I use airtel network, i don't know if any other network can do the same too. How to do it, if you login to your facebook account when ever you're in free mode, just click on MENU scroll down and locate Freebasics, then click through it and you will find multiple websites there, that you can be able to browse in them for free (including nairaland). Am browsing now for free with my tecno java phone, not even a smart phone. You can do absolutely everything on nairaland.