented on it five minutes before you posted this.Don't duplicate questions: it wastes time, effort and work.Why do I get the feeling that at least one of these accounts is a sock...
22 Aug 2018 by Jochen Arndt
The Win32\_SerialPort class | Microsoft Docs[^] lists only physical serial ports and not virtual ones provided by device drivers. One solution is to use the MSSerial_PortName class in the \root\WMI namespace. See also List of SerialPorts queried using WMI differs from devicemanager? - Stack...
11 Aug 2011 by sortami
I want to create a phone book, this phone book must show the number of those how call me so I can get the caller number or ID by my software I have written the software that get the persons number and call them so I am sure my modem supports it.Now i want to write software in C# to get...
10 Aug 2011 by TheyCallMeMrJames
Are you talking about a mobile phone, a VoIP deployment or your home phone?If it's your home phone, not likely going to happen. You could, in theory, write something at the modem level, but that's a big task for someone just starting out.For mobile phone, again, not likely going to...
12 Aug 2011 by TheyCallMeMrJames
Great, so if you've worked at that level of coding before, we just need to know where it is you're having trouble. Here's a number of articles here on CP[^] based on a serial port modem search.And here's a way to test for caller id support on your modem, along with the sample result...
28 Dec 2011 by Nirvana19933
hi every body,i need some help and i hope you can help me.because i started to programming a little tool in c# to send some telnet commends to my fritz.box 7141 to controll the led-lights. but in my programm in dosn´t works an i don´t know why. i wont to send the commend "echo 1,3 >...
15 Jun 2012 by Amen3
I am making an sms desktop application using c# and GSM Modem in which user will automatically gets the reply of his message after querying the database. for this purpose i am using timer so that at every second application checks for any received message and then after querying the database...
28 Jun 2012 by Mohammad Reza Valadkhani
it`s better to make an event receiver to determine when message received .I think to set this option on GSM modem to show message when it received is AT+CNMI ( just Google it ) . you don`t need any timer for checking , if you do what i said it`s easy to use serialport_datareceived event...
4 Nov 2012 by tasinsahin
Hi,i am new in c# and i m interested in tapi.in my project, i want to add simple feature that is about making and receiving calling via fax-modem cardboard and hold the data of the callings.Where should i start? how can i make project work in an easiest way?
7 Mar 2013 by HassanMirza
Hi there, I'm building an IVR application, for that purpose I've to use voice modem to send wav files over it.When dialer dials the number, application automatically receives call, can detect digit pressed but unable to play wave file over telephone line.Details of wave file which...
22 May 2013 by NeoGetz0
Most of the 3G modem (USB sticks) are support voice call, but all of them can do this only through the dashboard software which is shipped with them.Do you have any information, how to get the voice from and pass the mic data to the 3G modem?When I plug it, it installs 4 COM ports: ...
30 May 2013 by nimboya
I am working on a project where I am building a server that can receive SMS from any mobile phone via a longcode (Phone Number) given to the user to send the SMSThis SMS is received by my server via a Modem with a SIM card inside the modem and can be used to process other kinds of...
6 Jun 2013 by sakshisoni
how to read text sms through modem using APIs and then store in database
6 Jun 2013 by ridoy
These for you..Send and Read SMS through a GSM Modem using AT Commands[^]How To Send and Receive SMS using GSM Modem[^]http://www.testech-elect.com/enfora/tutorial_send_receive_sms_using_gsm_modem.htm[^]
8 Aug 2013 by GokulKalal
Hello guys,I Am using Telit GL-865 GSM/GPRS. How do I upload continuous data that is coming from serial port onto database using HTTP POST request. I am successful in uploading data, But I am successful in uploading data but only for 14 times. if I press A and send it from hyperterminal 30...
15 Oct 2013 by Member 8293037
Hello,I have 3 PC connected via LAN cable cat5e to modem router.2 PC with win7 64bit and the third one win7 32bit.When PC (win764bit) shutdowns then other PC gets tle lost connection specially at Call Of duty - BO2How can I resolve this problem?Thanks
15 Oct 2013 by Richard MacCutchan
See Code Project Quick Answers FAQ[^].
1 Dec 2013 by Member 9245259
Hi,Can you send sample code of read sms from GSM Modem with AT command under click event using asp.net c#Thanks
1 Dec 2013 by OriginalGriff
Google is your friend: Be nice and visit him often. He can answer questions a lot more quickly than posting them here...A very quick search gave over 200,000 hits: Google[^]In future, please try to do at least basic research yourself, and not waste your time or ours.
1 Dec 2013 by Aydin Homay
HiYou need to socket programming with serial port so please follow of these links and review samples about it just pay attention to for do this purpose you need have familiarity with Telnet, Hyper Terminal and serial socket programming ;-) Simple...
2 Dec 2013 by Member 9245259
I huge gooogling But I can not solved this problem.protected void ReadSMS_Click(object sender, EventArgs e){openport();//Port Related function// Select SIM storageserialport.WriteLine("AT+CPMS=" + Environment.NewLine);System.Threading.Thread.Sleep(200);// Read the...
12 Jan 2014 by Ravuri Vasu
Hi,I am also working on same kind of implementation and I understand that when we initiate a call through NEMA port through AT command, it will call the destination number. The other port (Application Interface/Speech port) will start sending binary data once the call is answered by other...
29 Jan 2014 by agent_kruger
As we go to device manager it shows us a Node (MODEMS) that are connected to our pc. How to get all com port no. and name of each modem connected to my pc in c# win. form.I have already tried mSearch = new ManagementObjectSearcher("Select * from Win32_SerialPort"); andmSearch = new...
