The way I plan to use it is:

1. Have people send SMS to a number to vote.
2. On the backend (assuming that the data comes back to my Web server), I will display the voting results on my Web site.
3. After say 10 minutes, I would like to press a button on my Web site so ONE of the people who sent an SMS earlier receive an SMS saying that person is a winner.

I'm an ASP .Net developer, so I just need an API to code against. One such company I saw that does this (but is limited to US) is:

• http://www.twilio.com/sms/

Do you know any international providers that are similar to Twilio SMS? I'm based in Sydney, Australia.

I've looked through the discussion here but could not find any International provider that does what Twilio SMS does:

• How to add SMS text messaging functionality to my website?

Thank you.