SMS gateways for iPhone

I am developing an application for iPhone which need to send an SMS message to mutiple users at a time .Is there any third party solut开发者_如何学Goion to do this.Is there anyone previously done this.Looking for a solution. Thanks in advance

You can use the standard mechanism (i.e. MFMessageComposeViewController) to send SMS messages to multiple recipients. The recipients property is an NSArray object.

What about an HTTP to SMS service. In the UK I have used http://www.textanywhere.net/ although I am sure there will be many, many others providing this service now.