5 Feb 2014 by Herman Gouws
Hi.Does any one know how to communicate with there new driver less modems. Any example or link to how it works. how do I communicate with if with vb.net or c#. All I want to do is send SMS's, receive SMS's and send Ussd codes.
5 Feb 2014 by joginder-banger
try this link it's may be help full for you.Send SMS Using Or Without SMS Getway in asp.net[^]and another link is, in this articles full information about how can send sms through C# http://www.c-sharpcorner.com/UploadFile/b8d90a/send-sms-using-C-Sharp-net/[^]
26 May 2014 by iwd35
Hi friends, i have a pc and i connectted to the my modem(via ethernet cable). i want to prepare interface(VS2010) and i want to connect it and do it following: Modem access the admin page (IP: 192.168.1.1 password: admin password: admin) 1) wireless band (2.4GHz or 5GHz) changing2)...
26 May 2014 by OriginalGriff
We can't tell you exactly how to do it - the actual detail depends on the modem manufacturer and model: different details will be on different pages.But the basic principle is the same: Automating web browsing[^] may help.
7 Jul 2014 by OriginalGriff
It doesn't quite work like that.We do not do your work for you.If you want someone to write your code, you have to pay - I suggest you go to VWorker.com and ask there.But be aware: you get what you pay for. Pay peanuts, get monkeys.
31 Aug 2014 by Nelek
Have a look to:http://www.nullskull.com/faq/1767/find-the-modem-which-is-attached-to-computer.aspx[^]it might help. If it doesn't help check other solutions:https://www.google.de/?gws_rd=ssl#q=get%20modem%20name%20c%23[^]
1 Dec 2014 by ShadowedR
A simple example of a C# Application interfacing with the Null Modem Emulator (com0com) driver to allow run time creation and configuration of Virtual Serial Ports
29 Dec 2014 by Member 10719803
Hi, I am working in a phone system in C# using TAPI 3 library and I am looking to play a .wav file when called party answer the phone.I found the following code, but I get an invalidcastexception in the line "myTerminalSupport = (ITTerminalSupport)ln;". "ln" is a TAPI3Lib.ITAddress type...
24 Mar 2018 by Member 13745038
Hi Syeda Anila or anyone :-) I am a beginner to using an AT modem for building a mobile application with Arduino. Can you tell me just one simple answer. I dial a phone number by ATD774922910; The modem is ringing and expects the other phone to answer, which is hopefully done by ATA; But I am...
24 Mar 2018 by Peter_in_2780
If your call succeeds (is answered by a compatible modem), then in place of BUSY or NO ANSWER or whatever, you will receive CONNECT (often followed by more information, such as the baud rate).
22 Aug 2018 by Hazel J Chua
Hi there, I'm trying to query the WMI for serial port connections (COM ports). I can see the ports on the Device Manager but when trying to query them through WMI (Win32_SerialPort), nothing shows up. I am able to connect to one of the ports (COM7) via the HyperTerminal. It is a GSM/GPRS...
22 Aug 2018 by Hazel J Chua
@Jochen Arndt, Tried changing the query to use MSSerial_PortName and all I got was an error in the query with no results returned. After some reading the following query did work: strComputer = "." Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\CIMV2") Set colItems =...
13 Oct 2022 by Robert S4r
THIS QUESTION MAY SEAM A DUPLICATE, BUT NOT. after a long period of search on internet and no, result, then had to seek for assistance. All solutions apply to loading available ports in a combo box and the user checks one at a go. But the...
7 May 2023 by ToughDev
Interesting findings about GSM SIEMENS TC35
26 Jan 2014 by Sergey Alexandrovich Kryukov
Please see my comment to the question. Maybe you need another WMI class, "Win32_POTSModem": http://msdn.microsoft.com/en-us/library/aa394360%28v=vs.85%29.aspx[^].See also these...
3 Jul 2015 by Shivachalappa Gotur
Detecting USB Modem Device using C#.NET
15 Nov 2020 by Dave Kreskowiak
You would have to open each port, one at a time, and send a command to it to get an expected response. If you don't get that response, close the port and move on to the next one.
4 Dec 2016 by prof_ahmed
how to unplug/plug usb using c#What I have tried:i tried devcone ,restart,remove,rescan,disable,enableall this not working
28 Dec 2011 by Nirvana19933
i have no syntax errors in the program. but im not able to send the the comment "echo 1,3 > /dev/new_led" to the fritzbot, there is no reaction. and now i thing i send it wrong
17 Apr 2012 by sag_golpesar_amolbanin
how can I find the modem type and detect the caller id by the modem?
17 Apr 2012 by Nelek
I think this[^] and this[^] can help you
27 Jan 2013 by dlavrantonis
try this linkTAPI 3.0 Application development using C#.NET[^]
16 Jul 2013 by benhadi
hi all,how can detect information like IMSI, MSISDN from a Huawei modem E3131, knowing that when I plugged it in my computer a web page execute automatically under C# language !
10 Sep 2013 by Green Mile
I am getting following exception when reading sms through GSMCommunication.dll in c#GsmComm.GsmCommunication.CommException: No phone connected. at GsmComm.GsmCommunication.GsmPhone.VerifyValidConnection()at GsmComm.GsmCommunication.GsmPhone.SelectReadStorage(String storage)at...
31 Aug 2014 by Member 11026969
How can I get connected modem name of my computer? Also I want to find out if the connection is ethernet or wifi?Thanks for your answers.
15 Nov 2014 by Member 11217036
How to prevent nokia ATH HANGUPCALL on incoming calls
5 Apr 2016 by emmanuel koech
i have downloaded the source code "Send and Read SMS through a GSM Modem using AT Commands" but after running it and getting connected successfully the application seems to freeze with no error meseage or success message. what could be the problem please helpWhat I have tried:i have...