How to send sms using gsm moden

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C#

I want to send 400 character sms using gsm moden d link dwn 157 c# if err then repet send

What I have tried:

I want to send 400 character sms using gsm moden d link dwn 157 c# if err then repet send

Posted 13-Mar-16 8:48am

IrfanfromMultanPakistan

Updated 14-Mar-16 0:37am

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Comments

Afzaal Ahmad Zeeshan 13-Mar-16 15:01pm

Then? What is the problem? Most of the times the source code required is almost packaged with the user guide or is explained in the development tools.

IrfanfromMultanPakistan 13-Mar-16 16:12pm

i want to send 500 words sms but this code send only 160 words

private void SendSMS(string message, string Numbers)
{
string indataa = Port.ReadExisting();

if (Port.IsOpen)
{
//SerialPort Port = (SerialPort);

string indataaa = Port.ReadExisting();

// MessageBox.Show(indata);
Port.Write("AT" + Environment.NewLine);
System.Threading.Thread.Sleep(100);
Port.Write("AT+CMGF=1" + Environment.NewLine);
System.Threading.Thread.Sleep(100);
Port.Write("AT+CFUN=1" + Environment.NewLine);
Port.Write("AT+CMGS=" + (char)34 + Numbers + (char)34 + Environment.NewLine);
System.Threading.Thread.Sleep(100);
Port.Write(message + (char)26 + Environment.NewLine);
// Port.Write(MyMessage + Environment.NewLine + (char)(26));
System.Threading.Thread.Sleep(300);
System.IO.StreamWriter file2 = new System.IO.StreamWriter(@"D:\file.txt", true);
file2.WriteLine("Port" + DateTime.Now + "=" + "Mobile No =" + Numbers);
file2.Close();
// MessageBox.Show(indata);
// Port.Close();
i want to send 500 words sms but this is for only 160 words

Mohammad Reza Valadkhani 14-Mar-16 5:28am

you have to create message part, for sending big message you have to create msg part

IrfanfromMultanPakistan 14-Mar-16 5:34am

how to plz tel me how to send parts and plz tech me how to plz

Mohammad Reza Valadkhani 14-Mar-16 5:27am

There is many choices to do that, you can do it by AT Commands over serial port or some third-party Library that have predefined code like GSMCOMM

IrfanfromMultanPakistan 14-Mar-16 5:33am

how to show me link

Mohammad Reza Valadkhani 14-Mar-16 6:41am

Check the Solution 1 please

IrfanfromMultanPakistan 14-Mar-16 12:04pm

but i cant understand how to Sending of long (concatenated) Unicode messages plz explain an exemple plz

Mohammad Reza Valadkhani 14-Mar-16 12:11pm

did you download the samples ?!

IrfanfromMultanPakistan 15-Mar-16 9:42am

yse i download the smple and do it but i want to know i want to do it that in "AT" command is it posibale or not

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Mohammad Reza Valadkhani · Accepted Answer · 2016-03-14T00:37:00

You can use this (GSMCOMM) library, please consider for sending long messages you have to create multiple pdu mesage this link, please download it, the packages contains sample and information enough for your problem
it support also GSM modems.
SMS libraries (for GSM phones)[^]

Sample

C#

#region MultipleMessaging
private SmsSubmitPdu[] CreateConcatMessage(string message, string number, bool unicode, bool showParts)
{
    SmsSubmitPdu[] pdus = null;
    try
    {
        if (!unicode)
        {

            pdus = GsmComm.PduConverter.SmartMessaging.SmartMessageFactory.CreateConcatTextMessage(message, number);
        }
        else
        {

            pdus = GsmComm.PduConverter.SmartMessaging.SmartMessageFactory.CreateConcatTextMessage(message, true, number);
        }
    }
    catch (Exception ex)
    {
        //MessageBox.Show(ex.ToString());
        return null;
    }



    return pdus;
}

private void SendMultiple(SmsSubmitPdu[] pdus)
{


    try
    {
        // Send the created messages

        foreach (SmsSubmitPdu pdu in pdus)
        {

            mainComminucator.SendMessage(pdu);
        }

    }
    catch (Exception ex)
    {
        ///MessageBox.Show("ERROR" + ex.ToString());
    }


}
#endregion