Way2SMS, Fullness, Site2SMS, etc are different gateways available that help you send free text (SMS) messages from your mobile phone. For this you need to visit the webpage, compose the message and then send it. Now there is exciting application available with BlackBerry platform that directly sends your SMS through these gateways for free.
BlackBerry the Free Message (SMS) India application permit you to send free SMS to any mobile number in India. It will help you to save your expenses while just using your data connection. As all the heavy processing is handled on an external server, GPRS data usage is pretty low. At present it supports Way2SMS, FullOnSMS, Site2SMS, 160By2 and YouMint gateways and more gateways will be added later.

Source :  Mobigyaan