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I want to develop a web application using for sending SMS by GSM modem. My question are

Can i connect my GSM modem to client PC for sending SMS? Server is different PC

If a SMS needs PIN how can i confirm this ?

Please help me by some C# code and how can i develop it.
Rahul VB 14-Jan-14 11:30am    
Nice question, i just want to add up one thing :
How to get a delivery report? Because i myself am working on a windows application for the same.
- Rahul

1 solution

You need to use a local SMS gateway to send SMS. Your web app runs on client machines. I am sure you don't want to use a GSM modem on the server to send text messages, even if it's possible, it would get expensive.
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Salim - Dhaka 20-Jan-14 1:20am    
Thanks, do you can help me please by any sample code or tutorial ?
Christian Graus 20-Jan-14 2:04am    
Doing this via GSM is stupidity for the reasons I stated. It won't work, what if two users want to send an SMS at the same time ? That's forgetting that you'd pay for all their messages. So, you need to find a webservice that works in the area that your users will be, and subscribe to it.
Salim - Dhaka 20-Jan-14 2:17am    
My system has no possibility of two users send an SMS at the same time. System just accept web mail from users in a special format. Admin will verify it and click a button then a SMS send to user's mobile number..... mail can come from any area but SMS will send to a specific area(Only a single area). Thanks...
Christian Graus 20-Jan-14 2:19am    
If you google you can find heaps of samples on how to send SMS using GSM in C#. That you're using ASP.NET is irrelevant, the code is the same, but your GSM phone will need to live plugged in to your server for it to work. If it's done manually, then you're probably better off writing a winforms app for your admin to use.
Salim - Dhaka 20-Jan-14 2:21am    

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