Talk Time Ranking

I want to display a ranking based on the usage history of talk time on your phone.You can be used by anyone because it is very simple to make.Since I only display the call time rankings,It can be used by simply launch the app, all users are available.There is no problem if the age at which you can make a phone call.
You can select a menu with the following button.You can set the period of time from the menu. (1-999)You can make a call from the list.

Tags: call, phone, rankings, time, conversation