Previously, I tried to sell reload for mobile phone using Android application. I wrote that experience at http://android.plugie.com/?p=305. Asides from developing application Android that is used for reload mobile phone transaction by my customers, I made my own reload mobile phone server system by my self too. I develop the server using PHP languange progamming and mysql as database server. I rent Virtual Private Server as the server and use Centos Operating System. To secure the transaction, I use mobile phone number as user id and PIN. I use HTTPS to secure transaction through internet connection. Each data then is encrypted using my own encryption. So there are double encryptions. First using HTTPS and the second using special encryption.
After all ready, I begin operate my selling mobile phone reload business. I do the operational thing, such as:
2. Complain Handling
3. Trouble Shooting if there is a problem.
4. Customer Care
5. Handling deposit
6. Fixing and improving the system.