Even I have heard of people earning from mobile by either reading sms or receiving call but I am not sure of how genuine these are. What I can suggest is that you do a Google search on it and if you have faith and trust on those you may start doing it...!
There are few more website for working through mobile by sending messages to the given data. but we need to invest the amount. but i feel if they say to invest money then it may not be genuine one
