We all know that MTN BIS and Airtel BIS plans has been working on Android devices though that of MTN needs some tweaking with VPN apps but the Airtel BIS is straight forward without any settings but it is charged double whenever you are using it on Android.
Few years ago, Etisalat BIS rocked on Android devices but later stopped working but the great news now is that Etisalat BB plan is back
Make use of Smilleys Codes