Hello Experts, i have googled a lot that how to send sms from asp.net application without buying any device or gateway to send sms.
finally i got the idea it is possible with AT Commands C#, and i find an excellent article from CodeProject that is
http://www.codeproject.com/Articles/38705/Send-and-Read-SMS-through-a-GSM-Modem-using-AT-Com
i download this project and run, but it is not sending any message, every time there is a exception message "No data received from phone" at this section
public string ReadResponse(SerialPort port,int timeout)
{
string buffer = string.Empty;
try
{
do
{
if (receiveNow.WaitOne(timeout, false))
{
string t = ...
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