On Call Phone Manager for Android

Tired of leaving your phone volume up while on call because your employers and customers call from different numbers? This app allows you to manage a contact list without having to know the full phone number of the contact and will modify your audio settings to allow the call to come through accordingly.

Features:

- ad-free and open-source

- battery friendly

- sound notifications

- works in the background

The code can be found on Github here: https://github.com/hallsjj08/on-call-manager