Send SMS using modem

Question

Hello Friends

I am trying to implement automated sms(Short Msg ) system.I implemented sms receiving part.but I could't send a sms as reply.

Please if you can help me.

Thank you. 

Answer 1

this link can you help?

http://code.msdn.microsoft.com/windowsdesktop/Sending-SMS-Using-PC-COM-3d79e1d7

http://www.codeproject.com/Articles/19023/Sending-SMS-using-NET

http://www.codeproject.com/Articles/38705/Send-and-Read-SMS-through-a-GSM-Modem-using-AT-Com

http://www.codeproject.com/Articles/20420/How-To-Send-and-Receive-SMS-using-GSM-Modem

Answer 2

Oh I am Very sorry.I am using visual basic only friend.because I have no better knowledge about C#.net.most of your examples are in c#.net.some of not working in my version(visual basic express 2010).

Please if u can tell me that is there having some errors in below code fragment.

 Public Sub SendMessage(ByVal Message As String, ByVal PhoneNumber As String)
        Dim m1 As String = ""
        Dim i As Integer = 150
        Do While Message.Length > 0
            If Message.Length > i Then

                m1 = Message.Substring(0, i)

                MsgBox("" & m1)
                Me.SerialPort1.WriteLine("AT+CMGS=""" + PhoneNumber + """")
                Threading.Thread.Sleep(100)
                Me.SerialPort1.Write((m1 + ChrW(26)))


                Message = Message.Remove(0, i)
            Else
                Me.SerialPort1.WriteLine("AT+CMGS=""" + PhoneNumber + """")
                Threading.Thread.Sleep(100)
                Me.SerialPort1.Write((Message + ChrW(26)))
                Message = ""
            End If
            Threading.Thread.Sleep(5000)
        Loop


    End Sub

 thank you

Answer 3

Theirs some wcf/soap services that can do this and they are easy to use to send an sms message:

http://www.csoft.co.uk/sms/api/soap_to_sms.htm

Thats one but their are hundreds more floating around the internet that make making an sms sending message application easy.

heres my bing search if that doesnt help you so you can find a better one but i would look up soap/wcf services because they make life easier when doing sms messages so you dont code the hard stuff just use/consume the service:

http://www.bing.com/search?q=soap%20service%20to%20send%20sms%20message&sc=0-32&form=BB07LB&pc=BB07&QS=n

Why over the modem if its connected to internet cant you use web service? 

---

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - "Sherlock holmes" "speak softly and carry a big stick" - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda. Blog - http://jefferycarlsonblog.blogspot.com/

Answer 4

Hi Lucky,

Welcome to the MSDN forum.

Could you please provide us the detailed exception about your code snip? As for codes in C#, if you want to use them in VB.NET, you can convert them into VB.NET by a tool like this.

I'm looking forward to your feedback.

Best regards,

---

Shanks Zen
MSDN Community Support | Feedback to us

Answer 5

I believe maziyar has talked about development using other means if you need them. I can help you convert from c# to vb.net if its less then 100 lines of code to go through.

---

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - "Sherlock holmes" "speak softly and carry a big stick" - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to suffering - Yoda. Blog - http://jefferycarlsonblog.blogspot.com/