TS Verification is a native Joomla 2.5 and 3.x plug-in, which is directly associated with one of the best verification system “On Verify” you would just need to install this plug-in to your site with your account details you have with “On Verify” and you are done.
It works with default Joomla registration process where upon sign up request, user will be asked to add their mobile number with valid country code which will be used in real time to inform user the secret code through automated process to complete the registration process.
Main advantage of this plug-in service is that it works through worldwide and available with language file which enable website owners from any country to use this service in their website with their native language to keep their website secure and free from spam.
This entire process is pretty quick and easy for user to get verified within few seconds!!
Note: This requires having an account with onverify.com and currently this plug-in provides support to phone verification process only.