User-734925760 posted
Hi,
So far as I know, WebService is a choice.
Please refer to the links below:
1
How to Send SMS Messages from C# using an SQL Database It illustrates of sending SMS messages from C# using an SQL database server and an SMS Gateway
2 Sending SMS using .NET through a Web service This article talks how to use web service in .NET and also you will get some information about SMS, GPRS etc.
3 Sending sms using vb.net See the reply from Letscode, AhCacao and NetDev etc, this thread must be very helpful.
4 vb.net AT commands to send SMS It talks about sending SMS to any mobile using GSM modem or your mobile connected via USB able to Computer.
Hope it’s useful for you.
Best Regards,
Michelle Ge