well for example I would like to create a web site where people can send sms....what exactly do you need for a web site to have that.....what kind of application do you need?

you have buy some sms gateway. there is many available. Or you can buy a SMS modem. But this u need to use sim card or make contract with the Phone Company....

Hi,
www.clickatell.com it is an online SMS gateway with an extremely easy API
Regards
Cameron

All is good! you can try http://www.intellisoftware.co.uk/sms-gateway/

You can also use a regular phone with the regular API. Nokia used to sell them

Typically if you want to be able to receive SMS as well, you need to lease an SMS "short code" from one of the wireless providers. These are 5 to 6 digit numbers. These are not cheap, however.

Hello,

With the service at: http://www.intellisoftware.co.uk/sms-gateway/ (http://www.intellisoftware.co.uk/sms-gateway/) , can this be set up on a website, so that visitors to the website have to either have an account, or they pay for the ability to send SMS before they actually send it?

Kind regards,
Anthony