I using PhoneStateChanged of PhoneEvents from the Phone library for the first time for a new user requirement. To better understand how it works I found a few references to code samples in the forum. Based on those samples, I made this simple app. I added the coding to the Starter...
I use this App since 2 years, it is simple, just put your name and mobile number and copy it or show it in big. It is very fast and is perfectly for the business, because you can quickly exchange contact information.
This is a fictional number ;)
Here is the link to the app.