The send and receive SMS in .NET using GSM modem is an application that provides the source code for connecting to the GSM modem. The GSM modem uses the GSM mobile technology which acts as a mobile phone. But it is not exactly a mobile phone. It is a hardware device that requires SIM just like the mobile phone. One can easily depend on this application to get to know about the steps involved in sending SMS to mobile phones easily. The source code of the same is easily available. It operates over the mobile operator just like the mobile phone. The industries can easily use such devices. The GSM modem can also be connected to the computer which can provide internet connectivity. It can also help in sending the messages easily.

The protocols are available for the GSM modem that they follow. All the steps involved in sending and receiving the SMS using a GSM modem is easily available through this application. This is one such application that can provide detailed information regarding the same. For sending and receiving messages, the GSM modems are efficient. The GSM mobile phones are most suitable for the GSM modems. The other phone’s connectivity to the GSM modems is difficult. This is one such application that is very useful to college students. One can learn a lot using this application. Once the GSM modem is ready, one should connect to the computer. Then can check for connectivity to the GSM modem. Then the required port configurations are done. The connectivity to the modem depends on the port configurations mentioned. So it is very important to correctly mention the port connectivity. There are also many offers related to GSM modems. The connectivity to the GSM modem takes place through the network operator that the user registers.

Project screenshot:



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A collection of source codes that I wrote in VB 6.0, ASP.NET, PHP, C#.NET, VB.NET and JAVA in a course of my career as web developer and software engineer that I would like to share to my fellow programmers. Some of the codes here is not my original work that I found over the Internet and Books while I'm learning how to program. I hope you find my work useful in your learning in programming. Please share my work to other people also who interested to learn the basics of web development and programming. Thank you very much and Happy Productive Programming Everyone. for more info please WhatsApp us on +91-9481545735 or Email id:


  • jeff

    August 11, 2012 - 1:05 PM

    The code please

    • admin

      August 11, 2012 - 1:44 PM

      Just now I updated .. please check download link..

  • akbar

    August 11, 2012 - 2:37 PM

    iam not getting downloading, pls send the source code

    • admin

      August 11, 2012 - 4:53 PM

      download link is bottom of this page

  • tegah

    August 20, 2012 - 4:19 AM

    pls have problems loading project to vb 2008 sed helpful tips to

    • admin

      August 22, 2012 - 2:30 PM

      what problem you facing tegah…


    September 10, 2012 - 8:53 PM

    Can you tell me cost of GSM modem

    • admin

      September 11, 2012 - 10:33 AM

      it costs upto 300 to 5000

    • Aniket

      October 5, 2012 - 8:59 AM

      GSM modem mean GSM mobile phone dude

      • juju

        November 16, 2012 - 4:30 PM

        Dude.. it’s having 2 types 1.GSM mobile(Normal mobile phone) 2.GSM Modem(GSM Hardware for msging purpose)

    • Anonamouse ;)

      October 7, 2012 - 9:24 AM

      They’re available all over Alibaba or Aliexpress. Under $100 each, usually.

  • gr8

    October 21, 2012 - 11:31 AM

    how to run?

    • admin

      October 23, 2012 - 12:22 PM

      Please purchase GPRS kit to run this project code


    November 17, 2012 - 10:18 AM

    i need documentation

  • Khudai Rahim

    November 22, 2012 - 10:11 AM

    do we need program for mobile as well?

  • ankit

    December 1, 2012 - 11:41 AM

    plz tell me how to know about serialport name

  • rye

    December 11, 2012 - 10:50 AM

    do you have a project like this in vb6

  • abhinav kumar singh

    February 15, 2013 - 9:38 PM

    i nead the project for calling cia gsm modem

  • nikhil turale

    March 21, 2013 - 12:06 PM

    plz give the program code of

    Send and Receive SMS in .NET using GSM modem

  • robin

    May 9, 2013 - 7:49 PM

    Hi Sir.
    How Are You.
    can i see the sim Balance?

    GSM modem Accounts Balance

    Md. Robin Shamim.

  • Paul Paul Onat

    April 11, 2018 - 12:56 PM

    i cant receive sms .. can anyone help me to this problem? theres no error.. i download this system.. but i cant receive sms

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