Dialer is a fully functional app that pairs with a user’s phone to handle calls and manage contacts on the car screen.
Built into Android Automotive OS, Dialer is designed to provide Bluetooth calling with minimal driver distraction.
![](https://developers.google.cn/cars/design/automotive-os/apps/dialer/images/Dialer_Overview-2.png?authuser=9)
Spatial model
Provides a high-level overview of the main elements of the Dialer architecture and how they fit together to support app navigation, contact views, calling, and call management
![](https://developers.google.cn/cars/design/automotive-os/apps/dialer/images/Dialer_Overview-3.png?authuser=9)
Navigating the app
Describes the primary, top-level navigation model based on tabs and app controls for search and settings
![](https://developers.google.cn/cars/design/automotive-os/apps/dialer/images/Dialer_Overview-4.png?authuser=9)
Working with contacts
Describes how users browse contacts, navigating from high-level views to detail views, how they search for contacts, how users create a collection of important and frequently accessed phone numbers
![](https://developers.google.cn/cars/design/automotive-os/apps/dialer/images/Dialer_Overview-5.png?authuser=9)
Handling calls
Describes how users can place calls from various views, receive and respond to calls, switch between calls, and create conference calls
![](https://developers.google.cn/cars/design/automotive-os/apps/dialer/images/Dialer_Overview-11.png?authuser=9)
Adjusting settings
Describes how users set preferences for their Dialer start screen and the order in which contacts are listed