Need to send SMS from a web portal, how?

[Bodhi Dharma Zen]

I want my users to be able to send SMS messages to other users, is there a way to integrate an application to my web portal? I need this to be an international service.

Thanks.

[MortFurd]

You'll need an SMS gateway. (http://en.wikipedia.org/wiki/SMS_gateways) Sign up with them, and they'll tell you how to use their service.

Some accept emails, others have web forms (that can also be filled out by a script on your server.)

If you've a DIY kinda person, you might find a cell phone that lets you control it through USB or serial to send messages. The services are probably cheaper and easier, though.

[Bodhi Dharma Zen]

Thanks. That appears to be exactly what I need.