send free SMS from C# + ASP.NET

Question

I want to use any free SMS service to send the SMS (free) from my application. I am developing the application in C# + asp.net. How can I do the code for that.

Answer 1

If you manage to find a SMS service which allows you to send that many SMSs via an API then the provider should also have somewhere this API documented. If there is just a Webinterface then you have to simulate the HTTP communication (most probably by filling out form-fields) with your application. You have to find out what form-fields and login-data the SMS service expects and build your HTTP request accordingly.

Providing code for that is not possible since every SMS provider has its own interface and the communication for that has to be aligned for that.