SMS feature in ASP 3.0 based application

We have a windows2000 server with IIS 5.0. We have a cell phone service in Mumbai (Bombay), India with 1 relevant messagecenter number. Can anyone tell me how I can send/ receive an SMS alert from my asp application on a form being filled. currentlythe form filled triggers an email each to the webmaster and the user. I wish to trigger an SMS atleast to the webmaster on the said form being filled.