Expert consultants now charge for their professional phone calls. Pay Per Minute is an Android mobile application that helps expert consultants and entertainers bill their professional phone calls with customers. As the product designer I worked with the Minutizer team, my client, and Adonis Software, the developer, to design the M. V. E. for one of their innovative services. Diagnosing an issue or just parting advice via phone is ubiquitous. It is the only solution for billing your customers for consulting, training, or advice via GSM phone calls.