Dear, I want to build a project which is based on online banking. I am going to use sms transaction facility such as to withdraw or transfer money. So when any user sends a sms with his acc. no. to another acc. no. then how the computer knows or microcontroller knows the accpount nos?
ePayment. You transfer £10 to your phone. Then when you shop, you give the seller your £10-charged phone. A busy shopping spree can consume a mighty big number of phones :)